逐步完成前后端服务器

frontend/node_modules/echarts/lib/util/ECEventProcessor.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+import { parseClassType } from './clazz.js';
+/**
+ * Usage of query:
+ * `chart.on('click', query, handler);`
+ * The `query` can be:
+ * + The component type query string, only `mainType` or `mainType.subType`,
+ *   like: 'xAxis', 'series', 'xAxis.category' or 'series.line'.
+ * + The component query object, like:
+ *   `{seriesIndex: 2}`, `{seriesName: 'xx'}`, `{seriesId: 'some'}`,
+ *   `{xAxisIndex: 2}`, `{xAxisName: 'xx'}`, `{xAxisId: 'some'}`.
+ * + The data query object, like:
+ *   `{dataIndex: 123}`, `{dataType: 'link'}`, `{name: 'some'}`.
+ * + The other query object (cmponent customized query), like:
+ *   `{element: 'some'}` (only available in custom series).
+ *
+ * Caveat: If a prop in the `query` object is `null/undefined`, it is the
+ * same as there is no such prop in the `query` object.
+ */
+var ECEventProcessor = /** @class */function () {
+  function ECEventProcessor() {}
+  ECEventProcessor.prototype.normalizeQuery = function (query) {
+    var cptQuery = {};
+    var dataQuery = {};
+    var otherQuery = {};
+    // `query` is `mainType` or `mainType.subType` of component.
+    if (zrUtil.isString(query)) {
+      var condCptType = parseClassType(query);
+      // `.main` and `.sub` may be ''.
+      cptQuery.mainType = condCptType.main || null;
+      cptQuery.subType = condCptType.sub || null;
+    }
+    // `query` is an object, convert to {mainType, index, name, id}.
+    else {
+      // `xxxIndex`, `xxxName`, `xxxId`, `name`, `dataIndex`, `dataType` is reserved,
+      // can not be used in `compomentModel.filterForExposedEvent`.
+      var suffixes_1 = ['Index', 'Name', 'Id'];
+      var dataKeys_1 = {
+        name: 1,
+        dataIndex: 1,
+        dataType: 1
+      };
+      zrUtil.each(query, function (val, key) {
+        var reserved = false;
+        for (var i = 0; i < suffixes_1.length; i++) {
+          var propSuffix = suffixes_1[i];
+          var suffixPos = key.lastIndexOf(propSuffix);
+          if (suffixPos > 0 && suffixPos === key.length - propSuffix.length) {
+            var mainType = key.slice(0, suffixPos);
+            // Consider `dataIndex`.
+            if (mainType !== 'data') {
+              cptQuery.mainType = mainType;
+              cptQuery[propSuffix.toLowerCase()] = val;
+              reserved = true;
+            }
+          }
+        }
+        if (dataKeys_1.hasOwnProperty(key)) {
+          dataQuery[key] = val;
+          reserved = true;
+        }
+        if (!reserved) {
+          otherQuery[key] = val;
+        }
+      });
+    }
+    return {
+      cptQuery: cptQuery,
+      dataQuery: dataQuery,
+      otherQuery: otherQuery
+    };
+  };
+  ECEventProcessor.prototype.filter = function (eventType, query) {
+    // They should be assigned before each trigger call.
+    var eventInfo = this.eventInfo;
+    if (!eventInfo) {
+      return true;
+    }
+    var targetEl = eventInfo.targetEl;
+    var packedEvent = eventInfo.packedEvent;
+    var model = eventInfo.model;
+    var view = eventInfo.view;
+    // For event like 'globalout'.
+    if (!model || !view) {
+      return true;
+    }
+    var cptQuery = query.cptQuery;
+    var dataQuery = query.dataQuery;
+    return check(cptQuery, model, 'mainType') && check(cptQuery, model, 'subType') && check(cptQuery, model, 'index', 'componentIndex') && check(cptQuery, model, 'name') && check(cptQuery, model, 'id') && check(dataQuery, packedEvent, 'name') && check(dataQuery, packedEvent, 'dataIndex') && check(dataQuery, packedEvent, 'dataType') && (!view.filterForExposedEvent || view.filterForExposedEvent(eventType, query.otherQuery, targetEl, packedEvent));
+    function check(query, host, prop, propOnHost) {
+      return query[prop] == null || host[propOnHost || prop] === query[prop];
+    }
+  };
+  ECEventProcessor.prototype.afterTrigger = function () {
+    // Make sure the eventInfo won't be used in next trigger.
+    this.eventInfo = null;
+  };
+  return ECEventProcessor;
+}();
+export { ECEventProcessor };
+;

frontend/node_modules/echarts/lib/util/KDTree.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import quickSelect from './quickSelect.js';
+var KDTreeNode = /** @class */function () {
+  function KDTreeNode(axis, data) {
+    this.axis = axis;
+    this.data = data;
+  }
+  return KDTreeNode;
+}();
+/**
+ * @constructor
+ * @alias module:echarts/data/KDTree
+ * @param {Array} points List of points.
+ * each point needs an array property to represent the actual data
+ * @param {Number} [dimension]
+ *        Point dimension.
+ *        Default will use the first point's length as dimension.
+ */
+var KDTree = /** @class */function () {
+  function KDTree(points, dimension) {
+    // Use one stack to avoid allocation
+    // each time searching the nearest point
+    this._stack = [];
+    // Again avoid allocating a new array
+    // each time searching nearest N points
+    this._nearstNList = [];
+    if (!points.length) {
+      return;
+    }
+    if (!dimension) {
+      dimension = points[0].array.length;
+    }
+    this.dimension = dimension;
+    this.root = this._buildTree(points, 0, points.length - 1, 0);
+  }
+  /**
+   * Recursively build the tree.
+   */
+  KDTree.prototype._buildTree = function (points, left, right, axis) {
+    if (right < left) {
+      return null;
+    }
+    var medianIndex = Math.floor((left + right) / 2);
+    medianIndex = quickSelect(points, left, right, medianIndex, function (a, b) {
+      return a.array[axis] - b.array[axis];
+    });
+    var median = points[medianIndex];
+    var node = new KDTreeNode(axis, median);
+    axis = (axis + 1) % this.dimension;
+    if (right > left) {
+      node.left = this._buildTree(points, left, medianIndex - 1, axis);
+      node.right = this._buildTree(points, medianIndex + 1, right, axis);
+    }
+    return node;
+  };
+  ;
+  /**
+   * Find nearest point
+   * @param  target Target point
+   * @param  squaredDistance Squared distance function
+   * @return Nearest point
+   */
+  KDTree.prototype.nearest = function (target, squaredDistance) {
+    var curr = this.root;
+    var stack = this._stack;
+    var idx = 0;
+    var minDist = Infinity;
+    var nearestNode = null;
+    if (curr.data !== target) {
+      minDist = squaredDistance(curr.data, target);
+      nearestNode = curr;
+    }
+    if (target.array[curr.axis] < curr.data.array[curr.axis]) {
+      // Left first
+      curr.right && (stack[idx++] = curr.right);
+      curr.left && (stack[idx++] = curr.left);
+    } else {
+      // Right first
+      curr.left && (stack[idx++] = curr.left);
+      curr.right && (stack[idx++] = curr.right);
+    }
+    while (idx--) {
+      curr = stack[idx];
+      var currDist = target.array[curr.axis] - curr.data.array[curr.axis];
+      var isLeft = currDist < 0;
+      var needsCheckOtherSide = false;
+      currDist = currDist * currDist;
+      // Intersecting right hyperplane with minDist hypersphere
+      if (currDist < minDist) {
+        currDist = squaredDistance(curr.data, target);
+        if (currDist < minDist && curr.data !== target) {
+          minDist = currDist;
+          nearestNode = curr;
+        }
+        needsCheckOtherSide = true;
+      }
+      if (isLeft) {
+        if (needsCheckOtherSide) {
+          curr.right && (stack[idx++] = curr.right);
+        }
+        // Search in the left area
+        curr.left && (stack[idx++] = curr.left);
+      } else {
+        if (needsCheckOtherSide) {
+          curr.left && (stack[idx++] = curr.left);
+        }
+        // Search the right area
+        curr.right && (stack[idx++] = curr.right);
+      }
+    }
+    return nearestNode.data;
+  };
+  ;
+  KDTree.prototype._addNearest = function (found, dist, node) {
+    var nearestNList = this._nearstNList;
+    var i = found - 1;
+    // Insert to the right position
+    // Sort from small to large
+    for (; i > 0; i--) {
+      if (dist >= nearestNList[i - 1].dist) {
+        break;
+      } else {
+        nearestNList[i].dist = nearestNList[i - 1].dist;
+        nearestNList[i].node = nearestNList[i - 1].node;
+      }
+    }
+    nearestNList[i].dist = dist;
+    nearestNList[i].node = node;
+  };
+  ;
+  /**
+   * Find nearest N points
+   * @param  target Target point
+   * @param  N
+   * @param  squaredDistance Squared distance function
+   * @param  output Output nearest N points
+   */
+  KDTree.prototype.nearestN = function (target, N, squaredDistance, output) {
+    if (N <= 0) {
+      output.length = 0;
+      return output;
+    }
+    var curr = this.root;
+    var stack = this._stack;
+    var idx = 0;
+    var nearestNList = this._nearstNList;
+    for (var i = 0; i < N; i++) {
+      // Allocate
+      if (!nearestNList[i]) {
+        nearestNList[i] = {
+          dist: 0,
+          node: null
+        };
+      }
+      nearestNList[i].dist = 0;
+      nearestNList[i].node = null;
+    }
+    var currDist = squaredDistance(curr.data, target);
+    var found = 0;
+    if (curr.data !== target) {
+      found++;
+      this._addNearest(found, currDist, curr);
+    }
+    if (target.array[curr.axis] < curr.data.array[curr.axis]) {
+      // Left first
+      curr.right && (stack[idx++] = curr.right);
+      curr.left && (stack[idx++] = curr.left);
+    } else {
+      // Right first
+      curr.left && (stack[idx++] = curr.left);
+      curr.right && (stack[idx++] = curr.right);
+    }
+    while (idx--) {
+      curr = stack[idx];
+      var currDist_1 = target.array[curr.axis] - curr.data.array[curr.axis];
+      var isLeft = currDist_1 < 0;
+      var needsCheckOtherSide = false;
+      currDist_1 = currDist_1 * currDist_1;
+      // Intersecting right hyperplane with minDist hypersphere
+      if (found < N || currDist_1 < nearestNList[found - 1].dist) {
+        currDist_1 = squaredDistance(curr.data, target);
+        if ((found < N || currDist_1 < nearestNList[found - 1].dist) && curr.data !== target) {
+          if (found < N) {
+            found++;
+          }
+          this._addNearest(found, currDist_1, curr);
+        }
+        needsCheckOtherSide = true;
+      }
+      if (isLeft) {
+        if (needsCheckOtherSide) {
+          curr.right && (stack[idx++] = curr.right);
+        }
+        // Search in the left area
+        curr.left && (stack[idx++] = curr.left);
+      } else {
+        if (needsCheckOtherSide) {
+          curr.left && (stack[idx++] = curr.left);
+        }
+        // Search the right area
+        curr.right && (stack[idx++] = curr.right);
+      }
+    }
+    // Copy to output
+    for (var i = 0; i < found; i++) {
+      output[i] = nearestNList[i].node.data;
+    }
+    output.length = found;
+    return output;
+  };
+  return KDTree;
+}();
+export default KDTree;

frontend/node_modules/echarts/lib/util/animation.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+/**
+ * Animate multiple elements with a single done-callback.
+ *
+ * @example
+ *  animation
+ *      .createWrap()
+ *      .add(el1, {x: 10, y: 10})
+ *      .add(el2, {shape: {width: 500}, style: {fill: 'red'}}, 400)
+ *      .done(function () { // done })
+ *      .start('cubicOut');
+ */
+var AnimationWrap = /** @class */function () {
+  function AnimationWrap() {
+    this._storage = [];
+    this._elExistsMap = {};
+  }
+  /**
+   * Caution: a el can only be added once, otherwise 'done'
+   * might not be called. This method checks this (by el.id),
+   * suppresses adding and returns false when existing el found.
+   *
+   * @return Whether adding succeeded.
+   */
+  AnimationWrap.prototype.add = function (el, target, duration, delay, easing) {
+    if (this._elExistsMap[el.id]) {
+      return false;
+    }
+    this._elExistsMap[el.id] = true;
+    this._storage.push({
+      el: el,
+      target: target,
+      duration: duration,
+      delay: delay,
+      easing: easing
+    });
+    return true;
+  };
+  /**
+   * Only execute when animation done/aborted.
+   */
+  AnimationWrap.prototype.finished = function (callback) {
+    this._finishedCallback = callback;
+    return this;
+  };
+  /**
+   * Will stop exist animation firstly.
+   */
+  AnimationWrap.prototype.start = function () {
+    var _this = this;
+    var count = this._storage.length;
+    var checkTerminate = function () {
+      count--;
+      if (count <= 0) {
+        // Guard.
+        _this._storage.length = 0;
+        _this._elExistsMap = {};
+        _this._finishedCallback && _this._finishedCallback();
+      }
+    };
+    for (var i = 0, len = this._storage.length; i < len; i++) {
+      var item = this._storage[i];
+      item.el.animateTo(item.target, {
+        duration: item.duration,
+        delay: item.delay,
+        easing: item.easing,
+        setToFinal: true,
+        done: checkTerminate,
+        aborted: checkTerminate
+      });
+    }
+    return this;
+  };
+  return AnimationWrap;
+}();
+export function createWrap() {
+  return new AnimationWrap();
+}

frontend/node_modules/echarts/lib/util/clazz.js

@@ -0,0 +1,305 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import * as zrUtil from 'zrender/lib/core/util.js';
+var TYPE_DELIMITER = '.';
+var IS_CONTAINER = '___EC__COMPONENT__CONTAINER___';
+var IS_EXTENDED_CLASS = '___EC__EXTENDED_CLASS___';
+/**
+ * Notice, parseClassType('') should returns {main: '', sub: ''}
+ * @public
+ */
+export function parseClassType(componentType) {
+  var ret = {
+    main: '',
+    sub: ''
+  };
+  if (componentType) {
+    var typeArr = componentType.split(TYPE_DELIMITER);
+    ret.main = typeArr[0] || '';
+    ret.sub = typeArr[1] || '';
+  }
+  return ret;
+}
+/**
+ * @public
+ */
+function checkClassType(componentType) {
+  zrUtil.assert(/^[a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)?$/.test(componentType), 'componentType "' + componentType + '" illegal');
+}
+export function isExtendedClass(clz) {
+  return !!(clz && clz[IS_EXTENDED_CLASS]);
+}
+/**
+ * Implements `ExtendableConstructor` for `rootClz`.
+ *
+ * @usage
+ * ```ts
+ * class Xxx {}
+ * type XxxConstructor = typeof Xxx & ExtendableConstructor
+ * enableClassExtend(Xxx as XxxConstructor);
+ * ```
+ */
+export function enableClassExtend(rootClz, mandatoryMethods) {
+  rootClz.$constructor = rootClz; // FIXME: not necessary?
+  rootClz.extend = function (proto) {
+    if (process.env.NODE_ENV !== 'production') {
+      zrUtil.each(mandatoryMethods, function (method) {
+        if (!proto[method]) {
+          console.warn('Method `' + method + '` should be implemented' + (proto.type ? ' in ' + proto.type : '') + '.');
+        }
+      });
+    }
+    var superClass = this;
+    var ExtendedClass;
+    if (isESClass(superClass)) {
+      ExtendedClass = /** @class */function (_super) {
+        __extends(class_1, _super);
+        function class_1() {
+          return _super.apply(this, arguments) || this;
+        }
+        return class_1;
+      }(superClass);
+    } else {
+      // For backward compat, we both support ts class inheritance and this
+      // "extend" approach.
+      // The constructor should keep the same behavior as ts class inheritance:
+      // If this constructor/$constructor is not declared, auto invoke the super
+      // constructor.
+      // If this constructor/$constructor is declared, it is responsible for
+      // calling the super constructor.
+      ExtendedClass = function () {
+        (proto.$constructor || superClass).apply(this, arguments);
+      };
+      zrUtil.inherits(ExtendedClass, this);
+    }
+    zrUtil.extend(ExtendedClass.prototype, proto);
+    ExtendedClass[IS_EXTENDED_CLASS] = true;
+    ExtendedClass.extend = this.extend;
+    ExtendedClass.superCall = superCall;
+    ExtendedClass.superApply = superApply;
+    ExtendedClass.superClass = superClass;
+    return ExtendedClass;
+  };
+}
+function isESClass(fn) {
+  return zrUtil.isFunction(fn) && /^class\s/.test(Function.prototype.toString.call(fn));
+}
+/**
+ * A work around to both support ts extend and this extend mechanism.
+ * on sub-class.
+ * @usage
+ * ```ts
+ * class Component { ... }
+ * classUtil.enableClassExtend(Component);
+ * classUtil.enableClassManagement(Component, {registerWhenExtend: true});
+ *
+ * class Series extends Component { ... }
+ * // Without calling `markExtend`, `registerWhenExtend` will not work.
+ * Component.markExtend(Series);
+ * ```
+ */
+export function mountExtend(SubClz, SupperClz) {
+  SubClz.extend = SupperClz.extend;
+}
+// A random offset.
+var classBase = Math.round(Math.random() * 10);
+/**
+ * Implements `CheckableConstructor` for `target`.
+ * Can not use instanceof, consider different scope by
+ * cross domain or es module import in ec extensions.
+ * Mount a method "isInstance()" to Clz.
+ *
+ * @usage
+ * ```ts
+ * class Xxx {}
+ * type XxxConstructor = typeof Xxx & CheckableConstructor;
+ * enableClassCheck(Xxx as XxxConstructor)
+ * ```
+ */
+export function enableClassCheck(target) {
+  var classAttr = ['__\0is_clz', classBase++].join('_');
+  target.prototype[classAttr] = true;
+  if (process.env.NODE_ENV !== 'production') {
+    zrUtil.assert(!target.isInstance, 'The method "is" can not be defined.');
+  }
+  target.isInstance = function (obj) {
+    return !!(obj && obj[classAttr]);
+  };
+}
+// superCall should have class info, which can not be fetched from 'this'.
+// Consider this case:
+// class A has method f,
+// class B inherits class A, overrides method f, f call superApply('f'),
+// class C inherits class B, does not override method f,
+// then when method of class C is called, dead loop occurred.
+function superCall(context, methodName) {
+  var args = [];
+  for (var _i = 2; _i < arguments.length; _i++) {
+    args[_i - 2] = arguments[_i];
+  }
+  return this.superClass.prototype[methodName].apply(context, args);
+}
+function superApply(context, methodName, args) {
+  return this.superClass.prototype[methodName].apply(context, args);
+}
+/**
+ * Implements `ClassManager` for `target`
+ *
+ * @usage
+ * ```ts
+ * class Xxx {}
+ * type XxxConstructor = typeof Xxx & ClassManager
+ * enableClassManagement(Xxx as XxxConstructor);
+ * ```
+ */
+export function enableClassManagement(target) {
+  /**
+   * Component model classes
+   * key: componentType,
+   * value:
+   *     componentClass, when componentType is 'a'
+   *     or Object.<subKey, componentClass>, when componentType is 'a.b'
+   */
+  var storage = {};
+  target.registerClass = function (clz) {
+    // `type` should not be a "instance member".
+    // If using TS class, should better declared as `static type = 'series.pie'`.
+    // otherwise users have to mount `type` on prototype manually.
+    // For backward compat and enable instance visit type via `this.type`,
+    // we still support fetch `type` from prototype.
+    var componentFullType = clz.type || clz.prototype.type;
+    if (componentFullType) {
+      checkClassType(componentFullType);
+      // If only static type declared, we assign it to prototype mandatorily.
+      clz.prototype.type = componentFullType;
+      var componentTypeInfo = parseClassType(componentFullType);
+      if (!componentTypeInfo.sub) {
+        if (process.env.NODE_ENV !== 'production') {
+          if (storage[componentTypeInfo.main]) {
+            console.warn(componentTypeInfo.main + ' exists.');
+          }
+        }
+        storage[componentTypeInfo.main] = clz;
+      } else if (componentTypeInfo.sub !== IS_CONTAINER) {
+        var container = makeContainer(componentTypeInfo);
+        container[componentTypeInfo.sub] = clz;
+      }
+    }
+    return clz;
+  };
+  target.getClass = function (mainType, subType, throwWhenNotFound) {
+    var clz = storage[mainType];
+    if (clz && clz[IS_CONTAINER]) {
+      clz = subType ? clz[subType] : null;
+    }
+    if (throwWhenNotFound && !clz) {
+      throw new Error(!subType ? mainType + '.' + 'type should be specified.' : 'Component ' + mainType + '.' + (subType || '') + ' is used but not imported.');
+    }
+    return clz;
+  };
+  target.getClassesByMainType = function (componentType) {
+    var componentTypeInfo = parseClassType(componentType);
+    var result = [];
+    var obj = storage[componentTypeInfo.main];
+    if (obj && obj[IS_CONTAINER]) {
+      zrUtil.each(obj, function (o, type) {
+        type !== IS_CONTAINER && result.push(o);
+      });
+    } else {
+      result.push(obj);
+    }
+    return result;
+  };
+  target.hasClass = function (componentType) {
+    // Just consider componentType.main.
+    var componentTypeInfo = parseClassType(componentType);
+    return !!storage[componentTypeInfo.main];
+  };
+  /**
+   * @return Like ['aa', 'bb'], but can not be ['aa.xx']
+   */
+  target.getAllClassMainTypes = function () {
+    var types = [];
+    zrUtil.each(storage, function (obj, type) {
+      types.push(type);
+    });
+    return types;
+  };
+  /**
+   * If a main type is container and has sub types
+   */
+  target.hasSubTypes = function (componentType) {
+    var componentTypeInfo = parseClassType(componentType);
+    var obj = storage[componentTypeInfo.main];
+    return obj && obj[IS_CONTAINER];
+  };
+  function makeContainer(componentTypeInfo) {
+    var container = storage[componentTypeInfo.main];
+    if (!container || !container[IS_CONTAINER]) {
+      container = storage[componentTypeInfo.main] = {};
+      container[IS_CONTAINER] = true;
+    }
+    return container;
+  }
+}
+// /**
+//  * @param {string|Array.<string>} properties
+//  */
+// export function setReadOnly(obj, properties) {
+// FIXME It seems broken in IE8 simulation of IE11
+// if (!zrUtil.isArray(properties)) {
+//     properties = properties != null ? [properties] : [];
+// }
+// zrUtil.each(properties, function (prop) {
+//     let value = obj[prop];
+//     Object.defineProperty
+//         && Object.defineProperty(obj, prop, {
+//             value: value, writable: false
+//         });
+//     zrUtil.isArray(obj[prop])
+//         && Object.freeze
+//         && Object.freeze(obj[prop]);
+// });
+// }

frontend/node_modules/echarts/lib/util/component.js

@@ -0,0 +1,186 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+import { parseClassType } from './clazz.js';
+import { makePrintable } from './log.js';
+// A random offset
+var base = Math.round(Math.random() * 10);
+/**
+ * @public
+ * @param {string} type
+ * @return {string}
+ */
+export function getUID(type) {
+  // Considering the case of crossing js context,
+  // use Math.random to make id as unique as possible.
+  return [type || '', base++].join('_');
+}
+/**
+ * Implements `SubTypeDefaulterManager` for `target`.
+ */
+export function enableSubTypeDefaulter(target) {
+  var subTypeDefaulters = {};
+  target.registerSubTypeDefaulter = function (componentType, defaulter) {
+    var componentTypeInfo = parseClassType(componentType);
+    subTypeDefaulters[componentTypeInfo.main] = defaulter;
+  };
+  target.determineSubType = function (componentType, option) {
+    var type = option.type;
+    if (!type) {
+      var componentTypeMain = parseClassType(componentType).main;
+      if (target.hasSubTypes(componentType) && subTypeDefaulters[componentTypeMain]) {
+        type = subTypeDefaulters[componentTypeMain](option);
+      }
+    }
+    return type;
+  };
+}
+/**
+ * Implements `TopologicalTravelable<any>` for `entity`.
+ *
+ * Topological travel on Activity Network (Activity On Vertices).
+ * Dependencies is defined in Model.prototype.dependencies, like ['xAxis', 'yAxis'].
+ * If 'xAxis' or 'yAxis' is absent in componentTypeList, just ignore it in topology.
+ * If there is circular dependencey, Error will be thrown.
+ */
+export function enableTopologicalTravel(entity, dependencyGetter) {
+  /**
+   * @param targetNameList Target Component type list.
+   *                       Can be ['aa', 'bb', 'aa.xx']
+   * @param fullNameList By which we can build dependency graph.
+   * @param callback Params: componentType, dependencies.
+   * @param context Scope of callback.
+   */
+  entity.topologicalTravel = function (targetNameList, fullNameList, callback, context) {
+    if (!targetNameList.length) {
+      return;
+    }
+    var result = makeDepndencyGraph(fullNameList);
+    var graph = result.graph;
+    var noEntryList = result.noEntryList;
+    var targetNameSet = {};
+    zrUtil.each(targetNameList, function (name) {
+      targetNameSet[name] = true;
+    });
+    while (noEntryList.length) {
+      var currComponentType = noEntryList.pop();
+      var currVertex = graph[currComponentType];
+      var isInTargetNameSet = !!targetNameSet[currComponentType];
+      if (isInTargetNameSet) {
+        callback.call(context, currComponentType, currVertex.originalDeps.slice());
+        delete targetNameSet[currComponentType];
+      }
+      zrUtil.each(currVertex.successor, isInTargetNameSet ? removeEdgeAndAdd : removeEdge);
+    }
+    zrUtil.each(targetNameSet, function () {
+      var errMsg = '';
+      if (process.env.NODE_ENV !== 'production') {
+        errMsg = makePrintable('Circular dependency may exists: ', targetNameSet, targetNameList, fullNameList);
+      }
+      throw new Error(errMsg);
+    });
+    function removeEdge(succComponentType) {
+      graph[succComponentType].entryCount--;
+      if (graph[succComponentType].entryCount === 0) {
+        noEntryList.push(succComponentType);
+      }
+    }
+    // Consider this case: legend depends on series, and we call
+    // chart.setOption({series: [...]}), where only series is in option.
+    // If we do not have 'removeEdgeAndAdd', legendModel.mergeOption will
+    // not be called, but only sereis.mergeOption is called. Thus legend
+    // have no chance to update its local record about series (like which
+    // name of series is available in legend).
+    function removeEdgeAndAdd(succComponentType) {
+      targetNameSet[succComponentType] = true;
+      removeEdge(succComponentType);
+    }
+  };
+  function makeDepndencyGraph(fullNameList) {
+    var graph = {};
+    var noEntryList = [];
+    zrUtil.each(fullNameList, function (name) {
+      var thisItem = createDependencyGraphItem(graph, name);
+      var originalDeps = thisItem.originalDeps = dependencyGetter(name);
+      var availableDeps = getAvailableDependencies(originalDeps, fullNameList);
+      thisItem.entryCount = availableDeps.length;
+      if (thisItem.entryCount === 0) {
+        noEntryList.push(name);
+      }
+      zrUtil.each(availableDeps, function (dependentName) {
+        if (zrUtil.indexOf(thisItem.predecessor, dependentName) < 0) {
+          thisItem.predecessor.push(dependentName);
+        }
+        var thatItem = createDependencyGraphItem(graph, dependentName);
+        if (zrUtil.indexOf(thatItem.successor, dependentName) < 0) {
+          thatItem.successor.push(name);
+        }
+      });
+    });
+    return {
+      graph: graph,
+      noEntryList: noEntryList
+    };
+  }
+  function createDependencyGraphItem(graph, name) {
+    if (!graph[name]) {
+      graph[name] = {
+        predecessor: [],
+        successor: []
+      };
+    }
+    return graph[name];
+  }
+  function getAvailableDependencies(originalDeps, fullNameList) {
+    var availableDeps = [];
+    zrUtil.each(originalDeps, function (dep) {
+      zrUtil.indexOf(fullNameList, dep) >= 0 && availableDeps.push(dep);
+    });
+    return availableDeps;
+  }
+}
+export function inheritDefaultOption(superOption, subOption) {
+  // See also `model/Component.ts#getDefaultOption`
+  return zrUtil.merge(zrUtil.merge({}, superOption, true), subOption, true);
+}

frontend/node_modules/echarts/lib/util/conditionalExpression.js

@@ -0,0 +1,257 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { keys, isArray, map, isObject, isString, isRegExp, isArrayLike, hasOwn, isNumber } from 'zrender/lib/core/util.js';
+import { throwError, makePrintable } from './log.js';
+import { getRawValueParser, createFilterComparator } from '../data/helper/dataValueHelper.js';
+;
+var RELATIONAL_EXPRESSION_OP_ALIAS_MAP = {
+  value: 'eq',
+  // PENDING: not good for literal semantic?
+  '<': 'lt',
+  '<=': 'lte',
+  '>': 'gt',
+  '>=': 'gte',
+  '=': 'eq',
+  '!=': 'ne',
+  '<>': 'ne'
+  // Might be misleading for sake of the difference between '==' and '===',
+  // so don't support them.
+  // '==': 'eq',
+  // '===': 'seq',
+  // '!==': 'sne'
+  // PENDING: Whether support some common alias "ge", "le", "neq"?
+  // ge: 'gte',
+  // le: 'lte',
+  // neq: 'ne',
+};
+// type RelationalExpressionOpEvaluate = (tarVal: unknown, condVal: unknown) => boolean;
+var RegExpEvaluator = /** @class */function () {
+  function RegExpEvaluator(rVal) {
+    // Support condVal: RegExp | string
+    var condValue = this._condVal = isString(rVal) ? new RegExp(rVal) : isRegExp(rVal) ? rVal : null;
+    if (condValue == null) {
+      var errMsg = '';
+      if (process.env.NODE_ENV !== 'production') {
+        errMsg = makePrintable('Illegal regexp', rVal, 'in');
+      }
+      throwError(errMsg);
+    }
+  }
+  RegExpEvaluator.prototype.evaluate = function (lVal) {
+    var type = typeof lVal;
+    return isString(type) ? this._condVal.test(lVal) : isNumber(type) ? this._condVal.test(lVal + '') : false;
+  };
+  return RegExpEvaluator;
+}();
+var ConstConditionInternal = /** @class */function () {
+  function ConstConditionInternal() {}
+  ConstConditionInternal.prototype.evaluate = function () {
+    return this.value;
+  };
+  return ConstConditionInternal;
+}();
+var AndConditionInternal = /** @class */function () {
+  function AndConditionInternal() {}
+  AndConditionInternal.prototype.evaluate = function () {
+    var children = this.children;
+    for (var i = 0; i < children.length; i++) {
+      if (!children[i].evaluate()) {
+        return false;
+      }
+    }
+    return true;
+  };
+  return AndConditionInternal;
+}();
+var OrConditionInternal = /** @class */function () {
+  function OrConditionInternal() {}
+  OrConditionInternal.prototype.evaluate = function () {
+    var children = this.children;
+    for (var i = 0; i < children.length; i++) {
+      if (children[i].evaluate()) {
+        return true;
+      }
+    }
+    return false;
+  };
+  return OrConditionInternal;
+}();
+var NotConditionInternal = /** @class */function () {
+  function NotConditionInternal() {}
+  NotConditionInternal.prototype.evaluate = function () {
+    return !this.child.evaluate();
+  };
+  return NotConditionInternal;
+}();
+var RelationalConditionInternal = /** @class */function () {
+  function RelationalConditionInternal() {}
+  RelationalConditionInternal.prototype.evaluate = function () {
+    var needParse = !!this.valueParser;
+    // Call getValue with no `this`.
+    var getValue = this.getValue;
+    var tarValRaw = getValue(this.valueGetterParam);
+    var tarValParsed = needParse ? this.valueParser(tarValRaw) : null;
+    // Relational cond follow "and" logic internally.
+    for (var i = 0; i < this.subCondList.length; i++) {
+      if (!this.subCondList[i].evaluate(needParse ? tarValParsed : tarValRaw)) {
+        return false;
+      }
+    }
+    return true;
+  };
+  return RelationalConditionInternal;
+}();
+function parseOption(exprOption, getters) {
+  if (exprOption === true || exprOption === false) {
+    var cond = new ConstConditionInternal();
+    cond.value = exprOption;
+    return cond;
+  }
+  var errMsg = '';
+  if (!isObjectNotArray(exprOption)) {
+    if (process.env.NODE_ENV !== 'production') {
+      errMsg = makePrintable('Illegal config. Expect a plain object but actually', exprOption);
+    }
+    throwError(errMsg);
+  }
+  if (exprOption.and) {
+    return parseAndOrOption('and', exprOption, getters);
+  } else if (exprOption.or) {
+    return parseAndOrOption('or', exprOption, getters);
+  } else if (exprOption.not) {
+    return parseNotOption(exprOption, getters);
+  }
+  return parseRelationalOption(exprOption, getters);
+}
+function parseAndOrOption(op, exprOption, getters) {
+  var subOptionArr = exprOption[op];
+  var errMsg = '';
+  if (process.env.NODE_ENV !== 'production') {
+    errMsg = makePrintable('"and"/"or" condition should only be `' + op + ': [...]` and must not be empty array.', 'Illegal condition:', exprOption);
+  }
+  if (!isArray(subOptionArr)) {
+    throwError(errMsg);
+  }
+  if (!subOptionArr.length) {
+    throwError(errMsg);
+  }
+  var cond = op === 'and' ? new AndConditionInternal() : new OrConditionInternal();
+  cond.children = map(subOptionArr, function (subOption) {
+    return parseOption(subOption, getters);
+  });
+  if (!cond.children.length) {
+    throwError(errMsg);
+  }
+  return cond;
+}
+function parseNotOption(exprOption, getters) {
+  var subOption = exprOption.not;
+  var errMsg = '';
+  if (process.env.NODE_ENV !== 'production') {
+    errMsg = makePrintable('"not" condition should only be `not: {}`.', 'Illegal condition:', exprOption);
+  }
+  if (!isObjectNotArray(subOption)) {
+    throwError(errMsg);
+  }
+  var cond = new NotConditionInternal();
+  cond.child = parseOption(subOption, getters);
+  if (!cond.child) {
+    throwError(errMsg);
+  }
+  return cond;
+}
+function parseRelationalOption(exprOption, getters) {
+  var errMsg = '';
+  var valueGetterParam = getters.prepareGetValue(exprOption);
+  var subCondList = [];
+  var exprKeys = keys(exprOption);
+  var parserName = exprOption.parser;
+  var valueParser = parserName ? getRawValueParser(parserName) : null;
+  for (var i = 0; i < exprKeys.length; i++) {
+    var keyRaw = exprKeys[i];
+    if (keyRaw === 'parser' || getters.valueGetterAttrMap.get(keyRaw)) {
+      continue;
+    }
+    var op = hasOwn(RELATIONAL_EXPRESSION_OP_ALIAS_MAP, keyRaw) ? RELATIONAL_EXPRESSION_OP_ALIAS_MAP[keyRaw] : keyRaw;
+    var condValueRaw = exprOption[keyRaw];
+    var condValueParsed = valueParser ? valueParser(condValueRaw) : condValueRaw;
+    var evaluator = createFilterComparator(op, condValueParsed) || op === 'reg' && new RegExpEvaluator(condValueParsed);
+    if (!evaluator) {
+      if (process.env.NODE_ENV !== 'production') {
+        errMsg = makePrintable('Illegal relational operation: "' + keyRaw + '" in condition:', exprOption);
+      }
+      throwError(errMsg);
+    }
+    subCondList.push(evaluator);
+  }
+  if (!subCondList.length) {
+    if (process.env.NODE_ENV !== 'production') {
+      errMsg = makePrintable('Relational condition must have at least one operator.', 'Illegal condition:', exprOption);
+    }
+    // No relational operator always disabled in case of dangers result.
+    throwError(errMsg);
+  }
+  var cond = new RelationalConditionInternal();
+  cond.valueGetterParam = valueGetterParam;
+  cond.valueParser = valueParser;
+  cond.getValue = getters.getValue;
+  cond.subCondList = subCondList;
+  return cond;
+}
+function isObjectNotArray(val) {
+  return isObject(val) && !isArrayLike(val);
+}
+var ConditionalExpressionParsed = /** @class */function () {
+  function ConditionalExpressionParsed(exprOption, getters) {
+    this._cond = parseOption(exprOption, getters);
+  }
+  ConditionalExpressionParsed.prototype.evaluate = function () {
+    return this._cond.evaluate();
+  };
+  return ConditionalExpressionParsed;
+}();
+;
+export function parseConditionalExpression(exprOption, getters) {
+  return new ConditionalExpressionParsed(exprOption, getters);
+}

frontend/node_modules/echarts/lib/util/decal.js

@@ -0,0 +1,392 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import WeakMap from 'zrender/lib/core/WeakMap.js';
+import LRU from 'zrender/lib/core/LRU.js';
+import { defaults, map, isArray, isString, isNumber } from 'zrender/lib/core/util.js';
+import { getLeastCommonMultiple } from './number.js';
+import { createSymbol } from './symbol.js';
+import { brushSingle } from 'zrender/lib/canvas/graphic.js';
+import { platformApi } from 'zrender/lib/core/platform.js';
+var decalMap = new WeakMap();
+var decalCache = new LRU(100);
+var decalKeys = ['symbol', 'symbolSize', 'symbolKeepAspect', 'color', 'backgroundColor', 'dashArrayX', 'dashArrayY', 'maxTileWidth', 'maxTileHeight'];
+/**
+ * Create or update pattern image from decal options
+ *
+ * @param {InnerDecalObject | 'none'} decalObject decal options, 'none' if no decal
+ * @return {Pattern} pattern with generated image, null if no decal
+ */
+export function createOrUpdatePatternFromDecal(decalObject, api) {
+  if (decalObject === 'none') {
+    return null;
+  }
+  var dpr = api.getDevicePixelRatio();
+  var zr = api.getZr();
+  var isSVG = zr.painter.type === 'svg';
+  if (decalObject.dirty) {
+    decalMap["delete"](decalObject);
+  }
+  var oldPattern = decalMap.get(decalObject);
+  if (oldPattern) {
+    return oldPattern;
+  }
+  var decalOpt = defaults(decalObject, {
+    symbol: 'rect',
+    symbolSize: 1,
+    symbolKeepAspect: true,
+    color: 'rgba(0, 0, 0, 0.2)',
+    backgroundColor: null,
+    dashArrayX: 5,
+    dashArrayY: 5,
+    rotation: 0,
+    maxTileWidth: 512,
+    maxTileHeight: 512
+  });
+  if (decalOpt.backgroundColor === 'none') {
+    decalOpt.backgroundColor = null;
+  }
+  var pattern = {
+    repeat: 'repeat'
+  };
+  setPatternnSource(pattern);
+  pattern.rotation = decalOpt.rotation;
+  pattern.scaleX = pattern.scaleY = isSVG ? 1 : 1 / dpr;
+  decalMap.set(decalObject, pattern);
+  decalObject.dirty = false;
+  return pattern;
+  function setPatternnSource(pattern) {
+    var keys = [dpr];
+    var isValidKey = true;
+    for (var i = 0; i < decalKeys.length; ++i) {
+      var value = decalOpt[decalKeys[i]];
+      if (value != null && !isArray(value) && !isString(value) && !isNumber(value) && typeof value !== 'boolean') {
+        isValidKey = false;
+        break;
+      }
+      keys.push(value);
+    }
+    var cacheKey;
+    if (isValidKey) {
+      cacheKey = keys.join(',') + (isSVG ? '-svg' : '');
+      var cache = decalCache.get(cacheKey);
+      if (cache) {
+        isSVG ? pattern.svgElement = cache : pattern.image = cache;
+      }
+    }
+    var dashArrayX = normalizeDashArrayX(decalOpt.dashArrayX);
+    var dashArrayY = normalizeDashArrayY(decalOpt.dashArrayY);
+    var symbolArray = normalizeSymbolArray(decalOpt.symbol);
+    var lineBlockLengthsX = getLineBlockLengthX(dashArrayX);
+    var lineBlockLengthY = getLineBlockLengthY(dashArrayY);
+    var canvas = !isSVG && platformApi.createCanvas();
+    var svgRoot = isSVG && {
+      tag: 'g',
+      attrs: {},
+      key: 'dcl',
+      children: []
+    };
+    var pSize = getPatternSize();
+    var ctx;
+    if (canvas) {
+      canvas.width = pSize.width * dpr;
+      canvas.height = pSize.height * dpr;
+      ctx = canvas.getContext('2d');
+    }
+    brushDecal();
+    if (isValidKey) {
+      decalCache.put(cacheKey, canvas || svgRoot);
+    }
+    pattern.image = canvas;
+    pattern.svgElement = svgRoot;
+    pattern.svgWidth = pSize.width;
+    pattern.svgHeight = pSize.height;
+    /**
+     * Get minimum length that can make a repeatable pattern.
+     *
+     * @return {Object} pattern width and height
+     */
+    function getPatternSize() {
+      /**
+       * For example, if dash is [[3, 2], [2, 1]] for X, it looks like
+       * |---  ---  ---  ---  --- ...
+       * |-- -- -- -- -- -- -- -- ...
+       * |---  ---  ---  ---  --- ...
+       * |-- -- -- -- -- -- -- -- ...
+       * So the minimum length of X is 15,
+       * which is the least common multiple of `3 + 2` and `2 + 1`
+       * |---  ---  ---  |---  --- ...
+       * |-- -- -- -- -- |-- -- -- ...
+       */
+      var width = 1;
+      for (var i = 0, xlen = lineBlockLengthsX.length; i < xlen; ++i) {
+        width = getLeastCommonMultiple(width, lineBlockLengthsX[i]);
+      }
+      var symbolRepeats = 1;
+      for (var i = 0, xlen = symbolArray.length; i < xlen; ++i) {
+        symbolRepeats = getLeastCommonMultiple(symbolRepeats, symbolArray[i].length);
+      }
+      width *= symbolRepeats;
+      var height = lineBlockLengthY * lineBlockLengthsX.length * symbolArray.length;
+      if (process.env.NODE_ENV !== 'production') {
+        var warn = function (attrName) {
+          /* eslint-disable-next-line */
+          console.warn("Calculated decal size is greater than " + attrName + " due to decal option settings so " + attrName + " is used for the decal size. Please consider changing the decal option to make a smaller decal or set " + attrName + " to be larger to avoid incontinuity.");
+        };
+        if (width > decalOpt.maxTileWidth) {
+          warn('maxTileWidth');
+        }
+        if (height > decalOpt.maxTileHeight) {
+          warn('maxTileHeight');
+        }
+      }
+      return {
+        width: Math.max(1, Math.min(width, decalOpt.maxTileWidth)),
+        height: Math.max(1, Math.min(height, decalOpt.maxTileHeight))
+      };
+    }
+    function brushDecal() {
+      if (ctx) {
+        ctx.clearRect(0, 0, canvas.width, canvas.height);
+        if (decalOpt.backgroundColor) {
+          ctx.fillStyle = decalOpt.backgroundColor;
+          ctx.fillRect(0, 0, canvas.width, canvas.height);
+        }
+      }
+      var ySum = 0;
+      for (var i = 0; i < dashArrayY.length; ++i) {
+        ySum += dashArrayY[i];
+      }
+      if (ySum <= 0) {
+        // dashArrayY is 0, draw nothing
+        return;
+      }
+      var y = -lineBlockLengthY;
+      var yId = 0;
+      var yIdTotal = 0;
+      var xId0 = 0;
+      while (y < pSize.height) {
+        if (yId % 2 === 0) {
+          var symbolYId = yIdTotal / 2 % symbolArray.length;
+          var x = 0;
+          var xId1 = 0;
+          var xId1Total = 0;
+          while (x < pSize.width * 2) {
+            var xSum = 0;
+            for (var i = 0; i < dashArrayX[xId0].length; ++i) {
+              xSum += dashArrayX[xId0][i];
+            }
+            if (xSum <= 0) {
+              // Skip empty line
+              break;
+            }
+            // E.g., [15, 5, 20, 5] draws only for 15 and 20
+            if (xId1 % 2 === 0) {
+              var size = (1 - decalOpt.symbolSize) * 0.5;
+              var left = x + dashArrayX[xId0][xId1] * size;
+              var top_1 = y + dashArrayY[yId] * size;
+              var width = dashArrayX[xId0][xId1] * decalOpt.symbolSize;
+              var height = dashArrayY[yId] * decalOpt.symbolSize;
+              var symbolXId = xId1Total / 2 % symbolArray[symbolYId].length;
+              brushSymbol(left, top_1, width, height, symbolArray[symbolYId][symbolXId]);
+            }
+            x += dashArrayX[xId0][xId1];
+            ++xId1Total;
+            ++xId1;
+            if (xId1 === dashArrayX[xId0].length) {
+              xId1 = 0;
+            }
+          }
+          ++xId0;
+          if (xId0 === dashArrayX.length) {
+            xId0 = 0;
+          }
+        }
+        y += dashArrayY[yId];
+        ++yIdTotal;
+        ++yId;
+        if (yId === dashArrayY.length) {
+          yId = 0;
+        }
+      }
+      function brushSymbol(x, y, width, height, symbolType) {
+        var scale = isSVG ? 1 : dpr;
+        var symbol = createSymbol(symbolType, x * scale, y * scale, width * scale, height * scale, decalOpt.color, decalOpt.symbolKeepAspect);
+        if (isSVG) {
+          var symbolVNode = zr.painter.renderOneToVNode(symbol);
+          if (symbolVNode) {
+            svgRoot.children.push(symbolVNode);
+          }
+        } else {
+          // Paint to canvas for all other renderers.
+          brushSingle(ctx, symbol);
+        }
+      }
+    }
+  }
+}
+/**
+ * Convert symbol array into normalized array
+ *
+ * @param {string | (string | string[])[]} symbol symbol input
+ * @return {string[][]} normolized symbol array
+ */
+function normalizeSymbolArray(symbol) {
+  if (!symbol || symbol.length === 0) {
+    return [['rect']];
+  }
+  if (isString(symbol)) {
+    return [[symbol]];
+  }
+  var isAllString = true;
+  for (var i = 0; i < symbol.length; ++i) {
+    if (!isString(symbol[i])) {
+      isAllString = false;
+      break;
+    }
+  }
+  if (isAllString) {
+    return normalizeSymbolArray([symbol]);
+  }
+  var result = [];
+  for (var i = 0; i < symbol.length; ++i) {
+    if (isString(symbol[i])) {
+      result.push([symbol[i]]);
+    } else {
+      result.push(symbol[i]);
+    }
+  }
+  return result;
+}
+/**
+ * Convert dash input into dashArray
+ *
+ * @param {DecalDashArrayX} dash dash input
+ * @return {number[][]} normolized dash array
+ */
+function normalizeDashArrayX(dash) {
+  if (!dash || dash.length === 0) {
+    return [[0, 0]];
+  }
+  if (isNumber(dash)) {
+    var dashValue = Math.ceil(dash);
+    return [[dashValue, dashValue]];
+  }
+  /**
+   * [20, 5] should be normalized into [[20, 5]],
+   * while [20, [5, 10]] should be normalized into [[20, 20], [5, 10]]
+   */
+  var isAllNumber = true;
+  for (var i = 0; i < dash.length; ++i) {
+    if (!isNumber(dash[i])) {
+      isAllNumber = false;
+      break;
+    }
+  }
+  if (isAllNumber) {
+    return normalizeDashArrayX([dash]);
+  }
+  var result = [];
+  for (var i = 0; i < dash.length; ++i) {
+    if (isNumber(dash[i])) {
+      var dashValue = Math.ceil(dash[i]);
+      result.push([dashValue, dashValue]);
+    } else {
+      var dashValue = map(dash[i], function (n) {
+        return Math.ceil(n);
+      });
+      if (dashValue.length % 2 === 1) {
+        // [4, 2, 1] means |----  -    -- |----  -    -- |
+        // so normalize it to be [4, 2, 1, 4, 2, 1]
+        result.push(dashValue.concat(dashValue));
+      } else {
+        result.push(dashValue);
+      }
+    }
+  }
+  return result;
+}
+/**
+ * Convert dash input into dashArray
+ *
+ * @param {DecalDashArrayY} dash dash input
+ * @return {number[]} normolized dash array
+ */
+function normalizeDashArrayY(dash) {
+  if (!dash || typeof dash === 'object' && dash.length === 0) {
+    return [0, 0];
+  }
+  if (isNumber(dash)) {
+    var dashValue_1 = Math.ceil(dash);
+    return [dashValue_1, dashValue_1];
+  }
+  var dashValue = map(dash, function (n) {
+    return Math.ceil(n);
+  });
+  return dash.length % 2 ? dashValue.concat(dashValue) : dashValue;
+}
+/**
+ * Get block length of each line. A block is the length of dash line and space.
+ * For example, a line with [4, 1] has a dash line of 4 and a space of 1 after
+ * that, so the block length of this line is 5.
+ *
+ * @param {number[][]} dash dash array of X or Y
+ * @return {number[]} block length of each line
+ */
+function getLineBlockLengthX(dash) {
+  return map(dash, function (line) {
+    return getLineBlockLengthY(line);
+  });
+}
+function getLineBlockLengthY(dash) {
+  var blockLength = 0;
+  for (var i = 0; i < dash.length; ++i) {
+    blockLength += dash[i];
+  }
+  if (dash.length % 2 === 1) {
+    // [4, 2, 1] means |----  -    -- |----  -    -- |
+    // So total length is (4 + 2 + 1) * 2
+    return blockLength * 2;
+  }
+  return blockLength;
+}

frontend/node_modules/echarts/lib/util/event.js

@@ -0,0 +1,56 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+export function findEventDispatcher(target, det, returnFirstMatch) {
+  var found;
+  while (target) {
+    if (det(target)) {
+      found = target;
+      if (returnFirstMatch) {
+        break;
+      }
+    }
+    target = target.__hostTarget || target.parent;
+  }
+  return found;
+}

frontend/node_modules/echarts/lib/util/format.js

@@ -0,0 +1,240 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+import { encodeHTML } from 'zrender/lib/core/dom.js';
+import { parseDate, isNumeric, numericToNumber } from './number.js';
+import { format as timeFormat, pad } from './time.js';
+import { deprecateReplaceLog } from './log.js';
+/**
+ * Add a comma each three digit.
+ */
+export function addCommas(x) {
+  if (!isNumeric(x)) {
+    return zrUtil.isString(x) ? x : '-';
+  }
+  var parts = (x + '').split('.');
+  return parts[0].replace(/(\d{1,3})(?=(?:\d{3})+(?!\d))/g, '$1,') + (parts.length > 1 ? '.' + parts[1] : '');
+}
+export function toCamelCase(str, upperCaseFirst) {
+  str = (str || '').toLowerCase().replace(/-(.)/g, function (match, group1) {
+    return group1.toUpperCase();
+  });
+  if (upperCaseFirst && str) {
+    str = str.charAt(0).toUpperCase() + str.slice(1);
+  }
+  return str;
+}
+export var normalizeCssArray = zrUtil.normalizeCssArray;
+export { encodeHTML };
+/**
+ * Make value user readable for tooltip and label.
+ * "User readable":
+ *     Try to not print programmer-specific text like NaN, Infinity, null, undefined.
+ *     Avoid to display an empty string, which users can not recognize there is
+ *     a value and it might look like a bug.
+ */
+export function makeValueReadable(value, valueType, useUTC) {
+  var USER_READABLE_DEFUALT_TIME_PATTERN = '{yyyy}-{MM}-{dd} {HH}:{mm}:{ss}';
+  function stringToUserReadable(str) {
+    return str && zrUtil.trim(str) ? str : '-';
+  }
+  function isNumberUserReadable(num) {
+    return !!(num != null && !isNaN(num) && isFinite(num));
+  }
+  var isTypeTime = valueType === 'time';
+  var isValueDate = value instanceof Date;
+  if (isTypeTime || isValueDate) {
+    var date = isTypeTime ? parseDate(value) : value;
+    if (!isNaN(+date)) {
+      return timeFormat(date, USER_READABLE_DEFUALT_TIME_PATTERN, useUTC);
+    } else if (isValueDate) {
+      return '-';
+    }
+    // In other cases, continue to try to display the value in the following code.
+  }
+  if (valueType === 'ordinal') {
+    return zrUtil.isStringSafe(value) ? stringToUserReadable(value) : zrUtil.isNumber(value) ? isNumberUserReadable(value) ? value + '' : '-' : '-';
+  }
+  // By default.
+  var numericResult = numericToNumber(value);
+  return isNumberUserReadable(numericResult) ? addCommas(numericResult) : zrUtil.isStringSafe(value) ? stringToUserReadable(value) : typeof value === 'boolean' ? value + '' : '-';
+}
+var TPL_VAR_ALIAS = ['a', 'b', 'c', 'd', 'e', 'f', 'g'];
+var wrapVar = function (varName, seriesIdx) {
+  return '{' + varName + (seriesIdx == null ? '' : seriesIdx) + '}';
+};
+/**
+ * Template formatter
+ * @param {Array.<Object>|Object} paramsList
+ */
+export function formatTpl(tpl, paramsList, encode) {
+  if (!zrUtil.isArray(paramsList)) {
+    paramsList = [paramsList];
+  }
+  var seriesLen = paramsList.length;
+  if (!seriesLen) {
+    return '';
+  }
+  var $vars = paramsList[0].$vars || [];
+  for (var i = 0; i < $vars.length; i++) {
+    var alias = TPL_VAR_ALIAS[i];
+    tpl = tpl.replace(wrapVar(alias), wrapVar(alias, 0));
+  }
+  for (var seriesIdx = 0; seriesIdx < seriesLen; seriesIdx++) {
+    for (var k = 0; k < $vars.length; k++) {
+      var val = paramsList[seriesIdx][$vars[k]];
+      tpl = tpl.replace(wrapVar(TPL_VAR_ALIAS[k], seriesIdx), encode ? encodeHTML(val) : val);
+    }
+  }
+  return tpl;
+}
+/**
+ * simple Template formatter
+ */
+export function formatTplSimple(tpl, param, encode) {
+  zrUtil.each(param, function (value, key) {
+    tpl = tpl.replace('{' + key + '}', encode ? encodeHTML(value) : value);
+  });
+  return tpl;
+}
+export function getTooltipMarker(inOpt, extraCssText) {
+  var opt = zrUtil.isString(inOpt) ? {
+    color: inOpt,
+    extraCssText: extraCssText
+  } : inOpt || {};
+  var color = opt.color;
+  var type = opt.type;
+  extraCssText = opt.extraCssText;
+  var renderMode = opt.renderMode || 'html';
+  if (!color) {
+    return '';
+  }
+  if (renderMode === 'html') {
+    return type === 'subItem' ? '<span style="display:inline-block;vertical-align:middle;margin-right:8px;margin-left:3px;' + 'border-radius:4px;width:4px;height:4px;background-color:'
+    // Only support string
+    + encodeHTML(color) + ';' + (extraCssText || '') + '"></span>' : '<span style="display:inline-block;margin-right:4px;' + 'border-radius:10px;width:10px;height:10px;background-color:' + encodeHTML(color) + ';' + (extraCssText || '') + '"></span>';
+  } else {
+    // Should better not to auto generate style name by auto-increment number here.
+    // Because this util is usually called in tooltip formatter, which is probably
+    // called repeatedly when mouse move and the auto-increment number increases fast.
+    // Users can make their own style name by theirselves, make it unique and readable.
+    var markerId = opt.markerId || 'markerX';
+    return {
+      renderMode: renderMode,
+      content: '{' + markerId + '|}  ',
+      style: type === 'subItem' ? {
+        width: 4,
+        height: 4,
+        borderRadius: 2,
+        backgroundColor: color
+      } : {
+        width: 10,
+        height: 10,
+        borderRadius: 5,
+        backgroundColor: color
+      }
+    };
+  }
+}
+/**
+ * @deprecated Use `time/format` instead.
+ * ISO Date format
+ * @param {string} tpl
+ * @param {number} value
+ * @param {boolean} [isUTC=false] Default in local time.
+ *           see `module:echarts/scale/Time`
+ *           and `module:echarts/util/number#parseDate`.
+ * @inner
+ */
+export function formatTime(tpl, value, isUTC) {
+  if (process.env.NODE_ENV !== 'production') {
+    deprecateReplaceLog('echarts.format.formatTime', 'echarts.time.format');
+  }
+  if (tpl === 'week' || tpl === 'month' || tpl === 'quarter' || tpl === 'half-year' || tpl === 'year') {
+    tpl = 'MM-dd\nyyyy';
+  }
+  var date = parseDate(value);
+  var getUTC = isUTC ? 'getUTC' : 'get';
+  var y = date[getUTC + 'FullYear']();
+  var M = date[getUTC + 'Month']() + 1;
+  var d = date[getUTC + 'Date']();
+  var h = date[getUTC + 'Hours']();
+  var m = date[getUTC + 'Minutes']();
+  var s = date[getUTC + 'Seconds']();
+  var S = date[getUTC + 'Milliseconds']();
+  tpl = tpl.replace('MM', pad(M, 2)).replace('M', M).replace('yyyy', y).replace('yy', pad(y % 100 + '', 2)).replace('dd', pad(d, 2)).replace('d', d).replace('hh', pad(h, 2)).replace('h', h).replace('mm', pad(m, 2)).replace('m', m).replace('ss', pad(s, 2)).replace('s', s).replace('SSS', pad(S, 3));
+  return tpl;
+}
+/**
+ * Capital first
+ * @param {string} str
+ * @return {string}
+ */
+export function capitalFirst(str) {
+  return str ? str.charAt(0).toUpperCase() + str.substr(1) : str;
+}
+/**
+ * @return Never be null/undefined.
+ */
+export function convertToColorString(color, defaultColor) {
+  defaultColor = defaultColor || 'transparent';
+  return zrUtil.isString(color) ? color : zrUtil.isObject(color) ? color.colorStops && (color.colorStops[0] || {}).color || defaultColor : defaultColor;
+}
+export { truncateText } from 'zrender/lib/graphic/helper/parseText.js';
+/**
+ * open new tab
+ * @param link url
+ * @param target blank or self
+ */
+export function windowOpen(link, target) {
+  /* global window */
+  if (target === '_blank' || target === 'blank') {
+    var blank = window.open();
+    blank.opener = null;
+    blank.location.href = link;
+  } else {
+    window.open(link, target);
+  }
+}
+export { getTextRect } from '../legacy/getTextRect.js';

frontend/node_modules/echarts/lib/util/graphic.js

@@ -0,0 +1,522 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as pathTool from 'zrender/lib/tool/path.js';
+import * as matrix from 'zrender/lib/core/matrix.js';
+import * as vector from 'zrender/lib/core/vector.js';
+import Path from 'zrender/lib/graphic/Path.js';
+import Transformable from 'zrender/lib/core/Transformable.js';
+import ZRImage from 'zrender/lib/graphic/Image.js';
+import Group from 'zrender/lib/graphic/Group.js';
+import ZRText from 'zrender/lib/graphic/Text.js';
+import Circle from 'zrender/lib/graphic/shape/Circle.js';
+import Ellipse from 'zrender/lib/graphic/shape/Ellipse.js';
+import Sector from 'zrender/lib/graphic/shape/Sector.js';
+import Ring from 'zrender/lib/graphic/shape/Ring.js';
+import Polygon from 'zrender/lib/graphic/shape/Polygon.js';
+import Polyline from 'zrender/lib/graphic/shape/Polyline.js';
+import Rect from 'zrender/lib/graphic/shape/Rect.js';
+import Line from 'zrender/lib/graphic/shape/Line.js';
+import BezierCurve from 'zrender/lib/graphic/shape/BezierCurve.js';
+import Arc from 'zrender/lib/graphic/shape/Arc.js';
+import CompoundPath from 'zrender/lib/graphic/CompoundPath.js';
+import LinearGradient from 'zrender/lib/graphic/LinearGradient.js';
+import RadialGradient from 'zrender/lib/graphic/RadialGradient.js';
+import BoundingRect from 'zrender/lib/core/BoundingRect.js';
+import OrientedBoundingRect from 'zrender/lib/core/OrientedBoundingRect.js';
+import Point from 'zrender/lib/core/Point.js';
+import IncrementalDisplayable from 'zrender/lib/graphic/IncrementalDisplayable.js';
+import * as subPixelOptimizeUtil from 'zrender/lib/graphic/helper/subPixelOptimize.js';
+import { extend, isArrayLike, map, defaults, isString, keys, each, hasOwn, isArray } from 'zrender/lib/core/util.js';
+import { getECData } from './innerStore.js';
+import { updateProps, initProps, removeElement, removeElementWithFadeOut, isElementRemoved } from '../animation/basicTransition.js';
+/**
+ * @deprecated export for compatitable reason
+ */
+export { updateProps, initProps, removeElement, removeElementWithFadeOut, isElementRemoved };
+var mathMax = Math.max;
+var mathMin = Math.min;
+var _customShapeMap = {};
+/**
+ * Extend shape with parameters
+ */
+export function extendShape(opts) {
+  return Path.extend(opts);
+}
+var extendPathFromString = pathTool.extendFromString;
+/**
+ * Extend path
+ */
+export function extendPath(pathData, opts) {
+  return extendPathFromString(pathData, opts);
+}
+/**
+ * Register a user defined shape.
+ * The shape class can be fetched by `getShapeClass`
+ * This method will overwrite the registered shapes, including
+ * the registered built-in shapes, if using the same `name`.
+ * The shape can be used in `custom series` and
+ * `graphic component` by declaring `{type: name}`.
+ *
+ * @param name
+ * @param ShapeClass Can be generated by `extendShape`.
+ */
+export function registerShape(name, ShapeClass) {
+  _customShapeMap[name] = ShapeClass;
+}
+/**
+ * Find shape class registered by `registerShape`. Usually used in
+ * fetching user defined shape.
+ *
+ * [Caution]:
+ * (1) This method **MUST NOT be used inside echarts !!!**, unless it is prepared
+ * to use user registered shapes.
+ * Because the built-in shape (see `getBuiltInShape`) will be registered by
+ * `registerShape` by default. That enables users to get both built-in
+ * shapes as well as the shapes belonging to themsleves. But users can overwrite
+ * the built-in shapes by using names like 'circle', 'rect' via calling
+ * `registerShape`. So the echarts inner featrues should not fetch shapes from here
+ * in case that it is overwritten by users, except that some features, like
+ * `custom series`, `graphic component`, do it deliberately.
+ *
+ * (2) In the features like `custom series`, `graphic component`, the user input
+ * `{tpye: 'xxx'}` does not only specify shapes but also specify other graphic
+ * elements like `'group'`, `'text'`, `'image'` or event `'path'`. Those names
+ * are reserved names, that is, if some user registers a shape named `'image'`,
+ * the shape will not be used. If we intending to add some more reserved names
+ * in feature, that might bring break changes (disable some existing user shape
+ * names). But that case probably rarely happens. So we don't make more mechanism
+ * to resolve this issue here.
+ *
+ * @param name
+ * @return The shape class. If not found, return nothing.
+ */
+export function getShapeClass(name) {
+  if (_customShapeMap.hasOwnProperty(name)) {
+    return _customShapeMap[name];
+  }
+}
+/**
+ * Create a path element from path data string
+ * @param pathData
+ * @param opts
+ * @param rect
+ * @param layout 'center' or 'cover' default to be cover
+ */
+export function makePath(pathData, opts, rect, layout) {
+  var path = pathTool.createFromString(pathData, opts);
+  if (rect) {
+    if (layout === 'center') {
+      rect = centerGraphic(rect, path.getBoundingRect());
+    }
+    resizePath(path, rect);
+  }
+  return path;
+}
+/**
+ * Create a image element from image url
+ * @param imageUrl image url
+ * @param opts options
+ * @param rect constrain rect
+ * @param layout 'center' or 'cover'. Default to be 'cover'
+ */
+export function makeImage(imageUrl, rect, layout) {
+  var zrImg = new ZRImage({
+    style: {
+      image: imageUrl,
+      x: rect.x,
+      y: rect.y,
+      width: rect.width,
+      height: rect.height
+    },
+    onload: function (img) {
+      if (layout === 'center') {
+        var boundingRect = {
+          width: img.width,
+          height: img.height
+        };
+        zrImg.setStyle(centerGraphic(rect, boundingRect));
+      }
+    }
+  });
+  return zrImg;
+}
+/**
+ * Get position of centered element in bounding box.
+ *
+ * @param  rect         element local bounding box
+ * @param  boundingRect constraint bounding box
+ * @return element position containing x, y, width, and height
+ */
+function centerGraphic(rect, boundingRect) {
+  // Set rect to center, keep width / height ratio.
+  var aspect = boundingRect.width / boundingRect.height;
+  var width = rect.height * aspect;
+  var height;
+  if (width <= rect.width) {
+    height = rect.height;
+  } else {
+    width = rect.width;
+    height = width / aspect;
+  }
+  var cx = rect.x + rect.width / 2;
+  var cy = rect.y + rect.height / 2;
+  return {
+    x: cx - width / 2,
+    y: cy - height / 2,
+    width: width,
+    height: height
+  };
+}
+export var mergePath = pathTool.mergePath;
+/**
+ * Resize a path to fit the rect
+ * @param path
+ * @param rect
+ */
+export function resizePath(path, rect) {
+  if (!path.applyTransform) {
+    return;
+  }
+  var pathRect = path.getBoundingRect();
+  var m = pathRect.calculateTransform(rect);
+  path.applyTransform(m);
+}
+/**
+ * Sub pixel optimize line for canvas
+ */
+export function subPixelOptimizeLine(shape, lineWidth) {
+  subPixelOptimizeUtil.subPixelOptimizeLine(shape, shape, {
+    lineWidth: lineWidth
+  });
+  return shape;
+}
+/**
+ * Sub pixel optimize rect for canvas
+ */
+export function subPixelOptimizeRect(param) {
+  subPixelOptimizeUtil.subPixelOptimizeRect(param.shape, param.shape, param.style);
+  return param;
+}
+/**
+ * Sub pixel optimize for canvas
+ *
+ * @param position Coordinate, such as x, y
+ * @param lineWidth Should be nonnegative integer.
+ * @param positiveOrNegative Default false (negative).
+ * @return Optimized position.
+ */
+export var subPixelOptimize = subPixelOptimizeUtil.subPixelOptimize;
+/**
+ * Get transform matrix of target (param target),
+ * in coordinate of its ancestor (param ancestor)
+ *
+ * @param target
+ * @param [ancestor]
+ */
+export function getTransform(target, ancestor) {
+  var mat = matrix.identity([]);
+  while (target && target !== ancestor) {
+    matrix.mul(mat, target.getLocalTransform(), mat);
+    target = target.parent;
+  }
+  return mat;
+}
+/**
+ * Apply transform to an vertex.
+ * @param target [x, y]
+ * @param transform Can be:
+ *      + Transform matrix: like [1, 0, 0, 1, 0, 0]
+ *      + {position, rotation, scale}, the same as `zrender/Transformable`.
+ * @param invert Whether use invert matrix.
+ * @return [x, y]
+ */
+export function applyTransform(target, transform, invert) {
+  if (transform && !isArrayLike(transform)) {
+    transform = Transformable.getLocalTransform(transform);
+  }
+  if (invert) {
+    transform = matrix.invert([], transform);
+  }
+  return vector.applyTransform([], target, transform);
+}
+/**
+ * @param direction 'left' 'right' 'top' 'bottom'
+ * @param transform Transform matrix: like [1, 0, 0, 1, 0, 0]
+ * @param invert Whether use invert matrix.
+ * @return Transformed direction. 'left' 'right' 'top' 'bottom'
+ */
+export function transformDirection(direction, transform, invert) {
+  // Pick a base, ensure that transform result will not be (0, 0).
+  var hBase = transform[4] === 0 || transform[5] === 0 || transform[0] === 0 ? 1 : Math.abs(2 * transform[4] / transform[0]);
+  var vBase = transform[4] === 0 || transform[5] === 0 || transform[2] === 0 ? 1 : Math.abs(2 * transform[4] / transform[2]);
+  var vertex = [direction === 'left' ? -hBase : direction === 'right' ? hBase : 0, direction === 'top' ? -vBase : direction === 'bottom' ? vBase : 0];
+  vertex = applyTransform(vertex, transform, invert);
+  return Math.abs(vertex[0]) > Math.abs(vertex[1]) ? vertex[0] > 0 ? 'right' : 'left' : vertex[1] > 0 ? 'bottom' : 'top';
+}
+function isNotGroup(el) {
+  return !el.isGroup;
+}
+function isPath(el) {
+  return el.shape != null;
+}
+/**
+ * Apply group transition animation from g1 to g2.
+ * If no animatableModel, no animation.
+ */
+export function groupTransition(g1, g2, animatableModel) {
+  if (!g1 || !g2) {
+    return;
+  }
+  function getElMap(g) {
+    var elMap = {};
+    g.traverse(function (el) {
+      if (isNotGroup(el) && el.anid) {
+        elMap[el.anid] = el;
+      }
+    });
+    return elMap;
+  }
+  function getAnimatableProps(el) {
+    var obj = {
+      x: el.x,
+      y: el.y,
+      rotation: el.rotation
+    };
+    if (isPath(el)) {
+      obj.shape = extend({}, el.shape);
+    }
+    return obj;
+  }
+  var elMap1 = getElMap(g1);
+  g2.traverse(function (el) {
+    if (isNotGroup(el) && el.anid) {
+      var oldEl = elMap1[el.anid];
+      if (oldEl) {
+        var newProp = getAnimatableProps(el);
+        el.attr(getAnimatableProps(oldEl));
+        updateProps(el, newProp, animatableModel, getECData(el).dataIndex);
+      }
+    }
+  });
+}
+export function clipPointsByRect(points, rect) {
+  // FIXME: This way might be incorrect when graphic clipped by a corner
+  // and when element has a border.
+  return map(points, function (point) {
+    var x = point[0];
+    x = mathMax(x, rect.x);
+    x = mathMin(x, rect.x + rect.width);
+    var y = point[1];
+    y = mathMax(y, rect.y);
+    y = mathMin(y, rect.y + rect.height);
+    return [x, y];
+  });
+}
+/**
+ * Return a new clipped rect. If rect size are negative, return undefined.
+ */
+export function clipRectByRect(targetRect, rect) {
+  var x = mathMax(targetRect.x, rect.x);
+  var x2 = mathMin(targetRect.x + targetRect.width, rect.x + rect.width);
+  var y = mathMax(targetRect.y, rect.y);
+  var y2 = mathMin(targetRect.y + targetRect.height, rect.y + rect.height);
+  // If the total rect is cliped, nothing, including the border,
+  // should be painted. So return undefined.
+  if (x2 >= x && y2 >= y) {
+    return {
+      x: x,
+      y: y,
+      width: x2 - x,
+      height: y2 - y
+    };
+  }
+}
+export function createIcon(iconStr,
+// Support 'image://' or 'path://' or direct svg path.
+opt, rect) {
+  var innerOpts = extend({
+    rectHover: true
+  }, opt);
+  var style = innerOpts.style = {
+    strokeNoScale: true
+  };
+  rect = rect || {
+    x: -1,
+    y: -1,
+    width: 2,
+    height: 2
+  };
+  if (iconStr) {
+    return iconStr.indexOf('image://') === 0 ? (style.image = iconStr.slice(8), defaults(style, rect), new ZRImage(innerOpts)) : makePath(iconStr.replace('path://', ''), innerOpts, rect, 'center');
+  }
+}
+/**
+ * Return `true` if the given line (line `a`) and the given polygon
+ * are intersect.
+ * Note that we do not count colinear as intersect here because no
+ * requirement for that. We could do that if required in future.
+ */
+export function linePolygonIntersect(a1x, a1y, a2x, a2y, points) {
+  for (var i = 0, p2 = points[points.length - 1]; i < points.length; i++) {
+    var p = points[i];
+    if (lineLineIntersect(a1x, a1y, a2x, a2y, p[0], p[1], p2[0], p2[1])) {
+      return true;
+    }
+    p2 = p;
+  }
+}
+/**
+ * Return `true` if the given two lines (line `a` and line `b`)
+ * are intersect.
+ * Note that we do not count colinear as intersect here because no
+ * requirement for that. We could do that if required in future.
+ */
+export function lineLineIntersect(a1x, a1y, a2x, a2y, b1x, b1y, b2x, b2y) {
+  // let `vec_m` to be `vec_a2 - vec_a1` and `vec_n` to be `vec_b2 - vec_b1`.
+  var mx = a2x - a1x;
+  var my = a2y - a1y;
+  var nx = b2x - b1x;
+  var ny = b2y - b1y;
+  // `vec_m` and `vec_n` are parallel iff
+  //     existing `k` such that `vec_m = k · vec_n`, equivalent to `vec_m X vec_n = 0`.
+  var nmCrossProduct = crossProduct2d(nx, ny, mx, my);
+  if (nearZero(nmCrossProduct)) {
+    return false;
+  }
+  // `vec_m` and `vec_n` are intersect iff
+  //     existing `p` and `q` in [0, 1] such that `vec_a1 + p * vec_m = vec_b1 + q * vec_n`,
+  //     such that `q = ((vec_a1 - vec_b1) X vec_m) / (vec_n X vec_m)`
+  //           and `p = ((vec_a1 - vec_b1) X vec_n) / (vec_n X vec_m)`.
+  var b1a1x = a1x - b1x;
+  var b1a1y = a1y - b1y;
+  var q = crossProduct2d(b1a1x, b1a1y, mx, my) / nmCrossProduct;
+  if (q < 0 || q > 1) {
+    return false;
+  }
+  var p = crossProduct2d(b1a1x, b1a1y, nx, ny) / nmCrossProduct;
+  if (p < 0 || p > 1) {
+    return false;
+  }
+  return true;
+}
+/**
+ * Cross product of 2-dimension vector.
+ */
+function crossProduct2d(x1, y1, x2, y2) {
+  return x1 * y2 - x2 * y1;
+}
+function nearZero(val) {
+  return val <= 1e-6 && val >= -1e-6;
+}
+export function setTooltipConfig(opt) {
+  var itemTooltipOption = opt.itemTooltipOption;
+  var componentModel = opt.componentModel;
+  var itemName = opt.itemName;
+  var itemTooltipOptionObj = isString(itemTooltipOption) ? {
+    formatter: itemTooltipOption
+  } : itemTooltipOption;
+  var mainType = componentModel.mainType;
+  var componentIndex = componentModel.componentIndex;
+  var formatterParams = {
+    componentType: mainType,
+    name: itemName,
+    $vars: ['name']
+  };
+  formatterParams[mainType + 'Index'] = componentIndex;
+  var formatterParamsExtra = opt.formatterParamsExtra;
+  if (formatterParamsExtra) {
+    each(keys(formatterParamsExtra), function (key) {
+      if (!hasOwn(formatterParams, key)) {
+        formatterParams[key] = formatterParamsExtra[key];
+        formatterParams.$vars.push(key);
+      }
+    });
+  }
+  var ecData = getECData(opt.el);
+  ecData.componentMainType = mainType;
+  ecData.componentIndex = componentIndex;
+  ecData.tooltipConfig = {
+    name: itemName,
+    option: defaults({
+      content: itemName,
+      encodeHTMLContent: true,
+      formatterParams: formatterParams
+    }, itemTooltipOptionObj)
+  };
+}
+function traverseElement(el, cb) {
+  var stopped;
+  // TODO
+  // Polyfill for fixing zrender group traverse don't visit it's root issue.
+  if (el.isGroup) {
+    stopped = cb(el);
+  }
+  if (!stopped) {
+    el.traverse(cb);
+  }
+}
+export function traverseElements(els, cb) {
+  if (els) {
+    if (isArray(els)) {
+      for (var i = 0; i < els.length; i++) {
+        traverseElement(els[i], cb);
+      }
+    } else {
+      traverseElement(els, cb);
+    }
+  }
+}
+// Register built-in shapes. These shapes might be overwritten
+// by users, although we do not recommend that.
+registerShape('circle', Circle);
+registerShape('ellipse', Ellipse);
+registerShape('sector', Sector);
+registerShape('ring', Ring);
+registerShape('polygon', Polygon);
+registerShape('polyline', Polyline);
+registerShape('rect', Rect);
+registerShape('line', Line);
+registerShape('bezierCurve', BezierCurve);
+registerShape('arc', Arc);
+export { Group, ZRImage as Image, ZRText as Text, Circle, Ellipse, Sector, Ring, Polygon, Polyline, Rect, Line, BezierCurve, Arc, IncrementalDisplayable, CompoundPath, LinearGradient, RadialGradient, BoundingRect, OrientedBoundingRect, Point, Path };

frontend/node_modules/echarts/lib/util/innerStore.js

@@ -0,0 +1,66 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { makeInner } from './model.js';
+export var getECData = makeInner();
+export var setCommonECData = function (seriesIndex, dataType, dataIdx, el) {
+  if (el) {
+    var ecData = getECData(el);
+    // Add data index and series index for indexing the data by element
+    // Useful in tooltip
+    ecData.dataIndex = dataIdx;
+    ecData.dataType = dataType;
+    ecData.seriesIndex = seriesIndex;
+    ecData.ssrType = 'chart';
+    // TODO: not store dataIndex on children.
+    if (el.type === 'group') {
+      el.traverse(function (child) {
+        var childECData = getECData(child);
+        childECData.seriesIndex = seriesIndex;
+        childECData.dataIndex = dataIdx;
+        childECData.dataType = dataType;
+        childECData.ssrType = 'chart';
+      });
+    }
+  }
+};

frontend/node_modules/echarts/lib/util/layout.js

@@ -0,0 +1,449 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+// Layout helpers for each component positioning
+import * as zrUtil from 'zrender/lib/core/util.js';
+import BoundingRect from 'zrender/lib/core/BoundingRect.js';
+import { parsePercent } from './number.js';
+import * as formatUtil from './format.js';
+var each = zrUtil.each;
+/**
+ * @public
+ */
+export var LOCATION_PARAMS = ['left', 'right', 'top', 'bottom', 'width', 'height'];
+/**
+ * @public
+ */
+export var HV_NAMES = [['width', 'left', 'right'], ['height', 'top', 'bottom']];
+function boxLayout(orient, group, gap, maxWidth, maxHeight) {
+  var x = 0;
+  var y = 0;
+  if (maxWidth == null) {
+    maxWidth = Infinity;
+  }
+  if (maxHeight == null) {
+    maxHeight = Infinity;
+  }
+  var currentLineMaxSize = 0;
+  group.eachChild(function (child, idx) {
+    var rect = child.getBoundingRect();
+    var nextChild = group.childAt(idx + 1);
+    var nextChildRect = nextChild && nextChild.getBoundingRect();
+    var nextX;
+    var nextY;
+    if (orient === 'horizontal') {
+      var moveX = rect.width + (nextChildRect ? -nextChildRect.x + rect.x : 0);
+      nextX = x + moveX;
+      // Wrap when width exceeds maxWidth or meet a `newline` group
+      // FIXME compare before adding gap?
+      if (nextX > maxWidth || child.newline) {
+        x = 0;
+        nextX = moveX;
+        y += currentLineMaxSize + gap;
+        currentLineMaxSize = rect.height;
+      } else {
+        // FIXME: consider rect.y is not `0`?
+        currentLineMaxSize = Math.max(currentLineMaxSize, rect.height);
+      }
+    } else {
+      var moveY = rect.height + (nextChildRect ? -nextChildRect.y + rect.y : 0);
+      nextY = y + moveY;
+      // Wrap when width exceeds maxHeight or meet a `newline` group
+      if (nextY > maxHeight || child.newline) {
+        x += currentLineMaxSize + gap;
+        y = 0;
+        nextY = moveY;
+        currentLineMaxSize = rect.width;
+      } else {
+        currentLineMaxSize = Math.max(currentLineMaxSize, rect.width);
+      }
+    }
+    if (child.newline) {
+      return;
+    }
+    child.x = x;
+    child.y = y;
+    child.markRedraw();
+    orient === 'horizontal' ? x = nextX + gap : y = nextY + gap;
+  });
+}
+/**
+ * VBox or HBox layouting
+ * @param {string} orient
+ * @param {module:zrender/graphic/Group} group
+ * @param {number} gap
+ * @param {number} [width=Infinity]
+ * @param {number} [height=Infinity]
+ */
+export var box = boxLayout;
+/**
+ * VBox layouting
+ * @param {module:zrender/graphic/Group} group
+ * @param {number} gap
+ * @param {number} [width=Infinity]
+ * @param {number} [height=Infinity]
+ */
+export var vbox = zrUtil.curry(boxLayout, 'vertical');
+/**
+ * HBox layouting
+ * @param {module:zrender/graphic/Group} group
+ * @param {number} gap
+ * @param {number} [width=Infinity]
+ * @param {number} [height=Infinity]
+ */
+export var hbox = zrUtil.curry(boxLayout, 'horizontal');
+/**
+ * If x or x2 is not specified or 'center' 'left' 'right',
+ * the width would be as long as possible.
+ * If y or y2 is not specified or 'middle' 'top' 'bottom',
+ * the height would be as long as possible.
+ */
+export function getAvailableSize(positionInfo, containerRect, margin) {
+  var containerWidth = containerRect.width;
+  var containerHeight = containerRect.height;
+  var x = parsePercent(positionInfo.left, containerWidth);
+  var y = parsePercent(positionInfo.top, containerHeight);
+  var x2 = parsePercent(positionInfo.right, containerWidth);
+  var y2 = parsePercent(positionInfo.bottom, containerHeight);
+  (isNaN(x) || isNaN(parseFloat(positionInfo.left))) && (x = 0);
+  (isNaN(x2) || isNaN(parseFloat(positionInfo.right))) && (x2 = containerWidth);
+  (isNaN(y) || isNaN(parseFloat(positionInfo.top))) && (y = 0);
+  (isNaN(y2) || isNaN(parseFloat(positionInfo.bottom))) && (y2 = containerHeight);
+  margin = formatUtil.normalizeCssArray(margin || 0);
+  return {
+    width: Math.max(x2 - x - margin[1] - margin[3], 0),
+    height: Math.max(y2 - y - margin[0] - margin[2], 0)
+  };
+}
+/**
+ * Parse position info.
+ */
+export function getLayoutRect(positionInfo, containerRect, margin) {
+  margin = formatUtil.normalizeCssArray(margin || 0);
+  var containerWidth = containerRect.width;
+  var containerHeight = containerRect.height;
+  var left = parsePercent(positionInfo.left, containerWidth);
+  var top = parsePercent(positionInfo.top, containerHeight);
+  var right = parsePercent(positionInfo.right, containerWidth);
+  var bottom = parsePercent(positionInfo.bottom, containerHeight);
+  var width = parsePercent(positionInfo.width, containerWidth);
+  var height = parsePercent(positionInfo.height, containerHeight);
+  var verticalMargin = margin[2] + margin[0];
+  var horizontalMargin = margin[1] + margin[3];
+  var aspect = positionInfo.aspect;
+  // If width is not specified, calculate width from left and right
+  if (isNaN(width)) {
+    width = containerWidth - right - horizontalMargin - left;
+  }
+  if (isNaN(height)) {
+    height = containerHeight - bottom - verticalMargin - top;
+  }
+  if (aspect != null) {
+    // If width and height are not given
+    // 1. Graph should not exceeds the container
+    // 2. Aspect must be keeped
+    // 3. Graph should take the space as more as possible
+    // FIXME
+    // Margin is not considered, because there is no case that both
+    // using margin and aspect so far.
+    if (isNaN(width) && isNaN(height)) {
+      if (aspect > containerWidth / containerHeight) {
+        width = containerWidth * 0.8;
+      } else {
+        height = containerHeight * 0.8;
+      }
+    }
+    // Calculate width or height with given aspect
+    if (isNaN(width)) {
+      width = aspect * height;
+    }
+    if (isNaN(height)) {
+      height = width / aspect;
+    }
+  }
+  // If left is not specified, calculate left from right and width
+  if (isNaN(left)) {
+    left = containerWidth - right - width - horizontalMargin;
+  }
+  if (isNaN(top)) {
+    top = containerHeight - bottom - height - verticalMargin;
+  }
+  // Align left and top
+  switch (positionInfo.left || positionInfo.right) {
+    case 'center':
+      left = containerWidth / 2 - width / 2 - margin[3];
+      break;
+    case 'right':
+      left = containerWidth - width - horizontalMargin;
+      break;
+  }
+  switch (positionInfo.top || positionInfo.bottom) {
+    case 'middle':
+    case 'center':
+      top = containerHeight / 2 - height / 2 - margin[0];
+      break;
+    case 'bottom':
+      top = containerHeight - height - verticalMargin;
+      break;
+  }
+  // If something is wrong and left, top, width, height are calculated as NaN
+  left = left || 0;
+  top = top || 0;
+  if (isNaN(width)) {
+    // Width may be NaN if only one value is given except width
+    width = containerWidth - horizontalMargin - left - (right || 0);
+  }
+  if (isNaN(height)) {
+    // Height may be NaN if only one value is given except height
+    height = containerHeight - verticalMargin - top - (bottom || 0);
+  }
+  var rect = new BoundingRect(left + margin[3], top + margin[0], width, height);
+  rect.margin = margin;
+  return rect;
+}
+/**
+ * Position a zr element in viewport
+ *  Group position is specified by either
+ *  {left, top}, {right, bottom}
+ *  If all properties exists, right and bottom will be igonred.
+ *
+ * Logic:
+ *     1. Scale (against origin point in parent coord)
+ *     2. Rotate (against origin point in parent coord)
+ *     3. Translate (with el.position by this method)
+ * So this method only fixes the last step 'Translate', which does not affect
+ * scaling and rotating.
+ *
+ * If be called repeatedly with the same input el, the same result will be gotten.
+ *
+ * Return true if the layout happened.
+ *
+ * @param el Should have `getBoundingRect` method.
+ * @param positionInfo
+ * @param positionInfo.left
+ * @param positionInfo.top
+ * @param positionInfo.right
+ * @param positionInfo.bottom
+ * @param positionInfo.width Only for opt.boundingModel: 'raw'
+ * @param positionInfo.height Only for opt.boundingModel: 'raw'
+ * @param containerRect
+ * @param margin
+ * @param opt
+ * @param opt.hv Only horizontal or only vertical. Default to be [1, 1]
+ * @param opt.boundingMode
+ *        Specify how to calculate boundingRect when locating.
+ *        'all': Position the boundingRect that is transformed and uioned
+ *               both itself and its descendants.
+ *               This mode simplies confine the elements in the bounding
+ *               of their container (e.g., using 'right: 0').
+ *        'raw': Position the boundingRect that is not transformed and only itself.
+ *               This mode is useful when you want a element can overflow its
+ *               container. (Consider a rotated circle needs to be located in a corner.)
+ *               In this mode positionInfo.width/height can only be number.
+ */
+export function positionElement(el, positionInfo, containerRect, margin, opt, out) {
+  var h = !opt || !opt.hv || opt.hv[0];
+  var v = !opt || !opt.hv || opt.hv[1];
+  var boundingMode = opt && opt.boundingMode || 'all';
+  out = out || el;
+  out.x = el.x;
+  out.y = el.y;
+  if (!h && !v) {
+    return false;
+  }
+  var rect;
+  if (boundingMode === 'raw') {
+    rect = el.type === 'group' ? new BoundingRect(0, 0, +positionInfo.width || 0, +positionInfo.height || 0) : el.getBoundingRect();
+  } else {
+    rect = el.getBoundingRect();
+    if (el.needLocalTransform()) {
+      var transform = el.getLocalTransform();
+      // Notice: raw rect may be inner object of el,
+      // which should not be modified.
+      rect = rect.clone();
+      rect.applyTransform(transform);
+    }
+  }
+  // The real width and height can not be specified but calculated by the given el.
+  var layoutRect = getLayoutRect(zrUtil.defaults({
+    width: rect.width,
+    height: rect.height
+  }, positionInfo), containerRect, margin);
+  // Because 'tranlate' is the last step in transform
+  // (see zrender/core/Transformable#getLocalTransform),
+  // we can just only modify el.position to get final result.
+  var dx = h ? layoutRect.x - rect.x : 0;
+  var dy = v ? layoutRect.y - rect.y : 0;
+  if (boundingMode === 'raw') {
+    out.x = dx;
+    out.y = dy;
+  } else {
+    out.x += dx;
+    out.y += dy;
+  }
+  if (out === el) {
+    el.markRedraw();
+  }
+  return true;
+}
+/**
+ * @param option Contains some of the properties in HV_NAMES.
+ * @param hvIdx 0: horizontal; 1: vertical.
+ */
+export function sizeCalculable(option, hvIdx) {
+  return option[HV_NAMES[hvIdx][0]] != null || option[HV_NAMES[hvIdx][1]] != null && option[HV_NAMES[hvIdx][2]] != null;
+}
+export function fetchLayoutMode(ins) {
+  var layoutMode = ins.layoutMode || ins.constructor.layoutMode;
+  return zrUtil.isObject(layoutMode) ? layoutMode : layoutMode ? {
+    type: layoutMode
+  } : null;
+}
+/**
+ * Consider Case:
+ * When default option has {left: 0, width: 100}, and we set {right: 0}
+ * through setOption or media query, using normal zrUtil.merge will cause
+ * {right: 0} does not take effect.
+ *
+ * @example
+ * ComponentModel.extend({
+ *     init: function () {
+ *         ...
+ *         let inputPositionParams = layout.getLayoutParams(option);
+ *         this.mergeOption(inputPositionParams);
+ *     },
+ *     mergeOption: function (newOption) {
+ *         newOption && zrUtil.merge(thisOption, newOption, true);
+ *         layout.mergeLayoutParam(thisOption, newOption);
+ *     }
+ * });
+ *
+ * @param targetOption
+ * @param newOption
+ * @param opt
+ */
+export function mergeLayoutParam(targetOption, newOption, opt) {
+  var ignoreSize = opt && opt.ignoreSize;
+  !zrUtil.isArray(ignoreSize) && (ignoreSize = [ignoreSize, ignoreSize]);
+  var hResult = merge(HV_NAMES[0], 0);
+  var vResult = merge(HV_NAMES[1], 1);
+  copy(HV_NAMES[0], targetOption, hResult);
+  copy(HV_NAMES[1], targetOption, vResult);
+  function merge(names, hvIdx) {
+    var newParams = {};
+    var newValueCount = 0;
+    var merged = {};
+    var mergedValueCount = 0;
+    var enoughParamNumber = 2;
+    each(names, function (name) {
+      merged[name] = targetOption[name];
+    });
+    each(names, function (name) {
+      // Consider case: newOption.width is null, which is
+      // set by user for removing width setting.
+      hasProp(newOption, name) && (newParams[name] = merged[name] = newOption[name]);
+      hasValue(newParams, name) && newValueCount++;
+      hasValue(merged, name) && mergedValueCount++;
+    });
+    if (ignoreSize[hvIdx]) {
+      // Only one of left/right is premitted to exist.
+      if (hasValue(newOption, names[1])) {
+        merged[names[2]] = null;
+      } else if (hasValue(newOption, names[2])) {
+        merged[names[1]] = null;
+      }
+      return merged;
+    }
+    // Case: newOption: {width: ..., right: ...},
+    // or targetOption: {right: ...} and newOption: {width: ...},
+    // There is no conflict when merged only has params count
+    // little than enoughParamNumber.
+    if (mergedValueCount === enoughParamNumber || !newValueCount) {
+      return merged;
+    }
+    // Case: newOption: {width: ..., right: ...},
+    // Than we can make sure user only want those two, and ignore
+    // all origin params in targetOption.
+    else if (newValueCount >= enoughParamNumber) {
+      return newParams;
+    } else {
+      // Chose another param from targetOption by priority.
+      for (var i = 0; i < names.length; i++) {
+        var name_1 = names[i];
+        if (!hasProp(newParams, name_1) && hasProp(targetOption, name_1)) {
+          newParams[name_1] = targetOption[name_1];
+          break;
+        }
+      }
+      return newParams;
+    }
+  }
+  function hasProp(obj, name) {
+    return obj.hasOwnProperty(name);
+  }
+  function hasValue(obj, name) {
+    return obj[name] != null && obj[name] !== 'auto';
+  }
+  function copy(names, target, source) {
+    each(names, function (name) {
+      target[name] = source[name];
+    });
+  }
+}
+/**
+ * Retrieve 'left', 'right', 'top', 'bottom', 'width', 'height' from object.
+ */
+export function getLayoutParams(source) {
+  return copyLayoutParams({}, source);
+}
+/**
+ * Retrieve 'left', 'right', 'top', 'bottom', 'width', 'height' from object.
+ * @param {Object} source
+ * @return {Object} Result contains those props.
+ */
+export function copyLayoutParams(target, source) {
+  source && target && each(LOCATION_PARAMS, function (name) {
+    source.hasOwnProperty(name) && (target[name] = source[name]);
+  });
+  return target;
+}

frontend/node_modules/echarts/lib/util/log.js

@@ -0,0 +1,134 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { map, isString, isFunction, eqNaN, isRegExp } from 'zrender/lib/core/util.js';
+var ECHARTS_PREFIX = '[ECharts] ';
+var storedLogs = {};
+var hasConsole = typeof console !== 'undefined'
+// eslint-disable-next-line
+&& console.warn && console.log;
+function outputLog(type, str, onlyOnce) {
+  if (hasConsole) {
+    if (onlyOnce) {
+      if (storedLogs[str]) {
+        return;
+      }
+      storedLogs[str] = true;
+    }
+    // eslint-disable-next-line
+    console[type](ECHARTS_PREFIX + str);
+  }
+}
+export function log(str, onlyOnce) {
+  outputLog('log', str, onlyOnce);
+}
+export function warn(str, onlyOnce) {
+  outputLog('warn', str, onlyOnce);
+}
+export function error(str, onlyOnce) {
+  outputLog('error', str, onlyOnce);
+}
+export function deprecateLog(str) {
+  if (process.env.NODE_ENV !== 'production') {
+    // Not display duplicate message.
+    outputLog('warn', 'DEPRECATED: ' + str, true);
+  }
+}
+export function deprecateReplaceLog(oldOpt, newOpt, scope) {
+  if (process.env.NODE_ENV !== 'production') {
+    deprecateLog((scope ? "[" + scope + "]" : '') + (oldOpt + " is deprecated, use " + newOpt + " instead."));
+  }
+}
+/**
+ * If in __DEV__ environment, get console printable message for users hint.
+ * Parameters are separated by ' '.
+ * @usage
+ * makePrintable('This is an error on', someVar, someObj);
+ *
+ * @param hintInfo anything about the current execution context to hint users.
+ * @throws Error
+ */
+export function makePrintable() {
+  var hintInfo = [];
+  for (var _i = 0; _i < arguments.length; _i++) {
+    hintInfo[_i] = arguments[_i];
+  }
+  var msg = '';
+  if (process.env.NODE_ENV !== 'production') {
+    // Fuzzy stringify for print.
+    // This code only exist in dev environment.
+    var makePrintableStringIfPossible_1 = function (val) {
+      return val === void 0 ? 'undefined' : val === Infinity ? 'Infinity' : val === -Infinity ? '-Infinity' : eqNaN(val) ? 'NaN' : val instanceof Date ? 'Date(' + val.toISOString() + ')' : isFunction(val) ? 'function () { ... }' : isRegExp(val) ? val + '' : null;
+    };
+    msg = map(hintInfo, function (arg) {
+      if (isString(arg)) {
+        // Print without quotation mark for some statement.
+        return arg;
+      } else {
+        var printableStr = makePrintableStringIfPossible_1(arg);
+        if (printableStr != null) {
+          return printableStr;
+        } else if (typeof JSON !== 'undefined' && JSON.stringify) {
+          try {
+            return JSON.stringify(arg, function (n, val) {
+              var printableStr = makePrintableStringIfPossible_1(val);
+              return printableStr == null ? val : printableStr;
+            });
+            // In most cases the info object is small, so do not line break.
+          } catch (err) {
+            return '?';
+          }
+        } else {
+          return '?';
+        }
+      }
+    }).join(' ');
+  }
+  return msg;
+}
+/**
+ * @throws Error
+ */
+export function throwError(msg) {
+  throw new Error(msg);
+}

frontend/node_modules/echarts/lib/util/model.js

@@ -0,0 +1,695 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { each, isObject, isArray, createHashMap, map, assert, isString, indexOf, isStringSafe, isNumber } from 'zrender/lib/core/util.js';
+import env from 'zrender/lib/core/env.js';
+import { isNumeric, getRandomIdBase, getPrecision, round } from './number.js';
+import { warn } from './log.js';
+function interpolateNumber(p0, p1, percent) {
+  return (p1 - p0) * percent + p0;
+}
+/**
+ * Make the name displayable. But we should
+ * make sure it is not duplicated with user
+ * specified name, so use '\0';
+ */
+var DUMMY_COMPONENT_NAME_PREFIX = 'series\0';
+var INTERNAL_COMPONENT_ID_PREFIX = '\0_ec_\0';
+/**
+ * If value is not array, then translate it to array.
+ * @param  {*} value
+ * @return {Array} [value] or value
+ */
+export function normalizeToArray(value) {
+  return value instanceof Array ? value : value == null ? [] : [value];
+}
+/**
+ * Sync default option between normal and emphasis like `position` and `show`
+ * In case some one will write code like
+ *     label: {
+ *          show: false,
+ *          position: 'outside',
+ *          fontSize: 18
+ *     },
+ *     emphasis: {
+ *          label: { show: true }
+ *     }
+ */
+export function defaultEmphasis(opt, key, subOpts) {
+  // Caution: performance sensitive.
+  if (opt) {
+    opt[key] = opt[key] || {};
+    opt.emphasis = opt.emphasis || {};
+    opt.emphasis[key] = opt.emphasis[key] || {};
+    // Default emphasis option from normal
+    for (var i = 0, len = subOpts.length; i < len; i++) {
+      var subOptName = subOpts[i];
+      if (!opt.emphasis[key].hasOwnProperty(subOptName) && opt[key].hasOwnProperty(subOptName)) {
+        opt.emphasis[key][subOptName] = opt[key][subOptName];
+      }
+    }
+  }
+}
+export var TEXT_STYLE_OPTIONS = ['fontStyle', 'fontWeight', 'fontSize', 'fontFamily', 'rich', 'tag', 'color', 'textBorderColor', 'textBorderWidth', 'width', 'height', 'lineHeight', 'align', 'verticalAlign', 'baseline', 'shadowColor', 'shadowBlur', 'shadowOffsetX', 'shadowOffsetY', 'textShadowColor', 'textShadowBlur', 'textShadowOffsetX', 'textShadowOffsetY', 'backgroundColor', 'borderColor', 'borderWidth', 'borderRadius', 'padding'];
+// modelUtil.LABEL_OPTIONS = modelUtil.TEXT_STYLE_OPTIONS.concat([
+//     'position', 'offset', 'rotate', 'origin', 'show', 'distance', 'formatter',
+//     'fontStyle', 'fontWeight', 'fontSize', 'fontFamily',
+//     // FIXME: deprecated, check and remove it.
+//     'textStyle'
+// ]);
+/**
+ * The method does not ensure performance.
+ * data could be [12, 2323, {value: 223}, [1221, 23], {value: [2, 23]}]
+ * This helper method retrieves value from data.
+ */
+export function getDataItemValue(dataItem) {
+  return isObject(dataItem) && !isArray(dataItem) && !(dataItem instanceof Date) ? dataItem.value : dataItem;
+}
+/**
+ * data could be [12, 2323, {value: 223}, [1221, 23], {value: [2, 23]}]
+ * This helper method determine if dataItem has extra option besides value
+ */
+export function isDataItemOption(dataItem) {
+  return isObject(dataItem) && !(dataItem instanceof Array);
+  // // markLine data can be array
+  // && !(dataItem[0] && isObject(dataItem[0]) && !(dataItem[0] instanceof Array));
+}
+;
+/**
+ * Mapping to existings for merge.
+ *
+ * Mode "normalMege":
+ *     The mapping result (merge result) will keep the order of the existing
+ *     component, rather than the order of new option. Because we should ensure
+ *     some specified index reference (like xAxisIndex) keep work.
+ *     And in most cases, "merge option" is used to update partial option but not
+ *     be expected to change the order.
+ *
+ * Mode "replaceMege":
+ *     (1) Only the id mapped components will be merged.
+ *     (2) Other existing components (except internal components) will be removed.
+ *     (3) Other new options will be used to create new component.
+ *     (4) The index of the existing components will not be modified.
+ *     That means their might be "hole" after the removal.
+ *     The new components are created first at those available index.
+ *
+ * Mode "replaceAll":
+ *     This mode try to support that reproduce an echarts instance from another
+ *     echarts instance (via `getOption`) in some simple cases.
+ *     In this scenario, the `result` index are exactly the consistent with the `newCmptOptions`,
+ *     which ensures the component index referring (like `xAxisIndex: ?`) corrent. That is,
+ *     the "hole" in `newCmptOptions` will also be kept.
+ *     On the contrary, other modes try best to eliminate holes.
+ *     PENDING: This is an experimental mode yet.
+ *
+ * @return See the comment of <MappingResult>.
+ */
+export function mappingToExists(existings, newCmptOptions, mode) {
+  var isNormalMergeMode = mode === 'normalMerge';
+  var isReplaceMergeMode = mode === 'replaceMerge';
+  var isReplaceAllMode = mode === 'replaceAll';
+  existings = existings || [];
+  newCmptOptions = (newCmptOptions || []).slice();
+  var existingIdIdxMap = createHashMap();
+  // Validate id and name on user input option.
+  each(newCmptOptions, function (cmptOption, index) {
+    if (!isObject(cmptOption)) {
+      newCmptOptions[index] = null;
+      return;
+    }
+    if (process.env.NODE_ENV !== 'production') {
+      // There is some legacy case that name is set as `false`.
+      // But should work normally rather than throw error.
+      if (cmptOption.id != null && !isValidIdOrName(cmptOption.id)) {
+        warnInvalidateIdOrName(cmptOption.id);
+      }
+      if (cmptOption.name != null && !isValidIdOrName(cmptOption.name)) {
+        warnInvalidateIdOrName(cmptOption.name);
+      }
+    }
+  });
+  var result = prepareResult(existings, existingIdIdxMap, mode);
+  if (isNormalMergeMode || isReplaceMergeMode) {
+    mappingById(result, existings, existingIdIdxMap, newCmptOptions);
+  }
+  if (isNormalMergeMode) {
+    mappingByName(result, newCmptOptions);
+  }
+  if (isNormalMergeMode || isReplaceMergeMode) {
+    mappingByIndex(result, newCmptOptions, isReplaceMergeMode);
+  } else if (isReplaceAllMode) {
+    mappingInReplaceAllMode(result, newCmptOptions);
+  }
+  makeIdAndName(result);
+  // The array `result` MUST NOT contain elided items, otherwise the
+  // forEach will omit those items and result in incorrect result.
+  return result;
+}
+function prepareResult(existings, existingIdIdxMap, mode) {
+  var result = [];
+  if (mode === 'replaceAll') {
+    return result;
+  }
+  // Do not use native `map` to in case that the array `existings`
+  // contains elided items, which will be omitted.
+  for (var index = 0; index < existings.length; index++) {
+    var existing = existings[index];
+    // Because of replaceMerge, `existing` may be null/undefined.
+    if (existing && existing.id != null) {
+      existingIdIdxMap.set(existing.id, index);
+    }
+    // For non-internal-componnets:
+    //     Mode "normalMerge": all existings kept.
+    //     Mode "replaceMerge": all existing removed unless mapped by id.
+    // For internal-components:
+    //     go with "replaceMerge" approach in both mode.
+    result.push({
+      existing: mode === 'replaceMerge' || isComponentIdInternal(existing) ? null : existing,
+      newOption: null,
+      keyInfo: null,
+      brandNew: null
+    });
+  }
+  return result;
+}
+function mappingById(result, existings, existingIdIdxMap, newCmptOptions) {
+  // Mapping by id if specified.
+  each(newCmptOptions, function (cmptOption, index) {
+    if (!cmptOption || cmptOption.id == null) {
+      return;
+    }
+    var optionId = makeComparableKey(cmptOption.id);
+    var existingIdx = existingIdIdxMap.get(optionId);
+    if (existingIdx != null) {
+      var resultItem = result[existingIdx];
+      assert(!resultItem.newOption, 'Duplicated option on id "' + optionId + '".');
+      resultItem.newOption = cmptOption;
+      // In both mode, if id matched, new option will be merged to
+      // the existings rather than creating new component model.
+      resultItem.existing = existings[existingIdx];
+      newCmptOptions[index] = null;
+    }
+  });
+}
+function mappingByName(result, newCmptOptions) {
+  // Mapping by name if specified.
+  each(newCmptOptions, function (cmptOption, index) {
+    if (!cmptOption || cmptOption.name == null) {
+      return;
+    }
+    for (var i = 0; i < result.length; i++) {
+      var existing = result[i].existing;
+      if (!result[i].newOption // Consider name: two map to one.
+      // Can not match when both ids existing but different.
+      && existing && (existing.id == null || cmptOption.id == null) && !isComponentIdInternal(cmptOption) && !isComponentIdInternal(existing) && keyExistAndEqual('name', existing, cmptOption)) {
+        result[i].newOption = cmptOption;
+        newCmptOptions[index] = null;
+        return;
+      }
+    }
+  });
+}
+function mappingByIndex(result, newCmptOptions, brandNew) {
+  each(newCmptOptions, function (cmptOption) {
+    if (!cmptOption) {
+      return;
+    }
+    // Find the first place that not mapped by id and not internal component (consider the "hole").
+    var resultItem;
+    var nextIdx = 0;
+    while (
+    // Be `!resultItem` only when `nextIdx >= result.length`.
+    (resultItem = result[nextIdx]
+    // (1) Existing models that already have id should be able to mapped to. Because
+    // after mapping performed, model will always be assigned with an id if user not given.
+    // After that all models have id.
+    // (2) If new option has id, it can only set to a hole or append to the last. It should
+    // not be merged to the existings with different id. Because id should not be overwritten.
+    // (3) Name can be overwritten, because axis use name as 'show label text'.
+    ) && (resultItem.newOption || isComponentIdInternal(resultItem.existing) ||
+    // In mode "replaceMerge", here no not-mapped-non-internal-existing.
+    resultItem.existing && cmptOption.id != null && !keyExistAndEqual('id', cmptOption, resultItem.existing))) {
+      nextIdx++;
+    }
+    if (resultItem) {
+      resultItem.newOption = cmptOption;
+      resultItem.brandNew = brandNew;
+    } else {
+      result.push({
+        newOption: cmptOption,
+        brandNew: brandNew,
+        existing: null,
+        keyInfo: null
+      });
+    }
+    nextIdx++;
+  });
+}
+function mappingInReplaceAllMode(result, newCmptOptions) {
+  each(newCmptOptions, function (cmptOption) {
+    // The feature "reproduce" requires "hole" will also reproduced
+    // in case that component index referring are broken.
+    result.push({
+      newOption: cmptOption,
+      brandNew: true,
+      existing: null,
+      keyInfo: null
+    });
+  });
+}
+/**
+ * Make id and name for mapping result (result of mappingToExists)
+ * into `keyInfo` field.
+ */
+function makeIdAndName(mapResult) {
+  // We use this id to hash component models and view instances
+  // in echarts. id can be specified by user, or auto generated.
+  // The id generation rule ensures new view instance are able
+  // to mapped to old instance when setOption are called in
+  // no-merge mode. So we generate model id by name and plus
+  // type in view id.
+  // name can be duplicated among components, which is convenient
+  // to specify multi components (like series) by one name.
+  // Ensure that each id is distinct.
+  var idMap = createHashMap();
+  each(mapResult, function (item) {
+    var existing = item.existing;
+    existing && idMap.set(existing.id, item);
+  });
+  each(mapResult, function (item) {
+    var opt = item.newOption;
+    // Force ensure id not duplicated.
+    assert(!opt || opt.id == null || !idMap.get(opt.id) || idMap.get(opt.id) === item, 'id duplicates: ' + (opt && opt.id));
+    opt && opt.id != null && idMap.set(opt.id, item);
+    !item.keyInfo && (item.keyInfo = {});
+  });
+  // Make name and id.
+  each(mapResult, function (item, index) {
+    var existing = item.existing;
+    var opt = item.newOption;
+    var keyInfo = item.keyInfo;
+    if (!isObject(opt)) {
+      return;
+    }
+    // Name can be overwritten. Consider case: axis.name = '20km'.
+    // But id generated by name will not be changed, which affect
+    // only in that case: setOption with 'not merge mode' and view
+    // instance will be recreated, which can be accepted.
+    keyInfo.name = opt.name != null ? makeComparableKey(opt.name) : existing ? existing.name
+    // Avoid that different series has the same name,
+    // because name may be used like in color pallet.
+    : DUMMY_COMPONENT_NAME_PREFIX + index;
+    if (existing) {
+      keyInfo.id = makeComparableKey(existing.id);
+    } else if (opt.id != null) {
+      keyInfo.id = makeComparableKey(opt.id);
+    } else {
+      // Consider this situatoin:
+      //  optionA: [{name: 'a'}, {name: 'a'}, {..}]
+      //  optionB [{..}, {name: 'a'}, {name: 'a'}]
+      // Series with the same name between optionA and optionB
+      // should be mapped.
+      var idNum = 0;
+      do {
+        keyInfo.id = '\0' + keyInfo.name + '\0' + idNum++;
+      } while (idMap.get(keyInfo.id));
+    }
+    idMap.set(keyInfo.id, item);
+  });
+}
+function keyExistAndEqual(attr, obj1, obj2) {
+  var key1 = convertOptionIdName(obj1[attr], null);
+  var key2 = convertOptionIdName(obj2[attr], null);
+  // See `MappingExistingItem`. `id` and `name` trade string equals to number.
+  return key1 != null && key2 != null && key1 === key2;
+}
+/**
+ * @return return null if not exist.
+ */
+function makeComparableKey(val) {
+  if (process.env.NODE_ENV !== 'production') {
+    if (val == null) {
+      throw new Error();
+    }
+  }
+  return convertOptionIdName(val, '');
+}
+export function convertOptionIdName(idOrName, defaultValue) {
+  if (idOrName == null) {
+    return defaultValue;
+  }
+  return isString(idOrName) ? idOrName : isNumber(idOrName) || isStringSafe(idOrName) ? idOrName + '' : defaultValue;
+}
+function warnInvalidateIdOrName(idOrName) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn('`' + idOrName + '` is invalid id or name. Must be a string or number.');
+  }
+}
+function isValidIdOrName(idOrName) {
+  return isStringSafe(idOrName) || isNumeric(idOrName);
+}
+export function isNameSpecified(componentModel) {
+  var name = componentModel.name;
+  // Is specified when `indexOf` get -1 or > 0.
+  return !!(name && name.indexOf(DUMMY_COMPONENT_NAME_PREFIX));
+}
+/**
+ * @public
+ * @param {Object} cmptOption
+ * @return {boolean}
+ */
+export function isComponentIdInternal(cmptOption) {
+  return cmptOption && cmptOption.id != null && makeComparableKey(cmptOption.id).indexOf(INTERNAL_COMPONENT_ID_PREFIX) === 0;
+}
+export function makeInternalComponentId(idSuffix) {
+  return INTERNAL_COMPONENT_ID_PREFIX + idSuffix;
+}
+export function setComponentTypeToKeyInfo(mappingResult, mainType, componentModelCtor) {
+  // Set mainType and complete subType.
+  each(mappingResult, function (item) {
+    var newOption = item.newOption;
+    if (isObject(newOption)) {
+      item.keyInfo.mainType = mainType;
+      item.keyInfo.subType = determineSubType(mainType, newOption, item.existing, componentModelCtor);
+    }
+  });
+}
+function determineSubType(mainType, newCmptOption, existComponent, componentModelCtor) {
+  var subType = newCmptOption.type ? newCmptOption.type : existComponent ? existComponent.subType
+  // Use determineSubType only when there is no existComponent.
+  : componentModelCtor.determineSubType(mainType, newCmptOption);
+  // tooltip, markline, markpoint may always has no subType
+  return subType;
+}
+/**
+ * A helper for removing duplicate items between batchA and batchB,
+ * and in themselves, and categorize by series.
+ *
+ * @param batchA Like: [{seriesId: 2, dataIndex: [32, 4, 5]}, ...]
+ * @param batchB Like: [{seriesId: 2, dataIndex: [32, 4, 5]}, ...]
+ * @return result: [resultBatchA, resultBatchB]
+ */
+export function compressBatches(batchA, batchB) {
+  var mapA = {};
+  var mapB = {};
+  makeMap(batchA || [], mapA);
+  makeMap(batchB || [], mapB, mapA);
+  return [mapToArray(mapA), mapToArray(mapB)];
+  function makeMap(sourceBatch, map, otherMap) {
+    for (var i = 0, len = sourceBatch.length; i < len; i++) {
+      var seriesId = convertOptionIdName(sourceBatch[i].seriesId, null);
+      if (seriesId == null) {
+        return;
+      }
+      var dataIndices = normalizeToArray(sourceBatch[i].dataIndex);
+      var otherDataIndices = otherMap && otherMap[seriesId];
+      for (var j = 0, lenj = dataIndices.length; j < lenj; j++) {
+        var dataIndex = dataIndices[j];
+        if (otherDataIndices && otherDataIndices[dataIndex]) {
+          otherDataIndices[dataIndex] = null;
+        } else {
+          (map[seriesId] || (map[seriesId] = {}))[dataIndex] = 1;
+        }
+      }
+    }
+  }
+  function mapToArray(map, isData) {
+    var result = [];
+    for (var i in map) {
+      if (map.hasOwnProperty(i) && map[i] != null) {
+        if (isData) {
+          result.push(+i);
+        } else {
+          var dataIndices = mapToArray(map[i], true);
+          dataIndices.length && result.push({
+            seriesId: i,
+            dataIndex: dataIndices
+          });
+        }
+      }
+    }
+    return result;
+  }
+}
+/**
+ * @param payload Contains dataIndex (means rawIndex) / dataIndexInside / name
+ *                         each of which can be Array or primary type.
+ * @return dataIndex If not found, return undefined/null.
+ */
+export function queryDataIndex(data, payload) {
+  if (payload.dataIndexInside != null) {
+    return payload.dataIndexInside;
+  } else if (payload.dataIndex != null) {
+    return isArray(payload.dataIndex) ? map(payload.dataIndex, function (value) {
+      return data.indexOfRawIndex(value);
+    }) : data.indexOfRawIndex(payload.dataIndex);
+  } else if (payload.name != null) {
+    return isArray(payload.name) ? map(payload.name, function (value) {
+      return data.indexOfName(value);
+    }) : data.indexOfName(payload.name);
+  }
+}
+/**
+ * Enable property storage to any host object.
+ * Notice: Serialization is not supported.
+ *
+ * For example:
+ * let inner = zrUitl.makeInner();
+ *
+ * function some1(hostObj) {
+ *      inner(hostObj).someProperty = 1212;
+ *      ...
+ * }
+ * function some2() {
+ *      let fields = inner(this);
+ *      fields.someProperty1 = 1212;
+ *      fields.someProperty2 = 'xx';
+ *      ...
+ * }
+ *
+ * @return {Function}
+ */
+export function makeInner() {
+  var key = '__ec_inner_' + innerUniqueIndex++;
+  return function (hostObj) {
+    return hostObj[key] || (hostObj[key] = {});
+  };
+}
+var innerUniqueIndex = getRandomIdBase();
+/**
+ * The same behavior as `component.getReferringComponents`.
+ */
+export function parseFinder(ecModel, finderInput, opt) {
+  var _a = preParseFinder(finderInput, opt),
+    mainTypeSpecified = _a.mainTypeSpecified,
+    queryOptionMap = _a.queryOptionMap,
+    others = _a.others;
+  var result = others;
+  var defaultMainType = opt ? opt.defaultMainType : null;
+  if (!mainTypeSpecified && defaultMainType) {
+    queryOptionMap.set(defaultMainType, {});
+  }
+  queryOptionMap.each(function (queryOption, mainType) {
+    var queryResult = queryReferringComponents(ecModel, mainType, queryOption, {
+      useDefault: defaultMainType === mainType,
+      enableAll: opt && opt.enableAll != null ? opt.enableAll : true,
+      enableNone: opt && opt.enableNone != null ? opt.enableNone : true
+    });
+    result[mainType + 'Models'] = queryResult.models;
+    result[mainType + 'Model'] = queryResult.models[0];
+  });
+  return result;
+}
+export function preParseFinder(finderInput, opt) {
+  var finder;
+  if (isString(finderInput)) {
+    var obj = {};
+    obj[finderInput + 'Index'] = 0;
+    finder = obj;
+  } else {
+    finder = finderInput;
+  }
+  var queryOptionMap = createHashMap();
+  var others = {};
+  var mainTypeSpecified = false;
+  each(finder, function (value, key) {
+    // Exclude 'dataIndex' and other illgal keys.
+    if (key === 'dataIndex' || key === 'dataIndexInside') {
+      others[key] = value;
+      return;
+    }
+    var parsedKey = key.match(/^(\w+)(Index|Id|Name)$/) || [];
+    var mainType = parsedKey[1];
+    var queryType = (parsedKey[2] || '').toLowerCase();
+    if (!mainType || !queryType || opt && opt.includeMainTypes && indexOf(opt.includeMainTypes, mainType) < 0) {
+      return;
+    }
+    mainTypeSpecified = mainTypeSpecified || !!mainType;
+    var queryOption = queryOptionMap.get(mainType) || queryOptionMap.set(mainType, {});
+    queryOption[queryType] = value;
+  });
+  return {
+    mainTypeSpecified: mainTypeSpecified,
+    queryOptionMap: queryOptionMap,
+    others: others
+  };
+}
+export var SINGLE_REFERRING = {
+  useDefault: true,
+  enableAll: false,
+  enableNone: false
+};
+export var MULTIPLE_REFERRING = {
+  useDefault: false,
+  enableAll: true,
+  enableNone: true
+};
+export function queryReferringComponents(ecModel, mainType, userOption, opt) {
+  opt = opt || SINGLE_REFERRING;
+  var indexOption = userOption.index;
+  var idOption = userOption.id;
+  var nameOption = userOption.name;
+  var result = {
+    models: null,
+    specified: indexOption != null || idOption != null || nameOption != null
+  };
+  if (!result.specified) {
+    // Use the first as default if `useDefault`.
+    var firstCmpt = void 0;
+    result.models = opt.useDefault && (firstCmpt = ecModel.getComponent(mainType)) ? [firstCmpt] : [];
+    return result;
+  }
+  if (indexOption === 'none' || indexOption === false) {
+    assert(opt.enableNone, '`"none"` or `false` is not a valid value on index option.');
+    result.models = [];
+    return result;
+  }
+  // `queryComponents` will return all components if
+  // both all of index/id/name are null/undefined.
+  if (indexOption === 'all') {
+    assert(opt.enableAll, '`"all"` is not a valid value on index option.');
+    indexOption = idOption = nameOption = null;
+  }
+  result.models = ecModel.queryComponents({
+    mainType: mainType,
+    index: indexOption,
+    id: idOption,
+    name: nameOption
+  });
+  return result;
+}
+export function setAttribute(dom, key, value) {
+  dom.setAttribute ? dom.setAttribute(key, value) : dom[key] = value;
+}
+export function getAttribute(dom, key) {
+  return dom.getAttribute ? dom.getAttribute(key) : dom[key];
+}
+export function getTooltipRenderMode(renderModeOption) {
+  if (renderModeOption === 'auto') {
+    // Using html when `document` exists, use richText otherwise
+    return env.domSupported ? 'html' : 'richText';
+  } else {
+    return renderModeOption || 'html';
+  }
+}
+/**
+ * Group a list by key.
+ */
+export function groupData(array, getKey // return key
+) {
+  var buckets = createHashMap();
+  var keys = [];
+  each(array, function (item) {
+    var key = getKey(item);
+    (buckets.get(key) || (keys.push(key), buckets.set(key, []))).push(item);
+  });
+  return {
+    keys: keys,
+    buckets: buckets
+  };
+}
+/**
+ * Interpolate raw values of a series with percent
+ *
+ * @param data         data
+ * @param labelModel   label model of the text element
+ * @param sourceValue  start value. May be null/undefined when init.
+ * @param targetValue  end value
+ * @param percent      0~1 percentage; 0 uses start value while 1 uses end value
+ * @return             interpolated values
+ *                     If `sourceValue` and `targetValue` are `number`, return `number`.
+ *                     If `sourceValue` and `targetValue` are `string`, return `string`.
+ *                     If `sourceValue` and `targetValue` are `(string | number)[]`, return `(string | number)[]`.
+ *                     Other cases do not supported.
+ */
+export function interpolateRawValues(data, precision, sourceValue, targetValue, percent) {
+  var isAutoPrecision = precision == null || precision === 'auto';
+  if (targetValue == null) {
+    return targetValue;
+  }
+  if (isNumber(targetValue)) {
+    var value = interpolateNumber(sourceValue || 0, targetValue, percent);
+    return round(value, isAutoPrecision ? Math.max(getPrecision(sourceValue || 0), getPrecision(targetValue)) : precision);
+  } else if (isString(targetValue)) {
+    return percent < 1 ? sourceValue : targetValue;
+  } else {
+    var interpolated = [];
+    var leftArr = sourceValue;
+    var rightArr = targetValue;
+    var length_1 = Math.max(leftArr ? leftArr.length : 0, rightArr.length);
+    for (var i = 0; i < length_1; ++i) {
+      var info = data.getDimensionInfo(i);
+      // Don't interpolate ordinal dims
+      if (info && info.type === 'ordinal') {
+        // In init, there is no `sourceValue`, but should better not to get undefined result.
+        interpolated[i] = (percent < 1 && leftArr ? leftArr : rightArr)[i];
+      } else {
+        var leftVal = leftArr && leftArr[i] ? leftArr[i] : 0;
+        var rightVal = rightArr[i];
+        var value = interpolateNumber(leftVal, rightVal, percent);
+        interpolated[i] = round(value, isAutoPrecision ? Math.max(getPrecision(leftVal), getPrecision(rightVal)) : precision);
+      }
+    }
+    return interpolated;
+  }
+}

frontend/node_modules/echarts/lib/util/number.js

@@ -0,0 +1,563 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+/*
+* A third-party license is embedded for some of the code in this file:
+* The method "quantile" was copied from "d3.js".
+* (See more details in the comment of the method below.)
+* The use of the source code of this file is also subject to the terms
+* and consitions of the license of "d3.js" (BSD-3Clause, see
+* </licenses/LICENSE-d3>).
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+var RADIAN_EPSILON = 1e-4;
+// Although chrome already enlarge this number to 100 for `toFixed`, but
+// we sill follow the spec for compatibility.
+var ROUND_SUPPORTED_PRECISION_MAX = 20;
+function _trim(str) {
+  return str.replace(/^\s+|\s+$/g, '');
+}
+/**
+ * Linear mapping a value from domain to range
+ * @param  val
+ * @param  domain Domain extent domain[0] can be bigger than domain[1]
+ * @param  range  Range extent range[0] can be bigger than range[1]
+ * @param  clamp Default to be false
+ */
+export function linearMap(val, domain, range, clamp) {
+  var d0 = domain[0];
+  var d1 = domain[1];
+  var r0 = range[0];
+  var r1 = range[1];
+  var subDomain = d1 - d0;
+  var subRange = r1 - r0;
+  if (subDomain === 0) {
+    return subRange === 0 ? r0 : (r0 + r1) / 2;
+  }
+  // Avoid accuracy problem in edge, such as
+  // 146.39 - 62.83 === 83.55999999999999.
+  // See echarts/test/ut/spec/util/number.js#linearMap#accuracyError
+  // It is a little verbose for efficiency considering this method
+  // is a hotspot.
+  if (clamp) {
+    if (subDomain > 0) {
+      if (val <= d0) {
+        return r0;
+      } else if (val >= d1) {
+        return r1;
+      }
+    } else {
+      if (val >= d0) {
+        return r0;
+      } else if (val <= d1) {
+        return r1;
+      }
+    }
+  } else {
+    if (val === d0) {
+      return r0;
+    }
+    if (val === d1) {
+      return r1;
+    }
+  }
+  return (val - d0) / subDomain * subRange + r0;
+}
+/**
+ * Convert a percent string to absolute number.
+ * Returns NaN if percent is not a valid string or number
+ */
+export function parsePercent(percent, all) {
+  switch (percent) {
+    case 'center':
+    case 'middle':
+      percent = '50%';
+      break;
+    case 'left':
+    case 'top':
+      percent = '0%';
+      break;
+    case 'right':
+    case 'bottom':
+      percent = '100%';
+      break;
+  }
+  if (zrUtil.isString(percent)) {
+    if (_trim(percent).match(/%$/)) {
+      return parseFloat(percent) / 100 * all;
+    }
+    return parseFloat(percent);
+  }
+  return percent == null ? NaN : +percent;
+}
+export function round(x, precision, returnStr) {
+  if (precision == null) {
+    precision = 10;
+  }
+  // Avoid range error
+  precision = Math.min(Math.max(0, precision), ROUND_SUPPORTED_PRECISION_MAX);
+  // PENDING: 1.005.toFixed(2) is '1.00' rather than '1.01'
+  x = (+x).toFixed(precision);
+  return returnStr ? x : +x;
+}
+/**
+ * Inplacd asc sort arr.
+ * The input arr will be modified.
+ */
+export function asc(arr) {
+  arr.sort(function (a, b) {
+    return a - b;
+  });
+  return arr;
+}
+/**
+ * Get precision.
+ */
+export function getPrecision(val) {
+  val = +val;
+  if (isNaN(val)) {
+    return 0;
+  }
+  // It is much faster than methods converting number to string as follows
+  //      let tmp = val.toString();
+  //      return tmp.length - 1 - tmp.indexOf('.');
+  // especially when precision is low
+  // Notice:
+  // (1) If the loop count is over about 20, it is slower than `getPrecisionSafe`.
+  //     (see https://jsbench.me/2vkpcekkvw/1)
+  // (2) If the val is less than for example 1e-15, the result may be incorrect.
+  //     (see test/ut/spec/util/number.test.ts `getPrecision_equal_random`)
+  if (val > 1e-14) {
+    var e = 1;
+    for (var i = 0; i < 15; i++, e *= 10) {
+      if (Math.round(val * e) / e === val) {
+        return i;
+      }
+    }
+  }
+  return getPrecisionSafe(val);
+}
+/**
+ * Get precision with slow but safe method
+ */
+export function getPrecisionSafe(val) {
+  // toLowerCase for: '3.4E-12'
+  var str = val.toString().toLowerCase();
+  // Consider scientific notation: '3.4e-12' '3.4e+12'
+  var eIndex = str.indexOf('e');
+  var exp = eIndex > 0 ? +str.slice(eIndex + 1) : 0;
+  var significandPartLen = eIndex > 0 ? eIndex : str.length;
+  var dotIndex = str.indexOf('.');
+  var decimalPartLen = dotIndex < 0 ? 0 : significandPartLen - 1 - dotIndex;
+  return Math.max(0, decimalPartLen - exp);
+}
+/**
+ * Minimal dicernible data precisioin according to a single pixel.
+ */
+export function getPixelPrecision(dataExtent, pixelExtent) {
+  var log = Math.log;
+  var LN10 = Math.LN10;
+  var dataQuantity = Math.floor(log(dataExtent[1] - dataExtent[0]) / LN10);
+  var sizeQuantity = Math.round(log(Math.abs(pixelExtent[1] - pixelExtent[0])) / LN10);
+  // toFixed() digits argument must be between 0 and 20.
+  var precision = Math.min(Math.max(-dataQuantity + sizeQuantity, 0), 20);
+  return !isFinite(precision) ? 20 : precision;
+}
+/**
+ * Get a data of given precision, assuring the sum of percentages
+ * in valueList is 1.
+ * The largest remainder method is used.
+ * https://en.wikipedia.org/wiki/Largest_remainder_method
+ *
+ * @param valueList a list of all data
+ * @param idx index of the data to be processed in valueList
+ * @param precision integer number showing digits of precision
+ * @return percent ranging from 0 to 100
+ */
+export function getPercentWithPrecision(valueList, idx, precision) {
+  if (!valueList[idx]) {
+    return 0;
+  }
+  var seats = getPercentSeats(valueList, precision);
+  return seats[idx] || 0;
+}
+/**
+ * Get a data of given precision, assuring the sum of percentages
+ * in valueList is 1.
+ * The largest remainder method is used.
+ * https://en.wikipedia.org/wiki/Largest_remainder_method
+ *
+ * @param valueList a list of all data
+ * @param precision integer number showing digits of precision
+ * @return {Array<number>}
+ */
+export function getPercentSeats(valueList, precision) {
+  var sum = zrUtil.reduce(valueList, function (acc, val) {
+    return acc + (isNaN(val) ? 0 : val);
+  }, 0);
+  if (sum === 0) {
+    return [];
+  }
+  var digits = Math.pow(10, precision);
+  var votesPerQuota = zrUtil.map(valueList, function (val) {
+    return (isNaN(val) ? 0 : val) / sum * digits * 100;
+  });
+  var targetSeats = digits * 100;
+  var seats = zrUtil.map(votesPerQuota, function (votes) {
+    // Assign automatic seats.
+    return Math.floor(votes);
+  });
+  var currentSum = zrUtil.reduce(seats, function (acc, val) {
+    return acc + val;
+  }, 0);
+  var remainder = zrUtil.map(votesPerQuota, function (votes, idx) {
+    return votes - seats[idx];
+  });
+  // Has remainding votes.
+  while (currentSum < targetSeats) {
+    // Find next largest remainder.
+    var max = Number.NEGATIVE_INFINITY;
+    var maxId = null;
+    for (var i = 0, len = remainder.length; i < len; ++i) {
+      if (remainder[i] > max) {
+        max = remainder[i];
+        maxId = i;
+      }
+    }
+    // Add a vote to max remainder.
+    ++seats[maxId];
+    remainder[maxId] = 0;
+    ++currentSum;
+  }
+  return zrUtil.map(seats, function (seat) {
+    return seat / digits;
+  });
+}
+/**
+ * Solve the floating point adding problem like 0.1 + 0.2 === 0.30000000000000004
+ * See <http://0.30000000000000004.com/>
+ */
+export function addSafe(val0, val1) {
+  var maxPrecision = Math.max(getPrecision(val0), getPrecision(val1));
+  // const multiplier = Math.pow(10, maxPrecision);
+  // return (Math.round(val0 * multiplier) + Math.round(val1 * multiplier)) / multiplier;
+  var sum = val0 + val1;
+  // // PENDING: support more?
+  return maxPrecision > ROUND_SUPPORTED_PRECISION_MAX ? sum : round(sum, maxPrecision);
+}
+// Number.MAX_SAFE_INTEGER, ie do not support.
+export var MAX_SAFE_INTEGER = 9007199254740991;
+/**
+ * To 0 - 2 * PI, considering negative radian.
+ */
+export function remRadian(radian) {
+  var pi2 = Math.PI * 2;
+  return (radian % pi2 + pi2) % pi2;
+}
+/**
+ * @param {type} radian
+ * @return {boolean}
+ */
+export function isRadianAroundZero(val) {
+  return val > -RADIAN_EPSILON && val < RADIAN_EPSILON;
+}
+// eslint-disable-next-line
+var TIME_REG = /^(?:(\d{4})(?:[-\/](\d{1,2})(?:[-\/](\d{1,2})(?:[T ](\d{1,2})(?::(\d{1,2})(?::(\d{1,2})(?:[.,](\d+))?)?)?(Z|[\+\-]\d\d:?\d\d)?)?)?)?)?$/; // jshint ignore:line
+/**
+ * @param value valid type: number | string | Date, otherwise return `new Date(NaN)`
+ *   These values can be accepted:
+ *   + An instance of Date, represent a time in its own time zone.
+ *   + Or string in a subset of ISO 8601, only including:
+ *     + only year, month, date: '2012-03', '2012-03-01', '2012-03-01 05', '2012-03-01 05:06',
+ *     + separated with T or space: '2012-03-01T12:22:33.123', '2012-03-01 12:22:33.123',
+ *     + time zone: '2012-03-01T12:22:33Z', '2012-03-01T12:22:33+8000', '2012-03-01T12:22:33-05:00',
+ *     all of which will be treated as local time if time zone is not specified
+ *     (see <https://momentjs.com/>).
+ *   + Or other string format, including (all of which will be treated as local time):
+ *     '2012', '2012-3-1', '2012/3/1', '2012/03/01',
+ *     '2009/6/12 2:00', '2009/6/12 2:05:08', '2009/6/12 2:05:08.123'
+ *   + a timestamp, which represent a time in UTC.
+ * @return date Never be null/undefined. If invalid, return `new Date(NaN)`.
+ */
+export function parseDate(value) {
+  if (value instanceof Date) {
+    return value;
+  } else if (zrUtil.isString(value)) {
+    // Different browsers parse date in different way, so we parse it manually.
+    // Some other issues:
+    // new Date('1970-01-01') is UTC,
+    // new Date('1970/01/01') and new Date('1970-1-01') is local.
+    // See issue #3623
+    var match = TIME_REG.exec(value);
+    if (!match) {
+      // return Invalid Date.
+      return new Date(NaN);
+    }
+    // Use local time when no timezone offset is specified.
+    if (!match[8]) {
+      // match[n] can only be string or undefined.
+      // But take care of '12' + 1 => '121'.
+      return new Date(+match[1], +(match[2] || 1) - 1, +match[3] || 1, +match[4] || 0, +(match[5] || 0), +match[6] || 0, match[7] ? +match[7].substring(0, 3) : 0);
+    }
+    // Timezoneoffset of Javascript Date has considered DST (Daylight Saving Time,
+    // https://tc39.github.io/ecma262/#sec-daylight-saving-time-adjustment).
+    // For example, system timezone is set as "Time Zone: America/Toronto",
+    // then these code will get different result:
+    // `new Date(1478411999999).getTimezoneOffset();  // get 240`
+    // `new Date(1478412000000).getTimezoneOffset();  // get 300`
+    // So we should not use `new Date`, but use `Date.UTC`.
+    else {
+      var hour = +match[4] || 0;
+      if (match[8].toUpperCase() !== 'Z') {
+        hour -= +match[8].slice(0, 3);
+      }
+      return new Date(Date.UTC(+match[1], +(match[2] || 1) - 1, +match[3] || 1, hour, +(match[5] || 0), +match[6] || 0, match[7] ? +match[7].substring(0, 3) : 0));
+    }
+  } else if (value == null) {
+    return new Date(NaN);
+  }
+  return new Date(Math.round(value));
+}
+/**
+ * Quantity of a number. e.g. 0.1, 1, 10, 100
+ *
+ * @param val
+ * @return
+ */
+export function quantity(val) {
+  return Math.pow(10, quantityExponent(val));
+}
+/**
+ * Exponent of the quantity of a number
+ * e.g., 1234 equals to 1.234*10^3, so quantityExponent(1234) is 3
+ *
+ * @param val non-negative value
+ * @return
+ */
+export function quantityExponent(val) {
+  if (val === 0) {
+    return 0;
+  }
+  var exp = Math.floor(Math.log(val) / Math.LN10);
+  /**
+   * exp is expected to be the rounded-down result of the base-10 log of val.
+   * But due to the precision loss with Math.log(val), we need to restore it
+   * using 10^exp to make sure we can get val back from exp. #11249
+   */
+  if (val / Math.pow(10, exp) >= 10) {
+    exp++;
+  }
+  return exp;
+}
+/**
+ * find a “nice” number approximately equal to x. Round the number if round = true,
+ * take ceiling if round = false. The primary observation is that the “nicest”
+ * numbers in decimal are 1, 2, and 5, and all power-of-ten multiples of these numbers.
+ *
+ * See "Nice Numbers for Graph Labels" of Graphic Gems.
+ *
+ * @param  val Non-negative value.
+ * @param  round
+ * @return Niced number
+ */
+export function nice(val, round) {
+  var exponent = quantityExponent(val);
+  var exp10 = Math.pow(10, exponent);
+  var f = val / exp10; // 1 <= f < 10
+  var nf;
+  if (round) {
+    if (f < 1.5) {
+      nf = 1;
+    } else if (f < 2.5) {
+      nf = 2;
+    } else if (f < 4) {
+      nf = 3;
+    } else if (f < 7) {
+      nf = 5;
+    } else {
+      nf = 10;
+    }
+  } else {
+    if (f < 1) {
+      nf = 1;
+    } else if (f < 2) {
+      nf = 2;
+    } else if (f < 3) {
+      nf = 3;
+    } else if (f < 5) {
+      nf = 5;
+    } else {
+      nf = 10;
+    }
+  }
+  val = nf * exp10;
+  // Fix 3 * 0.1 === 0.30000000000000004 issue (see IEEE 754).
+  // 20 is the uppper bound of toFixed.
+  return exponent >= -20 ? +val.toFixed(exponent < 0 ? -exponent : 0) : val;
+}
+/**
+ * This code was copied from "d3.js"
+ * <https://github.com/d3/d3/blob/9cc9a875e636a1dcf36cc1e07bdf77e1ad6e2c74/src/arrays/quantile.js>.
+ * See the license statement at the head of this file.
+ * @param ascArr
+ */
+export function quantile(ascArr, p) {
+  var H = (ascArr.length - 1) * p + 1;
+  var h = Math.floor(H);
+  var v = +ascArr[h - 1];
+  var e = H - h;
+  return e ? v + e * (ascArr[h] - v) : v;
+}
+/**
+ * Order intervals asc, and split them when overlap.
+ * expect(numberUtil.reformIntervals([
+ *     {interval: [18, 62], close: [1, 1]},
+ *     {interval: [-Infinity, -70], close: [0, 0]},
+ *     {interval: [-70, -26], close: [1, 1]},
+ *     {interval: [-26, 18], close: [1, 1]},
+ *     {interval: [62, 150], close: [1, 1]},
+ *     {interval: [106, 150], close: [1, 1]},
+ *     {interval: [150, Infinity], close: [0, 0]}
+ * ])).toEqual([
+ *     {interval: [-Infinity, -70], close: [0, 0]},
+ *     {interval: [-70, -26], close: [1, 1]},
+ *     {interval: [-26, 18], close: [0, 1]},
+ *     {interval: [18, 62], close: [0, 1]},
+ *     {interval: [62, 150], close: [0, 1]},
+ *     {interval: [150, Infinity], close: [0, 0]}
+ * ]);
+ * @param list, where `close` mean open or close
+ *        of the interval, and Infinity can be used.
+ * @return The origin list, which has been reformed.
+ */
+export function reformIntervals(list) {
+  list.sort(function (a, b) {
+    return littleThan(a, b, 0) ? -1 : 1;
+  });
+  var curr = -Infinity;
+  var currClose = 1;
+  for (var i = 0; i < list.length;) {
+    var interval = list[i].interval;
+    var close_1 = list[i].close;
+    for (var lg = 0; lg < 2; lg++) {
+      if (interval[lg] <= curr) {
+        interval[lg] = curr;
+        close_1[lg] = !lg ? 1 - currClose : 1;
+      }
+      curr = interval[lg];
+      currClose = close_1[lg];
+    }
+    if (interval[0] === interval[1] && close_1[0] * close_1[1] !== 1) {
+      list.splice(i, 1);
+    } else {
+      i++;
+    }
+  }
+  return list;
+  function littleThan(a, b, lg) {
+    return a.interval[lg] < b.interval[lg] || a.interval[lg] === b.interval[lg] && (a.close[lg] - b.close[lg] === (!lg ? 1 : -1) || !lg && littleThan(a, b, 1));
+  }
+}
+/**
+ * [Numeric is defined as]:
+ *     `parseFloat(val) == val`
+ * For example:
+ * numeric:
+ *     typeof number except NaN, '-123', '123', '2e3', '-2e3', '011', 'Infinity', Infinity,
+ *     and they rounded by white-spaces or line-terminal like ' -123 \n ' (see es spec)
+ * not-numeric:
+ *     null, undefined, [], {}, true, false, 'NaN', NaN, '123ab',
+ *     empty string, string with only white-spaces or line-terminal (see es spec),
+ *     0x12, '0x12', '-0x12', 012, '012', '-012',
+ *     non-string, ...
+ *
+ * @test See full test cases in `test/ut/spec/util/number.js`.
+ * @return Must be a typeof number. If not numeric, return NaN.
+ */
+export function numericToNumber(val) {
+  var valFloat = parseFloat(val);
+  return valFloat == val // eslint-disable-line eqeqeq
+  && (valFloat !== 0 || !zrUtil.isString(val) || val.indexOf('x') <= 0) // For case ' 0x0 '.
+  ? valFloat : NaN;
+}
+/**
+ * Definition of "numeric": see `numericToNumber`.
+ */
+export function isNumeric(val) {
+  return !isNaN(numericToNumber(val));
+}
+/**
+ * Use random base to prevent users hard code depending on
+ * this auto generated marker id.
+ * @return An positive integer.
+ */
+export function getRandomIdBase() {
+  return Math.round(Math.random() * 9);
+}
+/**
+ * Get the greatest common divisor.
+ *
+ * @param {number} a one number
+ * @param {number} b the other number
+ */
+export function getGreatestCommonDividor(a, b) {
+  if (b === 0) {
+    return a;
+  }
+  return getGreatestCommonDividor(b, a % b);
+}
+/**
+ * Get the least common multiple.
+ *
+ * @param {number} a one number
+ * @param {number} b the other number
+ */
+export function getLeastCommonMultiple(a, b) {
+  if (a == null) {
+    return b;
+  }
+  if (b == null) {
+    return a;
+  }
+  return a * b / getGreatestCommonDividor(a, b);
+}

frontend/node_modules/echarts/lib/util/quickSelect.js

@@ -0,0 +1,92 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+function defaultCompareFunc(a, b) {
+  return a - b;
+}
+function swapElement(arr, idx0, idx1) {
+  var tmp = arr[idx0];
+  arr[idx0] = arr[idx1];
+  arr[idx1] = tmp;
+}
+function select(arr, left, right, nth, compareFunc) {
+  var pivotIdx = left;
+  var pivotValue;
+  while (right > left) {
+    pivotIdx = Math.round((right + left) / 2);
+    pivotValue = arr[pivotIdx];
+    // Swap pivot to the end
+    swapElement(arr, pivotIdx, right);
+    pivotIdx = left;
+    for (var i = left; i <= right - 1; i++) {
+      if (compareFunc(pivotValue, arr[i]) >= 0) {
+        swapElement(arr, i, pivotIdx);
+        pivotIdx++;
+      }
+    }
+    swapElement(arr, right, pivotIdx);
+    if (pivotIdx === nth) {
+      return pivotIdx;
+    } else if (pivotIdx < nth) {
+      left = pivotIdx + 1;
+    } else {
+      right = pivotIdx - 1;
+    }
+  }
+  // Left == right
+  return left;
+}
+function quickSelect(arr, left, right, nth, compareFunc) {
+  if (arguments.length <= 3) {
+    nth = left;
+    if (arguments.length === 2) {
+      compareFunc = defaultCompareFunc;
+    } else {
+      compareFunc = right;
+    }
+    left = 0;
+    right = arr.length - 1;
+  }
+  return select(arr, left, right, nth, compareFunc);
+}
+export default quickSelect;

frontend/node_modules/echarts/lib/util/shape/sausage.js

@@ -0,0 +1,106 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import { Path } from '../graphic.js';
+/**
+ * Sausage: similar to sector, but have half circle on both sides
+ */
+var SausageShape = /** @class */function () {
+  function SausageShape() {
+    this.cx = 0;
+    this.cy = 0;
+    this.r0 = 0;
+    this.r = 0;
+    this.startAngle = 0;
+    this.endAngle = Math.PI * 2;
+    this.clockwise = true;
+  }
+  return SausageShape;
+}();
+var SausagePath = /** @class */function (_super) {
+  __extends(SausagePath, _super);
+  function SausagePath(opts) {
+    var _this = _super.call(this, opts) || this;
+    _this.type = 'sausage';
+    return _this;
+  }
+  SausagePath.prototype.getDefaultShape = function () {
+    return new SausageShape();
+  };
+  SausagePath.prototype.buildPath = function (ctx, shape) {
+    var cx = shape.cx;
+    var cy = shape.cy;
+    var r0 = Math.max(shape.r0 || 0, 0);
+    var r = Math.max(shape.r, 0);
+    var dr = (r - r0) * 0.5;
+    var rCenter = r0 + dr;
+    var startAngle = shape.startAngle;
+    var endAngle = shape.endAngle;
+    var clockwise = shape.clockwise;
+    var PI2 = Math.PI * 2;
+    var lessThanCircle = clockwise ? endAngle - startAngle < PI2 : startAngle - endAngle < PI2;
+    if (!lessThanCircle) {
+      // Normalize angles
+      startAngle = endAngle - (clockwise ? PI2 : -PI2);
+    }
+    var unitStartX = Math.cos(startAngle);
+    var unitStartY = Math.sin(startAngle);
+    var unitEndX = Math.cos(endAngle);
+    var unitEndY = Math.sin(endAngle);
+    if (lessThanCircle) {
+      ctx.moveTo(unitStartX * r0 + cx, unitStartY * r0 + cy);
+      ctx.arc(unitStartX * rCenter + cx, unitStartY * rCenter + cy, dr, -Math.PI + startAngle, startAngle, !clockwise);
+    } else {
+      ctx.moveTo(unitStartX * r + cx, unitStartY * r + cy);
+    }
+    ctx.arc(cx, cy, r, startAngle, endAngle, !clockwise);
+    ctx.arc(unitEndX * rCenter + cx, unitEndY * rCenter + cy, dr, endAngle - Math.PI * 2, endAngle - Math.PI, !clockwise);
+    if (r0 !== 0) {
+      ctx.arc(cx, cy, r0, endAngle, startAngle, clockwise);
+    }
+    // ctx.closePath();
+  };
+  return SausagePath;
+}(Path);
+export default SausagePath;

frontend/node_modules/echarts/lib/util/states.js

@@ -0,0 +1,704 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { extend, indexOf, isArrayLike, isObject, keys, isArray, each } from 'zrender/lib/core/util.js';
+import { getECData } from './innerStore.js';
+import { liftColor } from 'zrender/lib/tool/color.js';
+import { queryDataIndex, makeInner } from './model.js';
+import Path from 'zrender/lib/graphic/Path.js';
+import { error } from './log.js';
+// Reserve 0 as default.
+var _highlightNextDigit = 1;
+var _highlightKeyMap = {};
+var getSavedStates = makeInner();
+var getComponentStates = makeInner();
+export var HOVER_STATE_NORMAL = 0;
+export var HOVER_STATE_BLUR = 1;
+export var HOVER_STATE_EMPHASIS = 2;
+export var SPECIAL_STATES = ['emphasis', 'blur', 'select'];
+export var DISPLAY_STATES = ['normal', 'emphasis', 'blur', 'select'];
+export var Z2_EMPHASIS_LIFT = 10;
+export var Z2_SELECT_LIFT = 9;
+export var HIGHLIGHT_ACTION_TYPE = 'highlight';
+export var DOWNPLAY_ACTION_TYPE = 'downplay';
+export var SELECT_ACTION_TYPE = 'select';
+export var UNSELECT_ACTION_TYPE = 'unselect';
+export var TOGGLE_SELECT_ACTION_TYPE = 'toggleSelect';
+function hasFillOrStroke(fillOrStroke) {
+  return fillOrStroke != null && fillOrStroke !== 'none';
+}
+function doChangeHoverState(el, stateName, hoverStateEnum) {
+  if (el.onHoverStateChange && (el.hoverState || 0) !== hoverStateEnum) {
+    el.onHoverStateChange(stateName);
+  }
+  el.hoverState = hoverStateEnum;
+}
+function singleEnterEmphasis(el) {
+  // Only mark the flag.
+  // States will be applied in the echarts.ts in next frame.
+  doChangeHoverState(el, 'emphasis', HOVER_STATE_EMPHASIS);
+}
+function singleLeaveEmphasis(el) {
+  // Only mark the flag.
+  // States will be applied in the echarts.ts in next frame.
+  if (el.hoverState === HOVER_STATE_EMPHASIS) {
+    doChangeHoverState(el, 'normal', HOVER_STATE_NORMAL);
+  }
+}
+function singleEnterBlur(el) {
+  doChangeHoverState(el, 'blur', HOVER_STATE_BLUR);
+}
+function singleLeaveBlur(el) {
+  if (el.hoverState === HOVER_STATE_BLUR) {
+    doChangeHoverState(el, 'normal', HOVER_STATE_NORMAL);
+  }
+}
+function singleEnterSelect(el) {
+  el.selected = true;
+}
+function singleLeaveSelect(el) {
+  el.selected = false;
+}
+function updateElementState(el, updater, commonParam) {
+  updater(el, commonParam);
+}
+function traverseUpdateState(el, updater, commonParam) {
+  updateElementState(el, updater, commonParam);
+  el.isGroup && el.traverse(function (child) {
+    updateElementState(child, updater, commonParam);
+  });
+}
+export function setStatesFlag(el, stateName) {
+  switch (stateName) {
+    case 'emphasis':
+      el.hoverState = HOVER_STATE_EMPHASIS;
+      break;
+    case 'normal':
+      el.hoverState = HOVER_STATE_NORMAL;
+      break;
+    case 'blur':
+      el.hoverState = HOVER_STATE_BLUR;
+      break;
+    case 'select':
+      el.selected = true;
+  }
+}
+/**
+ * If we reuse elements when rerender.
+ * DON'T forget to clearStates before we update the style and shape.
+ * Or we may update on the wrong state instead of normal state.
+ */
+export function clearStates(el) {
+  if (el.isGroup) {
+    el.traverse(function (child) {
+      child.clearStates();
+    });
+  } else {
+    el.clearStates();
+  }
+}
+function getFromStateStyle(el, props, toStateName, defaultValue) {
+  var style = el.style;
+  var fromState = {};
+  for (var i = 0; i < props.length; i++) {
+    var propName = props[i];
+    var val = style[propName];
+    fromState[propName] = val == null ? defaultValue && defaultValue[propName] : val;
+  }
+  for (var i = 0; i < el.animators.length; i++) {
+    var animator = el.animators[i];
+    if (animator.__fromStateTransition
+    // Don't consider the animation to emphasis state.
+    && animator.__fromStateTransition.indexOf(toStateName) < 0 && animator.targetName === 'style') {
+      animator.saveTo(fromState, props);
+    }
+  }
+  return fromState;
+}
+function createEmphasisDefaultState(el, stateName, targetStates, state) {
+  var hasSelect = targetStates && indexOf(targetStates, 'select') >= 0;
+  var cloned = false;
+  if (el instanceof Path) {
+    var store = getSavedStates(el);
+    var fromFill = hasSelect ? store.selectFill || store.normalFill : store.normalFill;
+    var fromStroke = hasSelect ? store.selectStroke || store.normalStroke : store.normalStroke;
+    if (hasFillOrStroke(fromFill) || hasFillOrStroke(fromStroke)) {
+      state = state || {};
+      var emphasisStyle = state.style || {};
+      // inherit case
+      if (emphasisStyle.fill === 'inherit') {
+        cloned = true;
+        state = extend({}, state);
+        emphasisStyle = extend({}, emphasisStyle);
+        emphasisStyle.fill = fromFill;
+      }
+      // Apply default color lift
+      else if (!hasFillOrStroke(emphasisStyle.fill) && hasFillOrStroke(fromFill)) {
+        cloned = true;
+        // Not modify the original value.
+        state = extend({}, state);
+        emphasisStyle = extend({}, emphasisStyle);
+        // Already being applied 'emphasis'. DON'T lift color multiple times.
+        emphasisStyle.fill = liftColor(fromFill);
+      }
+      // Not highlight stroke if fill has been highlighted.
+      else if (!hasFillOrStroke(emphasisStyle.stroke) && hasFillOrStroke(fromStroke)) {
+        if (!cloned) {
+          state = extend({}, state);
+          emphasisStyle = extend({}, emphasisStyle);
+        }
+        emphasisStyle.stroke = liftColor(fromStroke);
+      }
+      state.style = emphasisStyle;
+    }
+  }
+  if (state) {
+    // TODO Share with textContent?
+    if (state.z2 == null) {
+      if (!cloned) {
+        state = extend({}, state);
+      }
+      var z2EmphasisLift = el.z2EmphasisLift;
+      state.z2 = el.z2 + (z2EmphasisLift != null ? z2EmphasisLift : Z2_EMPHASIS_LIFT);
+    }
+  }
+  return state;
+}
+function createSelectDefaultState(el, stateName, state) {
+  // const hasSelect = indexOf(el.currentStates, stateName) >= 0;
+  if (state) {
+    // TODO Share with textContent?
+    if (state.z2 == null) {
+      state = extend({}, state);
+      var z2SelectLift = el.z2SelectLift;
+      state.z2 = el.z2 + (z2SelectLift != null ? z2SelectLift : Z2_SELECT_LIFT);
+    }
+  }
+  return state;
+}
+function createBlurDefaultState(el, stateName, state) {
+  var hasBlur = indexOf(el.currentStates, stateName) >= 0;
+  var currentOpacity = el.style.opacity;
+  var fromState = !hasBlur ? getFromStateStyle(el, ['opacity'], stateName, {
+    opacity: 1
+  }) : null;
+  state = state || {};
+  var blurStyle = state.style || {};
+  if (blurStyle.opacity == null) {
+    // clone state
+    state = extend({}, state);
+    blurStyle = extend({
+      // Already being applied 'emphasis'. DON'T mul opacity multiple times.
+      opacity: hasBlur ? currentOpacity : fromState.opacity * 0.1
+    }, blurStyle);
+    state.style = blurStyle;
+  }
+  return state;
+}
+function elementStateProxy(stateName, targetStates) {
+  var state = this.states[stateName];
+  if (this.style) {
+    if (stateName === 'emphasis') {
+      return createEmphasisDefaultState(this, stateName, targetStates, state);
+    } else if (stateName === 'blur') {
+      return createBlurDefaultState(this, stateName, state);
+    } else if (stateName === 'select') {
+      return createSelectDefaultState(this, stateName, state);
+    }
+  }
+  return state;
+}
+/**
+ * Set hover style (namely "emphasis style") of element.
+ * @param el Should not be `zrender/graphic/Group`.
+ * @param focus 'self' | 'selfInSeries' | 'series'
+ */
+export function setDefaultStateProxy(el) {
+  el.stateProxy = elementStateProxy;
+  var textContent = el.getTextContent();
+  var textGuide = el.getTextGuideLine();
+  if (textContent) {
+    textContent.stateProxy = elementStateProxy;
+  }
+  if (textGuide) {
+    textGuide.stateProxy = elementStateProxy;
+  }
+}
+export function enterEmphasisWhenMouseOver(el, e) {
+  !shouldSilent(el, e)
+  // "emphasis" event highlight has higher priority than mouse highlight.
+  && !el.__highByOuter && traverseUpdateState(el, singleEnterEmphasis);
+}
+export function leaveEmphasisWhenMouseOut(el, e) {
+  !shouldSilent(el, e)
+  // "emphasis" event highlight has higher priority than mouse highlight.
+  && !el.__highByOuter && traverseUpdateState(el, singleLeaveEmphasis);
+}
+export function enterEmphasis(el, highlightDigit) {
+  el.__highByOuter |= 1 << (highlightDigit || 0);
+  traverseUpdateState(el, singleEnterEmphasis);
+}
+export function leaveEmphasis(el, highlightDigit) {
+  !(el.__highByOuter &= ~(1 << (highlightDigit || 0))) && traverseUpdateState(el, singleLeaveEmphasis);
+}
+export function enterBlur(el) {
+  traverseUpdateState(el, singleEnterBlur);
+}
+export function leaveBlur(el) {
+  traverseUpdateState(el, singleLeaveBlur);
+}
+export function enterSelect(el) {
+  traverseUpdateState(el, singleEnterSelect);
+}
+export function leaveSelect(el) {
+  traverseUpdateState(el, singleLeaveSelect);
+}
+function shouldSilent(el, e) {
+  return el.__highDownSilentOnTouch && e.zrByTouch;
+}
+export function allLeaveBlur(api) {
+  var model = api.getModel();
+  var leaveBlurredSeries = [];
+  var allComponentViews = [];
+  model.eachComponent(function (componentType, componentModel) {
+    var componentStates = getComponentStates(componentModel);
+    var isSeries = componentType === 'series';
+    var view = isSeries ? api.getViewOfSeriesModel(componentModel) : api.getViewOfComponentModel(componentModel);
+    !isSeries && allComponentViews.push(view);
+    if (componentStates.isBlured) {
+      // Leave blur anyway
+      view.group.traverse(function (child) {
+        singleLeaveBlur(child);
+      });
+      isSeries && leaveBlurredSeries.push(componentModel);
+    }
+    componentStates.isBlured = false;
+  });
+  each(allComponentViews, function (view) {
+    if (view && view.toggleBlurSeries) {
+      view.toggleBlurSeries(leaveBlurredSeries, false, model);
+    }
+  });
+}
+export function blurSeries(targetSeriesIndex, focus, blurScope, api) {
+  var ecModel = api.getModel();
+  blurScope = blurScope || 'coordinateSystem';
+  function leaveBlurOfIndices(data, dataIndices) {
+    for (var i = 0; i < dataIndices.length; i++) {
+      var itemEl = data.getItemGraphicEl(dataIndices[i]);
+      itemEl && leaveBlur(itemEl);
+    }
+  }
+  if (targetSeriesIndex == null) {
+    return;
+  }
+  if (!focus || focus === 'none') {
+    return;
+  }
+  var targetSeriesModel = ecModel.getSeriesByIndex(targetSeriesIndex);
+  var targetCoordSys = targetSeriesModel.coordinateSystem;
+  if (targetCoordSys && targetCoordSys.master) {
+    targetCoordSys = targetCoordSys.master;
+  }
+  var blurredSeries = [];
+  ecModel.eachSeries(function (seriesModel) {
+    var sameSeries = targetSeriesModel === seriesModel;
+    var coordSys = seriesModel.coordinateSystem;
+    if (coordSys && coordSys.master) {
+      coordSys = coordSys.master;
+    }
+    var sameCoordSys = coordSys && targetCoordSys ? coordSys === targetCoordSys : sameSeries; // If there is no coordinate system. use sameSeries instead.
+    if (!(
+    // Not blur other series if blurScope series
+    blurScope === 'series' && !sameSeries
+    // Not blur other coordinate system if blurScope is coordinateSystem
+    || blurScope === 'coordinateSystem' && !sameCoordSys
+    // Not blur self series if focus is series.
+    || focus === 'series' && sameSeries
+    // TODO blurScope: coordinate system
+    )) {
+      var view = api.getViewOfSeriesModel(seriesModel);
+      view.group.traverse(function (child) {
+        // For the elements that have been triggered by other components,
+        // and are still required to be highlighted,
+        // because the current is directly forced to blur the element,
+        // it will cause the focus self to be unable to highlight, so skip the blur of this element.
+        if (child.__highByOuter && sameSeries && focus === 'self') {
+          return;
+        }
+        singleEnterBlur(child);
+      });
+      if (isArrayLike(focus)) {
+        leaveBlurOfIndices(seriesModel.getData(), focus);
+      } else if (isObject(focus)) {
+        var dataTypes = keys(focus);
+        for (var d = 0; d < dataTypes.length; d++) {
+          leaveBlurOfIndices(seriesModel.getData(dataTypes[d]), focus[dataTypes[d]]);
+        }
+      }
+      blurredSeries.push(seriesModel);
+      getComponentStates(seriesModel).isBlured = true;
+    }
+  });
+  ecModel.eachComponent(function (componentType, componentModel) {
+    if (componentType === 'series') {
+      return;
+    }
+    var view = api.getViewOfComponentModel(componentModel);
+    if (view && view.toggleBlurSeries) {
+      view.toggleBlurSeries(blurredSeries, true, ecModel);
+    }
+  });
+}
+export function blurComponent(componentMainType, componentIndex, api) {
+  if (componentMainType == null || componentIndex == null) {
+    return;
+  }
+  var componentModel = api.getModel().getComponent(componentMainType, componentIndex);
+  if (!componentModel) {
+    return;
+  }
+  getComponentStates(componentModel).isBlured = true;
+  var view = api.getViewOfComponentModel(componentModel);
+  if (!view || !view.focusBlurEnabled) {
+    return;
+  }
+  view.group.traverse(function (child) {
+    singleEnterBlur(child);
+  });
+}
+export function blurSeriesFromHighlightPayload(seriesModel, payload, api) {
+  var seriesIndex = seriesModel.seriesIndex;
+  var data = seriesModel.getData(payload.dataType);
+  if (!data) {
+    if (process.env.NODE_ENV !== 'production') {
+      error("Unknown dataType " + payload.dataType);
+    }
+    return;
+  }
+  var dataIndex = queryDataIndex(data, payload);
+  // Pick the first one if there is multiple/none exists.
+  dataIndex = (isArray(dataIndex) ? dataIndex[0] : dataIndex) || 0;
+  var el = data.getItemGraphicEl(dataIndex);
+  if (!el) {
+    var count = data.count();
+    var current = 0;
+    // If data on dataIndex is NaN.
+    while (!el && current < count) {
+      el = data.getItemGraphicEl(current++);
+    }
+  }
+  if (el) {
+    var ecData = getECData(el);
+    blurSeries(seriesIndex, ecData.focus, ecData.blurScope, api);
+  } else {
+    // If there is no element put on the data. Try getting it from raw option
+    // TODO Should put it on seriesModel?
+    var focus_1 = seriesModel.get(['emphasis', 'focus']);
+    var blurScope = seriesModel.get(['emphasis', 'blurScope']);
+    if (focus_1 != null) {
+      blurSeries(seriesIndex, focus_1, blurScope, api);
+    }
+  }
+}
+export function findComponentHighDownDispatchers(componentMainType, componentIndex, name, api) {
+  var ret = {
+    focusSelf: false,
+    dispatchers: null
+  };
+  if (componentMainType == null || componentMainType === 'series' || componentIndex == null || name == null) {
+    return ret;
+  }
+  var componentModel = api.getModel().getComponent(componentMainType, componentIndex);
+  if (!componentModel) {
+    return ret;
+  }
+  var view = api.getViewOfComponentModel(componentModel);
+  if (!view || !view.findHighDownDispatchers) {
+    return ret;
+  }
+  var dispatchers = view.findHighDownDispatchers(name);
+  // At presnet, the component (like Geo) only blur inside itself.
+  // So we do not use `blurScope` in component.
+  var focusSelf;
+  for (var i = 0; i < dispatchers.length; i++) {
+    if (process.env.NODE_ENV !== 'production' && !isHighDownDispatcher(dispatchers[i])) {
+      error('param should be highDownDispatcher');
+    }
+    if (getECData(dispatchers[i]).focus === 'self') {
+      focusSelf = true;
+      break;
+    }
+  }
+  return {
+    focusSelf: focusSelf,
+    dispatchers: dispatchers
+  };
+}
+export function handleGlobalMouseOverForHighDown(dispatcher, e, api) {
+  if (process.env.NODE_ENV !== 'production' && !isHighDownDispatcher(dispatcher)) {
+    error('param should be highDownDispatcher');
+  }
+  var ecData = getECData(dispatcher);
+  var _a = findComponentHighDownDispatchers(ecData.componentMainType, ecData.componentIndex, ecData.componentHighDownName, api),
+    dispatchers = _a.dispatchers,
+    focusSelf = _a.focusSelf;
+  // If `findHighDownDispatchers` is supported on the component,
+  // highlight/downplay elements with the same name.
+  if (dispatchers) {
+    if (focusSelf) {
+      blurComponent(ecData.componentMainType, ecData.componentIndex, api);
+    }
+    each(dispatchers, function (dispatcher) {
+      return enterEmphasisWhenMouseOver(dispatcher, e);
+    });
+  } else {
+    // Try blur all in the related series. Then emphasis the hoverred.
+    // TODO. progressive mode.
+    blurSeries(ecData.seriesIndex, ecData.focus, ecData.blurScope, api);
+    if (ecData.focus === 'self') {
+      blurComponent(ecData.componentMainType, ecData.componentIndex, api);
+    }
+    // Other than series, component that not support `findHighDownDispatcher` will
+    // also use it. But in this case, highlight/downplay are only supported in
+    // mouse hover but not in dispatchAction.
+    enterEmphasisWhenMouseOver(dispatcher, e);
+  }
+}
+export function handleGlobalMouseOutForHighDown(dispatcher, e, api) {
+  if (process.env.NODE_ENV !== 'production' && !isHighDownDispatcher(dispatcher)) {
+    error('param should be highDownDispatcher');
+  }
+  allLeaveBlur(api);
+  var ecData = getECData(dispatcher);
+  var dispatchers = findComponentHighDownDispatchers(ecData.componentMainType, ecData.componentIndex, ecData.componentHighDownName, api).dispatchers;
+  if (dispatchers) {
+    each(dispatchers, function (dispatcher) {
+      return leaveEmphasisWhenMouseOut(dispatcher, e);
+    });
+  } else {
+    leaveEmphasisWhenMouseOut(dispatcher, e);
+  }
+}
+export function toggleSelectionFromPayload(seriesModel, payload, api) {
+  if (!isSelectChangePayload(payload)) {
+    return;
+  }
+  var dataType = payload.dataType;
+  var data = seriesModel.getData(dataType);
+  var dataIndex = queryDataIndex(data, payload);
+  if (!isArray(dataIndex)) {
+    dataIndex = [dataIndex];
+  }
+  seriesModel[payload.type === TOGGLE_SELECT_ACTION_TYPE ? 'toggleSelect' : payload.type === SELECT_ACTION_TYPE ? 'select' : 'unselect'](dataIndex, dataType);
+}
+export function updateSeriesElementSelection(seriesModel) {
+  var allData = seriesModel.getAllData();
+  each(allData, function (_a) {
+    var data = _a.data,
+      type = _a.type;
+    data.eachItemGraphicEl(function (el, idx) {
+      seriesModel.isSelected(idx, type) ? enterSelect(el) : leaveSelect(el);
+    });
+  });
+}
+export function getAllSelectedIndices(ecModel) {
+  var ret = [];
+  ecModel.eachSeries(function (seriesModel) {
+    var allData = seriesModel.getAllData();
+    each(allData, function (_a) {
+      var data = _a.data,
+        type = _a.type;
+      var dataIndices = seriesModel.getSelectedDataIndices();
+      if (dataIndices.length > 0) {
+        var item = {
+          dataIndex: dataIndices,
+          seriesIndex: seriesModel.seriesIndex
+        };
+        if (type != null) {
+          item.dataType = type;
+        }
+        ret.push(item);
+      }
+    });
+  });
+  return ret;
+}
+/**
+ * Enable the function that mouseover will trigger the emphasis state.
+ *
+ * NOTE:
+ * This function should be used on the element with dataIndex, seriesIndex.
+ *
+ */
+export function enableHoverEmphasis(el, focus, blurScope) {
+  setAsHighDownDispatcher(el, true);
+  traverseUpdateState(el, setDefaultStateProxy);
+  enableHoverFocus(el, focus, blurScope);
+}
+export function disableHoverEmphasis(el) {
+  setAsHighDownDispatcher(el, false);
+}
+export function toggleHoverEmphasis(el, focus, blurScope, isDisabled) {
+  isDisabled ? disableHoverEmphasis(el) : enableHoverEmphasis(el, focus, blurScope);
+}
+export function enableHoverFocus(el, focus, blurScope) {
+  var ecData = getECData(el);
+  if (focus != null) {
+    // TODO dataIndex may be set after this function. This check is not useful.
+    // if (ecData.dataIndex == null) {
+    //     if (__DEV__) {
+    //         console.warn('focus can only been set on element with dataIndex');
+    //     }
+    // }
+    // else {
+    ecData.focus = focus;
+    ecData.blurScope = blurScope;
+    // }
+  } else if (ecData.focus) {
+    ecData.focus = null;
+  }
+}
+var OTHER_STATES = ['emphasis', 'blur', 'select'];
+var defaultStyleGetterMap = {
+  itemStyle: 'getItemStyle',
+  lineStyle: 'getLineStyle',
+  areaStyle: 'getAreaStyle'
+};
+/**
+ * Set emphasis/blur/selected states of element.
+ */
+export function setStatesStylesFromModel(el, itemModel, styleType,
+// default itemStyle
+getter) {
+  styleType = styleType || 'itemStyle';
+  for (var i = 0; i < OTHER_STATES.length; i++) {
+    var stateName = OTHER_STATES[i];
+    var model = itemModel.getModel([stateName, styleType]);
+    var state = el.ensureState(stateName);
+    // Let it throw error if getterType is not found.
+    state.style = getter ? getter(model) : model[defaultStyleGetterMap[styleType]]();
+  }
+}
+/**
+ *
+ * Set element as highlight / downplay dispatcher.
+ * It will be checked when element received mouseover event or from highlight action.
+ * It's in change of all highlight/downplay behavior of it's children.
+ *
+ * @param el
+ * @param el.highDownSilentOnTouch
+ *        In touch device, mouseover event will be trigger on touchstart event
+ *        (see module:zrender/dom/HandlerProxy). By this mechanism, we can
+ *        conveniently use hoverStyle when tap on touch screen without additional
+ *        code for compatibility.
+ *        But if the chart/component has select feature, which usually also use
+ *        hoverStyle, there might be conflict between 'select-highlight' and
+ *        'hover-highlight' especially when roam is enabled (see geo for example).
+ *        In this case, `highDownSilentOnTouch` should be used to disable
+ *        hover-highlight on touch device.
+ * @param asDispatcher If `false`, do not set as "highDownDispatcher".
+ */
+export function setAsHighDownDispatcher(el, asDispatcher) {
+  var disable = asDispatcher === false;
+  var extendedEl = el;
+  // Make `highDownSilentOnTouch` and `onStateChange` only work after
+  // `setAsHighDownDispatcher` called. Avoid it is modified by user unexpectedly.
+  if (el.highDownSilentOnTouch) {
+    extendedEl.__highDownSilentOnTouch = el.highDownSilentOnTouch;
+  }
+  // Simple optimize, since this method might be
+  // called for each elements of a group in some cases.
+  if (!disable || extendedEl.__highDownDispatcher) {
+    // Emphasis, normal can be triggered manually by API or other components like hover link.
+    // el[method]('emphasis', onElementEmphasisEvent)[method]('normal', onElementNormalEvent);
+    // Also keep previous record.
+    extendedEl.__highByOuter = extendedEl.__highByOuter || 0;
+    extendedEl.__highDownDispatcher = !disable;
+  }
+}
+export function isHighDownDispatcher(el) {
+  return !!(el && el.__highDownDispatcher);
+}
+/**
+ * Enable component highlight/downplay features:
+ * + hover link (within the same name)
+ * + focus blur in component
+ */
+export function enableComponentHighDownFeatures(el, componentModel, componentHighDownName) {
+  var ecData = getECData(el);
+  ecData.componentMainType = componentModel.mainType;
+  ecData.componentIndex = componentModel.componentIndex;
+  ecData.componentHighDownName = componentHighDownName;
+}
+/**
+ * Support highlight/downplay record on each elements.
+ * For the case: hover highlight/downplay (legend, visualMap, ...) and
+ * user triggered highlight/downplay should not conflict.
+ * Only all of the highlightDigit cleared, return to normal.
+ * @param {string} highlightKey
+ * @return {number} highlightDigit
+ */
+export function getHighlightDigit(highlightKey) {
+  var highlightDigit = _highlightKeyMap[highlightKey];
+  if (highlightDigit == null && _highlightNextDigit <= 32) {
+    highlightDigit = _highlightKeyMap[highlightKey] = _highlightNextDigit++;
+  }
+  return highlightDigit;
+}
+export function isSelectChangePayload(payload) {
+  var payloadType = payload.type;
+  return payloadType === SELECT_ACTION_TYPE || payloadType === UNSELECT_ACTION_TYPE || payloadType === TOGGLE_SELECT_ACTION_TYPE;
+}
+export function isHighDownPayload(payload) {
+  var payloadType = payload.type;
+  return payloadType === HIGHLIGHT_ACTION_TYPE || payloadType === DOWNPLAY_ACTION_TYPE;
+}
+export function savePathStates(el) {
+  var store = getSavedStates(el);
+  store.normalFill = el.style.fill;
+  store.normalStroke = el.style.stroke;
+  var selectState = el.states.select || {};
+  store.selectFill = selectState.style && selectState.style.fill || null;
+  store.selectStroke = selectState.style && selectState.style.stroke || null;
+}

frontend/node_modules/echarts/lib/util/styleCompat.js

@@ -0,0 +1,226 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { each, hasOwn } from 'zrender/lib/core/util.js';
+var deprecatedLogs = {};
+/**
+ * Whether need to call `convertEC4CompatibleStyle`.
+ */
+export function isEC4CompatibleStyle(style, elType, hasOwnTextContentOption, hasOwnTextConfig) {
+  // Since echarts5, `RectText` is separated from its host element and style.text
+  // does not exist any more. The compat work brings some extra burden on performance.
+  // So we provide:
+  // `legacy: true` force make compat.
+  // `legacy: false`, force do not compat.
+  // `legacy` not set: auto detect whether legacy.
+  //     But in this case we do not compat (difficult to detect and rare case):
+  //     Becuse custom series and graphic component support "merge", users may firstly
+  //     only set `textStrokeWidth` style or secondly only set `text`.
+  return style && (style.legacy || style.legacy !== false && !hasOwnTextContentOption && !hasOwnTextConfig && elType !== 'tspan'
+  // Difficult to detect whether legacy for a "text" el.
+  && (elType === 'text' || hasOwn(style, 'text')));
+}
+/**
+ * `EC4CompatibleStyle` is style that might be in echarts4 format or echarts5 format.
+ * @param hostStyle The properties might be modified.
+ * @return If be text el, `textContentStyle` and `textConfig` will not be returned.
+ *         Otherwise a `textContentStyle` and `textConfig` will be created, whose props area
+ *         retried from the `hostStyle`.
+ */
+export function convertFromEC4CompatibleStyle(hostStyle, elType, isNormal) {
+  var srcStyle = hostStyle;
+  var textConfig;
+  var textContent;
+  var textContentStyle;
+  if (elType === 'text') {
+    textContentStyle = srcStyle;
+  } else {
+    textContentStyle = {};
+    hasOwn(srcStyle, 'text') && (textContentStyle.text = srcStyle.text);
+    hasOwn(srcStyle, 'rich') && (textContentStyle.rich = srcStyle.rich);
+    hasOwn(srcStyle, 'textFill') && (textContentStyle.fill = srcStyle.textFill);
+    hasOwn(srcStyle, 'textStroke') && (textContentStyle.stroke = srcStyle.textStroke);
+    hasOwn(srcStyle, 'fontFamily') && (textContentStyle.fontFamily = srcStyle.fontFamily);
+    hasOwn(srcStyle, 'fontSize') && (textContentStyle.fontSize = srcStyle.fontSize);
+    hasOwn(srcStyle, 'fontStyle') && (textContentStyle.fontStyle = srcStyle.fontStyle);
+    hasOwn(srcStyle, 'fontWeight') && (textContentStyle.fontWeight = srcStyle.fontWeight);
+    textContent = {
+      type: 'text',
+      style: textContentStyle,
+      // ec4 does not support rectText trigger.
+      // And when text position is different in normal and emphasis
+      // => hover text trigger emphasis;
+      // => text position changed, leave mouse pointer immediately;
+      // That might cause incorrect state.
+      silent: true
+    };
+    textConfig = {};
+    var hasOwnPos = hasOwn(srcStyle, 'textPosition');
+    if (isNormal) {
+      textConfig.position = hasOwnPos ? srcStyle.textPosition : 'inside';
+    } else {
+      hasOwnPos && (textConfig.position = srcStyle.textPosition);
+    }
+    hasOwn(srcStyle, 'textPosition') && (textConfig.position = srcStyle.textPosition);
+    hasOwn(srcStyle, 'textOffset') && (textConfig.offset = srcStyle.textOffset);
+    hasOwn(srcStyle, 'textRotation') && (textConfig.rotation = srcStyle.textRotation);
+    hasOwn(srcStyle, 'textDistance') && (textConfig.distance = srcStyle.textDistance);
+  }
+  convertEC4CompatibleRichItem(textContentStyle, hostStyle);
+  each(textContentStyle.rich, function (richItem) {
+    convertEC4CompatibleRichItem(richItem, richItem);
+  });
+  return {
+    textConfig: textConfig,
+    textContent: textContent
+  };
+}
+/**
+ * The result will be set to `out`.
+ */
+function convertEC4CompatibleRichItem(out, richItem) {
+  if (!richItem) {
+    return;
+  }
+  // (1) For simplicity, make textXXX properties (deprecated since ec5) has
+  // higher priority. For example, consider in ec4 `borderColor: 5, textBorderColor: 10`
+  // on a rect means `borderColor: 4` on the rect and `borderColor: 10` on an attached
+  // richText in ec5.
+  // (2) `out === richItem` if and only if `out` is text el or rich item.
+  // So we can overwrite existing props in `out` since textXXX has higher priority.
+  richItem.font = richItem.textFont || richItem.font;
+  hasOwn(richItem, 'textStrokeWidth') && (out.lineWidth = richItem.textStrokeWidth);
+  hasOwn(richItem, 'textAlign') && (out.align = richItem.textAlign);
+  hasOwn(richItem, 'textVerticalAlign') && (out.verticalAlign = richItem.textVerticalAlign);
+  hasOwn(richItem, 'textLineHeight') && (out.lineHeight = richItem.textLineHeight);
+  hasOwn(richItem, 'textWidth') && (out.width = richItem.textWidth);
+  hasOwn(richItem, 'textHeight') && (out.height = richItem.textHeight);
+  hasOwn(richItem, 'textBackgroundColor') && (out.backgroundColor = richItem.textBackgroundColor);
+  hasOwn(richItem, 'textPadding') && (out.padding = richItem.textPadding);
+  hasOwn(richItem, 'textBorderColor') && (out.borderColor = richItem.textBorderColor);
+  hasOwn(richItem, 'textBorderWidth') && (out.borderWidth = richItem.textBorderWidth);
+  hasOwn(richItem, 'textBorderRadius') && (out.borderRadius = richItem.textBorderRadius);
+  hasOwn(richItem, 'textBoxShadowColor') && (out.shadowColor = richItem.textBoxShadowColor);
+  hasOwn(richItem, 'textBoxShadowBlur') && (out.shadowBlur = richItem.textBoxShadowBlur);
+  hasOwn(richItem, 'textBoxShadowOffsetX') && (out.shadowOffsetX = richItem.textBoxShadowOffsetX);
+  hasOwn(richItem, 'textBoxShadowOffsetY') && (out.shadowOffsetY = richItem.textBoxShadowOffsetY);
+}
+/**
+ * Convert to pure echarts4 format style.
+ * `itemStyle` will be modified, added with ec4 style properties from
+ * `textStyle` and `textConfig`.
+ *
+ * [Caveat]: For simplicity, `insideRollback` in ec4 does not compat, where
+ * `styleEmphasis: {textFill: 'red'}` will remove the normal auto added stroke.
+ */
+export function convertToEC4StyleForCustomSerise(itemStl, txStl, txCfg) {
+  var out = itemStl;
+  // See `custom.ts`, a trick to set extra `textPosition` firstly.
+  out.textPosition = out.textPosition || txCfg.position || 'inside';
+  txCfg.offset != null && (out.textOffset = txCfg.offset);
+  txCfg.rotation != null && (out.textRotation = txCfg.rotation);
+  txCfg.distance != null && (out.textDistance = txCfg.distance);
+  var isInside = out.textPosition.indexOf('inside') >= 0;
+  var hostFill = itemStl.fill || '#000';
+  convertToEC4RichItem(out, txStl);
+  var textFillNotSet = out.textFill == null;
+  if (isInside) {
+    if (textFillNotSet) {
+      out.textFill = txCfg.insideFill || '#fff';
+      !out.textStroke && txCfg.insideStroke && (out.textStroke = txCfg.insideStroke);
+      !out.textStroke && (out.textStroke = hostFill);
+      out.textStrokeWidth == null && (out.textStrokeWidth = 2);
+    }
+  } else {
+    if (textFillNotSet) {
+      out.textFill = itemStl.fill || txCfg.outsideFill || '#000';
+    }
+    !out.textStroke && txCfg.outsideStroke && (out.textStroke = txCfg.outsideStroke);
+  }
+  out.text = txStl.text;
+  out.rich = txStl.rich;
+  each(txStl.rich, function (richItem) {
+    convertToEC4RichItem(richItem, richItem);
+  });
+  return out;
+}
+function convertToEC4RichItem(out, richItem) {
+  if (!richItem) {
+    return;
+  }
+  hasOwn(richItem, 'fill') && (out.textFill = richItem.fill);
+  hasOwn(richItem, 'stroke') && (out.textStroke = richItem.fill);
+  hasOwn(richItem, 'lineWidth') && (out.textStrokeWidth = richItem.lineWidth);
+  hasOwn(richItem, 'font') && (out.font = richItem.font);
+  hasOwn(richItem, 'fontStyle') && (out.fontStyle = richItem.fontStyle);
+  hasOwn(richItem, 'fontWeight') && (out.fontWeight = richItem.fontWeight);
+  hasOwn(richItem, 'fontSize') && (out.fontSize = richItem.fontSize);
+  hasOwn(richItem, 'fontFamily') && (out.fontFamily = richItem.fontFamily);
+  hasOwn(richItem, 'align') && (out.textAlign = richItem.align);
+  hasOwn(richItem, 'verticalAlign') && (out.textVerticalAlign = richItem.verticalAlign);
+  hasOwn(richItem, 'lineHeight') && (out.textLineHeight = richItem.lineHeight);
+  hasOwn(richItem, 'width') && (out.textWidth = richItem.width);
+  hasOwn(richItem, 'height') && (out.textHeight = richItem.height);
+  hasOwn(richItem, 'backgroundColor') && (out.textBackgroundColor = richItem.backgroundColor);
+  hasOwn(richItem, 'padding') && (out.textPadding = richItem.padding);
+  hasOwn(richItem, 'borderColor') && (out.textBorderColor = richItem.borderColor);
+  hasOwn(richItem, 'borderWidth') && (out.textBorderWidth = richItem.borderWidth);
+  hasOwn(richItem, 'borderRadius') && (out.textBorderRadius = richItem.borderRadius);
+  hasOwn(richItem, 'shadowColor') && (out.textBoxShadowColor = richItem.shadowColor);
+  hasOwn(richItem, 'shadowBlur') && (out.textBoxShadowBlur = richItem.shadowBlur);
+  hasOwn(richItem, 'shadowOffsetX') && (out.textBoxShadowOffsetX = richItem.shadowOffsetX);
+  hasOwn(richItem, 'shadowOffsetY') && (out.textBoxShadowOffsetY = richItem.shadowOffsetY);
+  hasOwn(richItem, 'textShadowColor') && (out.textShadowColor = richItem.textShadowColor);
+  hasOwn(richItem, 'textShadowBlur') && (out.textShadowBlur = richItem.textShadowBlur);
+  hasOwn(richItem, 'textShadowOffsetX') && (out.textShadowOffsetX = richItem.textShadowOffsetX);
+  hasOwn(richItem, 'textShadowOffsetY') && (out.textShadowOffsetY = richItem.textShadowOffsetY);
+}
+export function warnDeprecated(deprecated, insteadApproach) {
+  if (process.env.NODE_ENV !== 'production') {
+    var key = deprecated + '^_^' + insteadApproach;
+    if (!deprecatedLogs[key]) {
+      console.warn("[ECharts] DEPRECATED: \"" + deprecated + "\" has been deprecated. " + insteadApproach);
+      deprecatedLogs[key] = true;
+    }
+  }
+}

frontend/node_modules/echarts/lib/util/symbol.js

@@ -0,0 +1,334 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+// Symbol factory
+import { each, isArray, retrieve2 } from 'zrender/lib/core/util.js';
+import * as graphic from './graphic.js';
+import BoundingRect from 'zrender/lib/core/BoundingRect.js';
+import { calculateTextPosition } from 'zrender/lib/contain/text.js';
+import { parsePercent } from './number.js';
+/**
+ * Triangle shape
+ * @inner
+ */
+var Triangle = graphic.Path.extend({
+  type: 'triangle',
+  shape: {
+    cx: 0,
+    cy: 0,
+    width: 0,
+    height: 0
+  },
+  buildPath: function (path, shape) {
+    var cx = shape.cx;
+    var cy = shape.cy;
+    var width = shape.width / 2;
+    var height = shape.height / 2;
+    path.moveTo(cx, cy - height);
+    path.lineTo(cx + width, cy + height);
+    path.lineTo(cx - width, cy + height);
+    path.closePath();
+  }
+});
+/**
+ * Diamond shape
+ * @inner
+ */
+var Diamond = graphic.Path.extend({
+  type: 'diamond',
+  shape: {
+    cx: 0,
+    cy: 0,
+    width: 0,
+    height: 0
+  },
+  buildPath: function (path, shape) {
+    var cx = shape.cx;
+    var cy = shape.cy;
+    var width = shape.width / 2;
+    var height = shape.height / 2;
+    path.moveTo(cx, cy - height);
+    path.lineTo(cx + width, cy);
+    path.lineTo(cx, cy + height);
+    path.lineTo(cx - width, cy);
+    path.closePath();
+  }
+});
+/**
+ * Pin shape
+ * @inner
+ */
+var Pin = graphic.Path.extend({
+  type: 'pin',
+  shape: {
+    // x, y on the cusp
+    x: 0,
+    y: 0,
+    width: 0,
+    height: 0
+  },
+  buildPath: function (path, shape) {
+    var x = shape.x;
+    var y = shape.y;
+    var w = shape.width / 5 * 3;
+    // Height must be larger than width
+    var h = Math.max(w, shape.height);
+    var r = w / 2;
+    // Dist on y with tangent point and circle center
+    var dy = r * r / (h - r);
+    var cy = y - h + r + dy;
+    var angle = Math.asin(dy / r);
+    // Dist on x with tangent point and circle center
+    var dx = Math.cos(angle) * r;
+    var tanX = Math.sin(angle);
+    var tanY = Math.cos(angle);
+    var cpLen = r * 0.6;
+    var cpLen2 = r * 0.7;
+    path.moveTo(x - dx, cy + dy);
+    path.arc(x, cy, r, Math.PI - angle, Math.PI * 2 + angle);
+    path.bezierCurveTo(x + dx - tanX * cpLen, cy + dy + tanY * cpLen, x, y - cpLen2, x, y);
+    path.bezierCurveTo(x, y - cpLen2, x - dx + tanX * cpLen, cy + dy + tanY * cpLen, x - dx, cy + dy);
+    path.closePath();
+  }
+});
+/**
+ * Arrow shape
+ * @inner
+ */
+var Arrow = graphic.Path.extend({
+  type: 'arrow',
+  shape: {
+    x: 0,
+    y: 0,
+    width: 0,
+    height: 0
+  },
+  buildPath: function (ctx, shape) {
+    var height = shape.height;
+    var width = shape.width;
+    var x = shape.x;
+    var y = shape.y;
+    var dx = width / 3 * 2;
+    ctx.moveTo(x, y);
+    ctx.lineTo(x + dx, y + height);
+    ctx.lineTo(x, y + height / 4 * 3);
+    ctx.lineTo(x - dx, y + height);
+    ctx.lineTo(x, y);
+    ctx.closePath();
+  }
+});
+/**
+ * Map of path constructors
+ */
+// TODO Use function to build symbol path.
+var symbolCtors = {
+  line: graphic.Line,
+  rect: graphic.Rect,
+  roundRect: graphic.Rect,
+  square: graphic.Rect,
+  circle: graphic.Circle,
+  diamond: Diamond,
+  pin: Pin,
+  arrow: Arrow,
+  triangle: Triangle
+};
+var symbolShapeMakers = {
+  line: function (x, y, w, h, shape) {
+    shape.x1 = x;
+    shape.y1 = y + h / 2;
+    shape.x2 = x + w;
+    shape.y2 = y + h / 2;
+  },
+  rect: function (x, y, w, h, shape) {
+    shape.x = x;
+    shape.y = y;
+    shape.width = w;
+    shape.height = h;
+  },
+  roundRect: function (x, y, w, h, shape) {
+    shape.x = x;
+    shape.y = y;
+    shape.width = w;
+    shape.height = h;
+    shape.r = Math.min(w, h) / 4;
+  },
+  square: function (x, y, w, h, shape) {
+    var size = Math.min(w, h);
+    shape.x = x;
+    shape.y = y;
+    shape.width = size;
+    shape.height = size;
+  },
+  circle: function (x, y, w, h, shape) {
+    // Put circle in the center of square
+    shape.cx = x + w / 2;
+    shape.cy = y + h / 2;
+    shape.r = Math.min(w, h) / 2;
+  },
+  diamond: function (x, y, w, h, shape) {
+    shape.cx = x + w / 2;
+    shape.cy = y + h / 2;
+    shape.width = w;
+    shape.height = h;
+  },
+  pin: function (x, y, w, h, shape) {
+    shape.x = x + w / 2;
+    shape.y = y + h / 2;
+    shape.width = w;
+    shape.height = h;
+  },
+  arrow: function (x, y, w, h, shape) {
+    shape.x = x + w / 2;
+    shape.y = y + h / 2;
+    shape.width = w;
+    shape.height = h;
+  },
+  triangle: function (x, y, w, h, shape) {
+    shape.cx = x + w / 2;
+    shape.cy = y + h / 2;
+    shape.width = w;
+    shape.height = h;
+  }
+};
+export var symbolBuildProxies = {};
+each(symbolCtors, function (Ctor, name) {
+  symbolBuildProxies[name] = new Ctor();
+});
+var SymbolClz = graphic.Path.extend({
+  type: 'symbol',
+  shape: {
+    symbolType: '',
+    x: 0,
+    y: 0,
+    width: 0,
+    height: 0
+  },
+  calculateTextPosition: function (out, config, rect) {
+    var res = calculateTextPosition(out, config, rect);
+    var shape = this.shape;
+    if (shape && shape.symbolType === 'pin' && config.position === 'inside') {
+      res.y = rect.y + rect.height * 0.4;
+    }
+    return res;
+  },
+  buildPath: function (ctx, shape, inBundle) {
+    var symbolType = shape.symbolType;
+    if (symbolType !== 'none') {
+      var proxySymbol = symbolBuildProxies[symbolType];
+      if (!proxySymbol) {
+        // Default rect
+        symbolType = 'rect';
+        proxySymbol = symbolBuildProxies[symbolType];
+      }
+      symbolShapeMakers[symbolType](shape.x, shape.y, shape.width, shape.height, proxySymbol.shape);
+      proxySymbol.buildPath(ctx, proxySymbol.shape, inBundle);
+    }
+  }
+});
+// Provide setColor helper method to avoid determine if set the fill or stroke outside
+function symbolPathSetColor(color, innerColor) {
+  if (this.type !== 'image') {
+    var symbolStyle = this.style;
+    if (this.__isEmptyBrush) {
+      symbolStyle.stroke = color;
+      symbolStyle.fill = innerColor || '#fff';
+      // TODO Same width with lineStyle in LineView
+      symbolStyle.lineWidth = 2;
+    } else if (this.shape.symbolType === 'line') {
+      symbolStyle.stroke = color;
+    } else {
+      symbolStyle.fill = color;
+    }
+    this.markRedraw();
+  }
+}
+/**
+ * Create a symbol element with given symbol configuration: shape, x, y, width, height, color
+ */
+export function createSymbol(symbolType, x, y, w, h, color,
+// whether to keep the ratio of w/h,
+keepAspect) {
+  // TODO Support image object, DynamicImage.
+  var isEmpty = symbolType.indexOf('empty') === 0;
+  if (isEmpty) {
+    symbolType = symbolType.substr(5, 1).toLowerCase() + symbolType.substr(6);
+  }
+  var symbolPath;
+  if (symbolType.indexOf('image://') === 0) {
+    symbolPath = graphic.makeImage(symbolType.slice(8), new BoundingRect(x, y, w, h), keepAspect ? 'center' : 'cover');
+  } else if (symbolType.indexOf('path://') === 0) {
+    symbolPath = graphic.makePath(symbolType.slice(7), {}, new BoundingRect(x, y, w, h), keepAspect ? 'center' : 'cover');
+  } else {
+    symbolPath = new SymbolClz({
+      shape: {
+        symbolType: symbolType,
+        x: x,
+        y: y,
+        width: w,
+        height: h
+      }
+    });
+  }
+  symbolPath.__isEmptyBrush = isEmpty;
+  // TODO Should deprecate setColor
+  symbolPath.setColor = symbolPathSetColor;
+  if (color) {
+    symbolPath.setColor(color);
+  }
+  return symbolPath;
+}
+export function normalizeSymbolSize(symbolSize) {
+  if (!isArray(symbolSize)) {
+    symbolSize = [+symbolSize, +symbolSize];
+  }
+  return [symbolSize[0] || 0, symbolSize[1] || 0];
+}
+export function normalizeSymbolOffset(symbolOffset, symbolSize) {
+  if (symbolOffset == null) {
+    return;
+  }
+  if (!isArray(symbolOffset)) {
+    symbolOffset = [symbolOffset, symbolOffset];
+  }
+  return [parsePercent(symbolOffset[0], symbolSize[0]) || 0, parsePercent(retrieve2(symbolOffset[1], symbolOffset[0]), symbolSize[1]) || 0];
+}

frontend/node_modules/echarts/lib/util/throttle.js

@@ -0,0 +1,172 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+var ORIGIN_METHOD = '\0__throttleOriginMethod';
+var RATE = '\0__throttleRate';
+var THROTTLE_TYPE = '\0__throttleType';
+;
+/**
+ * @public
+ * @param {(Function)} fn
+ * @param {number} [delay=0] Unit: ms.
+ * @param {boolean} [debounce=false]
+ *        true: If call interval less than `delay`, only the last call works.
+ *        false: If call interval less than `delay, call works on fixed rate.
+ * @return {(Function)} throttled fn.
+ */
+export function throttle(fn, delay, debounce) {
+  var currCall;
+  var lastCall = 0;
+  var lastExec = 0;
+  var timer = null;
+  var diff;
+  var scope;
+  var args;
+  var debounceNextCall;
+  delay = delay || 0;
+  function exec() {
+    lastExec = new Date().getTime();
+    timer = null;
+    fn.apply(scope, args || []);
+  }
+  var cb = function () {
+    var cbArgs = [];
+    for (var _i = 0; _i < arguments.length; _i++) {
+      cbArgs[_i] = arguments[_i];
+    }
+    currCall = new Date().getTime();
+    scope = this;
+    args = cbArgs;
+    var thisDelay = debounceNextCall || delay;
+    var thisDebounce = debounceNextCall || debounce;
+    debounceNextCall = null;
+    diff = currCall - (thisDebounce ? lastCall : lastExec) - thisDelay;
+    clearTimeout(timer);
+    // Here we should make sure that: the `exec` SHOULD NOT be called later
+    // than a new call of `cb`, that is, preserving the command order. Consider
+    // calculating "scale rate" when roaming as an example. When a call of `cb`
+    // happens, either the `exec` is called dierectly, or the call is delayed.
+    // But the delayed call should never be later than next call of `cb`. Under
+    // this assurance, we can simply update view state each time `dispatchAction`
+    // triggered by user roaming, but not need to add extra code to avoid the
+    // state being "rolled-back".
+    if (thisDebounce) {
+      timer = setTimeout(exec, thisDelay);
+    } else {
+      if (diff >= 0) {
+        exec();
+      } else {
+        timer = setTimeout(exec, -diff);
+      }
+    }
+    lastCall = currCall;
+  };
+  /**
+   * Clear throttle.
+   * @public
+   */
+  cb.clear = function () {
+    if (timer) {
+      clearTimeout(timer);
+      timer = null;
+    }
+  };
+  /**
+   * Enable debounce once.
+   */
+  cb.debounceNextCall = function (debounceDelay) {
+    debounceNextCall = debounceDelay;
+  };
+  return cb;
+}
+/**
+ * Create throttle method or update throttle rate.
+ *
+ * @example
+ * ComponentView.prototype.render = function () {
+ *     ...
+ *     throttle.createOrUpdate(
+ *         this,
+ *         '_dispatchAction',
+ *         this.model.get('throttle'),
+ *         'fixRate'
+ *     );
+ * };
+ * ComponentView.prototype.remove = function () {
+ *     throttle.clear(this, '_dispatchAction');
+ * };
+ * ComponentView.prototype.dispose = function () {
+ *     throttle.clear(this, '_dispatchAction');
+ * };
+ *
+ */
+export function createOrUpdate(obj, fnAttr, rate, throttleType) {
+  var fn = obj[fnAttr];
+  if (!fn) {
+    return;
+  }
+  var originFn = fn[ORIGIN_METHOD] || fn;
+  var lastThrottleType = fn[THROTTLE_TYPE];
+  var lastRate = fn[RATE];
+  if (lastRate !== rate || lastThrottleType !== throttleType) {
+    if (rate == null || !throttleType) {
+      return obj[fnAttr] = originFn;
+    }
+    fn = obj[fnAttr] = throttle(originFn, rate, throttleType === 'debounce');
+    fn[ORIGIN_METHOD] = originFn;
+    fn[THROTTLE_TYPE] = throttleType;
+    fn[RATE] = rate;
+  }
+  return fn;
+}
+/**
+ * Clear throttle. Example see throttle.createOrUpdate.
+ */
+export function clear(obj, fnAttr) {
+  var fn = obj[fnAttr];
+  if (fn && fn[ORIGIN_METHOD]) {
+    // Clear throttle
+    fn.clear && fn.clear();
+    obj[fnAttr] = fn[ORIGIN_METHOD];
+  }
+}

frontend/node_modules/echarts/lib/util/time.js

@@ -0,0 +1,273 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+import * as numberUtil from './number.js';
+import { getDefaultLocaleModel, getLocaleModel, SYSTEM_LANG } from '../core/locale.js';
+import Model from '../model/Model.js';
+export var ONE_SECOND = 1000;
+export var ONE_MINUTE = ONE_SECOND * 60;
+export var ONE_HOUR = ONE_MINUTE * 60;
+export var ONE_DAY = ONE_HOUR * 24;
+export var ONE_YEAR = ONE_DAY * 365;
+export var defaultLeveledFormatter = {
+  year: '{yyyy}',
+  month: '{MMM}',
+  day: '{d}',
+  hour: '{HH}:{mm}',
+  minute: '{HH}:{mm}',
+  second: '{HH}:{mm}:{ss}',
+  millisecond: '{HH}:{mm}:{ss} {SSS}',
+  none: '{yyyy}-{MM}-{dd} {HH}:{mm}:{ss} {SSS}'
+};
+var fullDayFormatter = '{yyyy}-{MM}-{dd}';
+export var fullLeveledFormatter = {
+  year: '{yyyy}',
+  month: '{yyyy}-{MM}',
+  day: fullDayFormatter,
+  hour: fullDayFormatter + ' ' + defaultLeveledFormatter.hour,
+  minute: fullDayFormatter + ' ' + defaultLeveledFormatter.minute,
+  second: fullDayFormatter + ' ' + defaultLeveledFormatter.second,
+  millisecond: defaultLeveledFormatter.none
+};
+export var primaryTimeUnits = ['year', 'month', 'day', 'hour', 'minute', 'second', 'millisecond'];
+export var timeUnits = ['year', 'half-year', 'quarter', 'month', 'week', 'half-week', 'day', 'half-day', 'quarter-day', 'hour', 'minute', 'second', 'millisecond'];
+export function pad(str, len) {
+  str += '';
+  return '0000'.substr(0, len - str.length) + str;
+}
+export function getPrimaryTimeUnit(timeUnit) {
+  switch (timeUnit) {
+    case 'half-year':
+    case 'quarter':
+      return 'month';
+    case 'week':
+    case 'half-week':
+      return 'day';
+    case 'half-day':
+    case 'quarter-day':
+      return 'hour';
+    default:
+      // year, minutes, second, milliseconds
+      return timeUnit;
+  }
+}
+export function isPrimaryTimeUnit(timeUnit) {
+  return timeUnit === getPrimaryTimeUnit(timeUnit);
+}
+export function getDefaultFormatPrecisionOfInterval(timeUnit) {
+  switch (timeUnit) {
+    case 'year':
+    case 'month':
+      return 'day';
+    case 'millisecond':
+      return 'millisecond';
+    default:
+      // Also for day, hour, minute, second
+      return 'second';
+  }
+}
+export function format(
+// Note: The result based on `isUTC` are totally different, which can not be just simply
+// substituted by the result without `isUTC`. So we make the param `isUTC` mandatory.
+time, template, isUTC, lang) {
+  var date = numberUtil.parseDate(time);
+  var y = date[fullYearGetterName(isUTC)]();
+  var M = date[monthGetterName(isUTC)]() + 1;
+  var q = Math.floor((M - 1) / 3) + 1;
+  var d = date[dateGetterName(isUTC)]();
+  var e = date['get' + (isUTC ? 'UTC' : '') + 'Day']();
+  var H = date[hoursGetterName(isUTC)]();
+  var h = (H - 1) % 12 + 1;
+  var m = date[minutesGetterName(isUTC)]();
+  var s = date[secondsGetterName(isUTC)]();
+  var S = date[millisecondsGetterName(isUTC)]();
+  var a = H >= 12 ? 'pm' : 'am';
+  var A = a.toUpperCase();
+  var localeModel = lang instanceof Model ? lang : getLocaleModel(lang || SYSTEM_LANG) || getDefaultLocaleModel();
+  var timeModel = localeModel.getModel('time');
+  var month = timeModel.get('month');
+  var monthAbbr = timeModel.get('monthAbbr');
+  var dayOfWeek = timeModel.get('dayOfWeek');
+  var dayOfWeekAbbr = timeModel.get('dayOfWeekAbbr');
+  return (template || '').replace(/{a}/g, a + '').replace(/{A}/g, A + '').replace(/{yyyy}/g, y + '').replace(/{yy}/g, pad(y % 100 + '', 2)).replace(/{Q}/g, q + '').replace(/{MMMM}/g, month[M - 1]).replace(/{MMM}/g, monthAbbr[M - 1]).replace(/{MM}/g, pad(M, 2)).replace(/{M}/g, M + '').replace(/{dd}/g, pad(d, 2)).replace(/{d}/g, d + '').replace(/{eeee}/g, dayOfWeek[e]).replace(/{ee}/g, dayOfWeekAbbr[e]).replace(/{e}/g, e + '').replace(/{HH}/g, pad(H, 2)).replace(/{H}/g, H + '').replace(/{hh}/g, pad(h + '', 2)).replace(/{h}/g, h + '').replace(/{mm}/g, pad(m, 2)).replace(/{m}/g, m + '').replace(/{ss}/g, pad(s, 2)).replace(/{s}/g, s + '').replace(/{SSS}/g, pad(S, 3)).replace(/{S}/g, S + '');
+}
+export function leveledFormat(tick, idx, formatter, lang, isUTC) {
+  var template = null;
+  if (zrUtil.isString(formatter)) {
+    // Single formatter for all units at all levels
+    template = formatter;
+  } else if (zrUtil.isFunction(formatter)) {
+    // Callback formatter
+    template = formatter(tick.value, idx, {
+      level: tick.level
+    });
+  } else {
+    var defaults = zrUtil.extend({}, defaultLeveledFormatter);
+    if (tick.level > 0) {
+      for (var i = 0; i < primaryTimeUnits.length; ++i) {
+        defaults[primaryTimeUnits[i]] = "{primary|" + defaults[primaryTimeUnits[i]] + "}";
+      }
+    }
+    var mergedFormatter = formatter ? formatter.inherit === false ? formatter // Use formatter with bigger units
+    : zrUtil.defaults(formatter, defaults) : defaults;
+    var unit = getUnitFromValue(tick.value, isUTC);
+    if (mergedFormatter[unit]) {
+      template = mergedFormatter[unit];
+    } else if (mergedFormatter.inherit) {
+      // Unit formatter is not defined and should inherit from bigger units
+      var targetId = timeUnits.indexOf(unit);
+      for (var i = targetId - 1; i >= 0; --i) {
+        if (mergedFormatter[unit]) {
+          template = mergedFormatter[unit];
+          break;
+        }
+      }
+      template = template || defaults.none;
+    }
+    if (zrUtil.isArray(template)) {
+      var levelId = tick.level == null ? 0 : tick.level >= 0 ? tick.level : template.length + tick.level;
+      levelId = Math.min(levelId, template.length - 1);
+      template = template[levelId];
+    }
+  }
+  return format(new Date(tick.value), template, isUTC, lang);
+}
+export function getUnitFromValue(value, isUTC) {
+  var date = numberUtil.parseDate(value);
+  var M = date[monthGetterName(isUTC)]() + 1;
+  var d = date[dateGetterName(isUTC)]();
+  var h = date[hoursGetterName(isUTC)]();
+  var m = date[minutesGetterName(isUTC)]();
+  var s = date[secondsGetterName(isUTC)]();
+  var S = date[millisecondsGetterName(isUTC)]();
+  var isSecond = S === 0;
+  var isMinute = isSecond && s === 0;
+  var isHour = isMinute && m === 0;
+  var isDay = isHour && h === 0;
+  var isMonth = isDay && d === 1;
+  var isYear = isMonth && M === 1;
+  if (isYear) {
+    return 'year';
+  } else if (isMonth) {
+    return 'month';
+  } else if (isDay) {
+    return 'day';
+  } else if (isHour) {
+    return 'hour';
+  } else if (isMinute) {
+    return 'minute';
+  } else if (isSecond) {
+    return 'second';
+  } else {
+    return 'millisecond';
+  }
+}
+export function getUnitValue(value, unit, isUTC) {
+  var date = zrUtil.isNumber(value) ? numberUtil.parseDate(value) : value;
+  unit = unit || getUnitFromValue(value, isUTC);
+  switch (unit) {
+    case 'year':
+      return date[fullYearGetterName(isUTC)]();
+    case 'half-year':
+      return date[monthGetterName(isUTC)]() >= 6 ? 1 : 0;
+    case 'quarter':
+      return Math.floor((date[monthGetterName(isUTC)]() + 1) / 4);
+    case 'month':
+      return date[monthGetterName(isUTC)]();
+    case 'day':
+      return date[dateGetterName(isUTC)]();
+    case 'half-day':
+      return date[hoursGetterName(isUTC)]() / 24;
+    case 'hour':
+      return date[hoursGetterName(isUTC)]();
+    case 'minute':
+      return date[minutesGetterName(isUTC)]();
+    case 'second':
+      return date[secondsGetterName(isUTC)]();
+    case 'millisecond':
+      return date[millisecondsGetterName(isUTC)]();
+  }
+}
+export function fullYearGetterName(isUTC) {
+  return isUTC ? 'getUTCFullYear' : 'getFullYear';
+}
+export function monthGetterName(isUTC) {
+  return isUTC ? 'getUTCMonth' : 'getMonth';
+}
+export function dateGetterName(isUTC) {
+  return isUTC ? 'getUTCDate' : 'getDate';
+}
+export function hoursGetterName(isUTC) {
+  return isUTC ? 'getUTCHours' : 'getHours';
+}
+export function minutesGetterName(isUTC) {
+  return isUTC ? 'getUTCMinutes' : 'getMinutes';
+}
+export function secondsGetterName(isUTC) {
+  return isUTC ? 'getUTCSeconds' : 'getSeconds';
+}
+export function millisecondsGetterName(isUTC) {
+  return isUTC ? 'getUTCMilliseconds' : 'getMilliseconds';
+}
+export function fullYearSetterName(isUTC) {
+  return isUTC ? 'setUTCFullYear' : 'setFullYear';
+}
+export function monthSetterName(isUTC) {
+  return isUTC ? 'setUTCMonth' : 'setMonth';
+}
+export function dateSetterName(isUTC) {
+  return isUTC ? 'setUTCDate' : 'setDate';
+}
+export function hoursSetterName(isUTC) {
+  return isUTC ? 'setUTCHours' : 'setHours';
+}
+export function minutesSetterName(isUTC) {
+  return isUTC ? 'setUTCMinutes' : 'setMinutes';
+}
+export function secondsSetterName(isUTC) {
+  return isUTC ? 'setUTCSeconds' : 'setSeconds';
+}
+export function millisecondsSetterName(isUTC) {
+  return isUTC ? 'setUTCMilliseconds' : 'setMilliseconds';
+}

frontend/node_modules/echarts/lib/util/types.js

@@ -0,0 +1,60 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { createHashMap } from 'zrender/lib/core/util.js';
+;
+;
+;
+export var VISUAL_DIMENSIONS = createHashMap(['tooltip', 'label', 'itemName', 'itemId', 'itemGroupId', 'itemChildGroupId', 'seriesName']);
+export var SOURCE_FORMAT_ORIGINAL = 'original';
+export var SOURCE_FORMAT_ARRAY_ROWS = 'arrayRows';
+export var SOURCE_FORMAT_OBJECT_ROWS = 'objectRows';
+export var SOURCE_FORMAT_KEYED_COLUMNS = 'keyedColumns';
+export var SOURCE_FORMAT_TYPED_ARRAY = 'typedArray';
+export var SOURCE_FORMAT_UNKNOWN = 'unknown';
+export var SERIES_LAYOUT_BY_COLUMN = 'column';
+export var SERIES_LAYOUT_BY_ROW = 'row';
+;
+;
+;
+;

frontend/node_modules/echarts/lib/util/vendor.js

@@ -0,0 +1,55 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { isArray } from 'zrender/lib/core/util.js';
+/* global Float32Array */
+var supportFloat32Array = typeof Float32Array !== 'undefined';
+var Float32ArrayCtor = !supportFloat32Array ? Array : Float32Array;
+export function createFloat32Array(arg) {
+  if (isArray(arg)) {
+    // Return self directly if don't support TypedArray.
+    return supportFloat32Array ? new Float32Array(arg) : arg;
+  }
+  // Else is number
+  return new Float32ArrayCtor(arg);
+}