逐步完成前后端服务器

frontend/node_modules/echarts/lib/scale/Interval.js

@@ -0,0 +1,267 @@
+
+/*
+* 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 numberUtil from '../util/number.js';
+import * as formatUtil from '../util/format.js';
+import Scale from './Scale.js';
+import * as helper from './helper.js';
+var roundNumber = numberUtil.round;
+var IntervalScale = /** @class */function (_super) {
+  __extends(IntervalScale, _super);
+  function IntervalScale() {
+    var _this = _super !== null && _super.apply(this, arguments) || this;
+    _this.type = 'interval';
+    // Step is calculated in adjustExtent.
+    _this._interval = 0;
+    _this._intervalPrecision = 2;
+    return _this;
+  }
+  IntervalScale.prototype.parse = function (val) {
+    return val;
+  };
+  IntervalScale.prototype.contain = function (val) {
+    return helper.contain(val, this._extent);
+  };
+  IntervalScale.prototype.normalize = function (val) {
+    return helper.normalize(val, this._extent);
+  };
+  IntervalScale.prototype.scale = function (val) {
+    return helper.scale(val, this._extent);
+  };
+  IntervalScale.prototype.setExtent = function (start, end) {
+    var thisExtent = this._extent;
+    // start,end may be a Number like '25',so...
+    if (!isNaN(start)) {
+      thisExtent[0] = parseFloat(start);
+    }
+    if (!isNaN(end)) {
+      thisExtent[1] = parseFloat(end);
+    }
+  };
+  IntervalScale.prototype.unionExtent = function (other) {
+    var extent = this._extent;
+    other[0] < extent[0] && (extent[0] = other[0]);
+    other[1] > extent[1] && (extent[1] = other[1]);
+    // unionExtent may called by it's sub classes
+    this.setExtent(extent[0], extent[1]);
+  };
+  IntervalScale.prototype.getInterval = function () {
+    return this._interval;
+  };
+  IntervalScale.prototype.setInterval = function (interval) {
+    this._interval = interval;
+    // Dropped auto calculated niceExtent and use user-set extent.
+    // We assume user wants to set both interval, min, max to get a better result.
+    this._niceExtent = this._extent.slice();
+    this._intervalPrecision = helper.getIntervalPrecision(interval);
+  };
+  /**
+   * @param expandToNicedExtent Whether expand the ticks to niced extent.
+   */
+  IntervalScale.prototype.getTicks = function (expandToNicedExtent) {
+    var interval = this._interval;
+    var extent = this._extent;
+    var niceTickExtent = this._niceExtent;
+    var intervalPrecision = this._intervalPrecision;
+    var ticks = [];
+    // If interval is 0, return [];
+    if (!interval) {
+      return ticks;
+    }
+    // Consider this case: using dataZoom toolbox, zoom and zoom.
+    var safeLimit = 10000;
+    if (extent[0] < niceTickExtent[0]) {
+      if (expandToNicedExtent) {
+        ticks.push({
+          value: roundNumber(niceTickExtent[0] - interval, intervalPrecision)
+        });
+      } else {
+        ticks.push({
+          value: extent[0]
+        });
+      }
+    }
+    var tick = niceTickExtent[0];
+    while (tick <= niceTickExtent[1]) {
+      ticks.push({
+        value: tick
+      });
+      // Avoid rounding error
+      tick = roundNumber(tick + interval, intervalPrecision);
+      if (tick === ticks[ticks.length - 1].value) {
+        // Consider out of safe float point, e.g.,
+        // -3711126.9907707 + 2e-10 === -3711126.9907707
+        break;
+      }
+      if (ticks.length > safeLimit) {
+        return [];
+      }
+    }
+    // Consider this case: the last item of ticks is smaller
+    // than niceTickExtent[1] and niceTickExtent[1] === extent[1].
+    var lastNiceTick = ticks.length ? ticks[ticks.length - 1].value : niceTickExtent[1];
+    if (extent[1] > lastNiceTick) {
+      if (expandToNicedExtent) {
+        ticks.push({
+          value: roundNumber(lastNiceTick + interval, intervalPrecision)
+        });
+      } else {
+        ticks.push({
+          value: extent[1]
+        });
+      }
+    }
+    return ticks;
+  };
+  IntervalScale.prototype.getMinorTicks = function (splitNumber) {
+    var ticks = this.getTicks(true);
+    var minorTicks = [];
+    var extent = this.getExtent();
+    for (var i = 1; i < ticks.length; i++) {
+      var nextTick = ticks[i];
+      var prevTick = ticks[i - 1];
+      var count = 0;
+      var minorTicksGroup = [];
+      var interval = nextTick.value - prevTick.value;
+      var minorInterval = interval / splitNumber;
+      while (count < splitNumber - 1) {
+        var minorTick = roundNumber(prevTick.value + (count + 1) * minorInterval);
+        // For the first and last interval. The count may be less than splitNumber.
+        if (minorTick > extent[0] && minorTick < extent[1]) {
+          minorTicksGroup.push(minorTick);
+        }
+        count++;
+      }
+      minorTicks.push(minorTicksGroup);
+    }
+    return minorTicks;
+  };
+  /**
+   * @param opt.precision If 'auto', use nice presision.
+   * @param opt.pad returns 1.50 but not 1.5 if precision is 2.
+   */
+  IntervalScale.prototype.getLabel = function (data, opt) {
+    if (data == null) {
+      return '';
+    }
+    var precision = opt && opt.precision;
+    if (precision == null) {
+      precision = numberUtil.getPrecision(data.value) || 0;
+    } else if (precision === 'auto') {
+      // Should be more precise then tick.
+      precision = this._intervalPrecision;
+    }
+    // (1) If `precision` is set, 12.005 should be display as '12.00500'.
+    // (2) Use roundNumber (toFixed) to avoid scientific notation like '3.5e-7'.
+    var dataNum = roundNumber(data.value, precision, true);
+    return formatUtil.addCommas(dataNum);
+  };
+  /**
+   * @param splitNumber By default `5`.
+   */
+  IntervalScale.prototype.calcNiceTicks = function (splitNumber, minInterval, maxInterval) {
+    splitNumber = splitNumber || 5;
+    var extent = this._extent;
+    var span = extent[1] - extent[0];
+    if (!isFinite(span)) {
+      return;
+    }
+    // User may set axis min 0 and data are all negative
+    // FIXME If it needs to reverse ?
+    if (span < 0) {
+      span = -span;
+      extent.reverse();
+    }
+    var result = helper.intervalScaleNiceTicks(extent, splitNumber, minInterval, maxInterval);
+    this._intervalPrecision = result.intervalPrecision;
+    this._interval = result.interval;
+    this._niceExtent = result.niceTickExtent;
+  };
+  IntervalScale.prototype.calcNiceExtent = function (opt) {
+    var extent = this._extent;
+    // If extent start and end are same, expand them
+    if (extent[0] === extent[1]) {
+      if (extent[0] !== 0) {
+        // Expand extent
+        // Note that extents can be both negative. See #13154
+        var expandSize = Math.abs(extent[0]);
+        // In the fowllowing case
+        //      Axis has been fixed max 100
+        //      Plus data are all 100 and axis extent are [100, 100].
+        // Extend to the both side will cause expanded max is larger than fixed max.
+        // So only expand to the smaller side.
+        if (!opt.fixMax) {
+          extent[1] += expandSize / 2;
+          extent[0] -= expandSize / 2;
+        } else {
+          extent[0] -= expandSize / 2;
+        }
+      } else {
+        extent[1] = 1;
+      }
+    }
+    var span = extent[1] - extent[0];
+    // If there are no data and extent are [Infinity, -Infinity]
+    if (!isFinite(span)) {
+      extent[0] = 0;
+      extent[1] = 1;
+    }
+    this.calcNiceTicks(opt.splitNumber, opt.minInterval, opt.maxInterval);
+    // let extent = this._extent;
+    var interval = this._interval;
+    if (!opt.fixMin) {
+      extent[0] = roundNumber(Math.floor(extent[0] / interval) * interval);
+    }
+    if (!opt.fixMax) {
+      extent[1] = roundNumber(Math.ceil(extent[1] / interval) * interval);
+    }
+  };
+  IntervalScale.prototype.setNiceExtent = function (min, max) {
+    this._niceExtent = [min, max];
+  };
+  IntervalScale.type = 'interval';
+  return IntervalScale;
+}(Scale);
+Scale.registerClass(IntervalScale);
+export default IntervalScale;

frontend/node_modules/echarts/lib/scale/Log.js

@@ -0,0 +1,178 @@
+
+/*
+* 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';
+import Scale from './Scale.js';
+import * as numberUtil from '../util/number.js';
+import * as scaleHelper from './helper.js';
+// Use some method of IntervalScale
+import IntervalScale from './Interval.js';
+var scaleProto = Scale.prototype;
+// FIXME:TS refactor: not good to call it directly with `this`?
+var intervalScaleProto = IntervalScale.prototype;
+var roundingErrorFix = numberUtil.round;
+var mathFloor = Math.floor;
+var mathCeil = Math.ceil;
+var mathPow = Math.pow;
+var mathLog = Math.log;
+var LogScale = /** @class */function (_super) {
+  __extends(LogScale, _super);
+  function LogScale() {
+    var _this = _super !== null && _super.apply(this, arguments) || this;
+    _this.type = 'log';
+    _this.base = 10;
+    _this._originalScale = new IntervalScale();
+    // FIXME:TS actually used by `IntervalScale`
+    _this._interval = 0;
+    return _this;
+  }
+  /**
+   * @param Whether expand the ticks to niced extent.
+   */
+  LogScale.prototype.getTicks = function (expandToNicedExtent) {
+    var originalScale = this._originalScale;
+    var extent = this._extent;
+    var originalExtent = originalScale.getExtent();
+    var ticks = intervalScaleProto.getTicks.call(this, expandToNicedExtent);
+    return zrUtil.map(ticks, function (tick) {
+      var val = tick.value;
+      var powVal = numberUtil.round(mathPow(this.base, val));
+      // Fix #4158
+      powVal = val === extent[0] && this._fixMin ? fixRoundingError(powVal, originalExtent[0]) : powVal;
+      powVal = val === extent[1] && this._fixMax ? fixRoundingError(powVal, originalExtent[1]) : powVal;
+      return {
+        value: powVal
+      };
+    }, this);
+  };
+  LogScale.prototype.setExtent = function (start, end) {
+    var base = mathLog(this.base);
+    // log(-Infinity) is NaN, so safe guard here
+    start = mathLog(Math.max(0, start)) / base;
+    end = mathLog(Math.max(0, end)) / base;
+    intervalScaleProto.setExtent.call(this, start, end);
+  };
+  /**
+   * @return {number} end
+   */
+  LogScale.prototype.getExtent = function () {
+    var base = this.base;
+    var extent = scaleProto.getExtent.call(this);
+    extent[0] = mathPow(base, extent[0]);
+    extent[1] = mathPow(base, extent[1]);
+    // Fix #4158
+    var originalScale = this._originalScale;
+    var originalExtent = originalScale.getExtent();
+    this._fixMin && (extent[0] = fixRoundingError(extent[0], originalExtent[0]));
+    this._fixMax && (extent[1] = fixRoundingError(extent[1], originalExtent[1]));
+    return extent;
+  };
+  LogScale.prototype.unionExtent = function (extent) {
+    this._originalScale.unionExtent(extent);
+    var base = this.base;
+    extent[0] = mathLog(extent[0]) / mathLog(base);
+    extent[1] = mathLog(extent[1]) / mathLog(base);
+    scaleProto.unionExtent.call(this, extent);
+  };
+  LogScale.prototype.unionExtentFromData = function (data, dim) {
+    // TODO
+    // filter value that <= 0
+    this.unionExtent(data.getApproximateExtent(dim));
+  };
+  /**
+   * Update interval and extent of intervals for nice ticks
+   * @param approxTickNum default 10 Given approx tick number
+   */
+  LogScale.prototype.calcNiceTicks = function (approxTickNum) {
+    approxTickNum = approxTickNum || 10;
+    var extent = this._extent;
+    var span = extent[1] - extent[0];
+    if (span === Infinity || span <= 0) {
+      return;
+    }
+    var interval = numberUtil.quantity(span);
+    var err = approxTickNum / span * interval;
+    // Filter ticks to get closer to the desired count.
+    if (err <= 0.5) {
+      interval *= 10;
+    }
+    // Interval should be integer
+    while (!isNaN(interval) && Math.abs(interval) < 1 && Math.abs(interval) > 0) {
+      interval *= 10;
+    }
+    var niceExtent = [numberUtil.round(mathCeil(extent[0] / interval) * interval), numberUtil.round(mathFloor(extent[1] / interval) * interval)];
+    this._interval = interval;
+    this._niceExtent = niceExtent;
+  };
+  LogScale.prototype.calcNiceExtent = function (opt) {
+    intervalScaleProto.calcNiceExtent.call(this, opt);
+    this._fixMin = opt.fixMin;
+    this._fixMax = opt.fixMax;
+  };
+  LogScale.prototype.parse = function (val) {
+    return val;
+  };
+  LogScale.prototype.contain = function (val) {
+    val = mathLog(val) / mathLog(this.base);
+    return scaleHelper.contain(val, this._extent);
+  };
+  LogScale.prototype.normalize = function (val) {
+    val = mathLog(val) / mathLog(this.base);
+    return scaleHelper.normalize(val, this._extent);
+  };
+  LogScale.prototype.scale = function (val) {
+    val = scaleHelper.scale(val, this._extent);
+    return mathPow(this.base, val);
+  };
+  LogScale.type = 'log';
+  return LogScale;
+}(Scale);
+var proto = LogScale.prototype;
+proto.getMinorTicks = intervalScaleProto.getMinorTicks;
+proto.getLabel = intervalScaleProto.getLabel;
+function fixRoundingError(val, originalVal) {
+  return roundingErrorFix(val, numberUtil.getPrecision(originalVal));
+}
+Scale.registerClass(LogScale);
+export default LogScale;

frontend/node_modules/echarts/lib/scale/Ordinal.js

@@ -0,0 +1,214 @@
+
+/*
+* 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";
+/**
+ * Linear continuous scale
+ * http://en.wikipedia.org/wiki/Level_of_measurement
+ */
+// FIXME only one data
+import Scale from './Scale.js';
+import OrdinalMeta from '../data/OrdinalMeta.js';
+import * as scaleHelper from './helper.js';
+import { isArray, map, isObject, isString } from 'zrender/lib/core/util.js';
+var OrdinalScale = /** @class */function (_super) {
+  __extends(OrdinalScale, _super);
+  function OrdinalScale(setting) {
+    var _this = _super.call(this, setting) || this;
+    _this.type = 'ordinal';
+    var ordinalMeta = _this.getSetting('ordinalMeta');
+    // Caution: Should not use instanceof, consider ec-extensions using
+    // import approach to get OrdinalMeta class.
+    if (!ordinalMeta) {
+      ordinalMeta = new OrdinalMeta({});
+    }
+    if (isArray(ordinalMeta)) {
+      ordinalMeta = new OrdinalMeta({
+        categories: map(ordinalMeta, function (item) {
+          return isObject(item) ? item.value : item;
+        })
+      });
+    }
+    _this._ordinalMeta = ordinalMeta;
+    _this._extent = _this.getSetting('extent') || [0, ordinalMeta.categories.length - 1];
+    return _this;
+  }
+  OrdinalScale.prototype.parse = function (val) {
+    // Caution: Math.round(null) will return `0` rather than `NaN`
+    if (val == null) {
+      return NaN;
+    }
+    return isString(val) ? this._ordinalMeta.getOrdinal(val)
+    // val might be float.
+    : Math.round(val);
+  };
+  OrdinalScale.prototype.contain = function (rank) {
+    rank = this.parse(rank);
+    return scaleHelper.contain(rank, this._extent) && this._ordinalMeta.categories[rank] != null;
+  };
+  /**
+   * Normalize given rank or name to linear [0, 1]
+   * @param val raw ordinal number.
+   * @return normalized value in [0, 1].
+   */
+  OrdinalScale.prototype.normalize = function (val) {
+    val = this._getTickNumber(this.parse(val));
+    return scaleHelper.normalize(val, this._extent);
+  };
+  /**
+   * @param val normalized value in [0, 1].
+   * @return raw ordinal number.
+   */
+  OrdinalScale.prototype.scale = function (val) {
+    val = Math.round(scaleHelper.scale(val, this._extent));
+    return this.getRawOrdinalNumber(val);
+  };
+  OrdinalScale.prototype.getTicks = function () {
+    var ticks = [];
+    var extent = this._extent;
+    var rank = extent[0];
+    while (rank <= extent[1]) {
+      ticks.push({
+        value: rank
+      });
+      rank++;
+    }
+    return ticks;
+  };
+  OrdinalScale.prototype.getMinorTicks = function (splitNumber) {
+    // Not support.
+    return;
+  };
+  /**
+   * @see `Ordinal['_ordinalNumbersByTick']`
+   */
+  OrdinalScale.prototype.setSortInfo = function (info) {
+    if (info == null) {
+      this._ordinalNumbersByTick = this._ticksByOrdinalNumber = null;
+      return;
+    }
+    var infoOrdinalNumbers = info.ordinalNumbers;
+    var ordinalsByTick = this._ordinalNumbersByTick = [];
+    var ticksByOrdinal = this._ticksByOrdinalNumber = [];
+    // Unnecessary support negative tick in `realtimeSort`.
+    var tickNum = 0;
+    var allCategoryLen = this._ordinalMeta.categories.length;
+    for (var len = Math.min(allCategoryLen, infoOrdinalNumbers.length); tickNum < len; ++tickNum) {
+      var ordinalNumber = infoOrdinalNumbers[tickNum];
+      ordinalsByTick[tickNum] = ordinalNumber;
+      ticksByOrdinal[ordinalNumber] = tickNum;
+    }
+    // Handle that `series.data` only covers part of the `axis.category.data`.
+    var unusedOrdinal = 0;
+    for (; tickNum < allCategoryLen; ++tickNum) {
+      while (ticksByOrdinal[unusedOrdinal] != null) {
+        unusedOrdinal++;
+      }
+      ;
+      ordinalsByTick.push(unusedOrdinal);
+      ticksByOrdinal[unusedOrdinal] = tickNum;
+    }
+  };
+  OrdinalScale.prototype._getTickNumber = function (ordinal) {
+    var ticksByOrdinalNumber = this._ticksByOrdinalNumber;
+    // also support ordinal out of range of `ordinalMeta.categories.length`,
+    // where ordinal numbers are used as tick value directly.
+    return ticksByOrdinalNumber && ordinal >= 0 && ordinal < ticksByOrdinalNumber.length ? ticksByOrdinalNumber[ordinal] : ordinal;
+  };
+  /**
+   * @usage
+   * ```js
+   * const ordinalNumber = ordinalScale.getRawOrdinalNumber(tickVal);
+   *
+   * // case0
+   * const rawOrdinalValue = axisModel.getCategories()[ordinalNumber];
+   * // case1
+   * const rawOrdinalValue = this._ordinalMeta.categories[ordinalNumber];
+   * // case2
+   * const coord = axis.dataToCoord(ordinalNumber);
+   * ```
+   *
+   * @param {OrdinalNumber} tickNumber index of display
+   */
+  OrdinalScale.prototype.getRawOrdinalNumber = function (tickNumber) {
+    var ordinalNumbersByTick = this._ordinalNumbersByTick;
+    // tickNumber may be out of range, e.g., when axis max is larger than `ordinalMeta.categories.length`.,
+    // where ordinal numbers are used as tick value directly.
+    return ordinalNumbersByTick && tickNumber >= 0 && tickNumber < ordinalNumbersByTick.length ? ordinalNumbersByTick[tickNumber] : tickNumber;
+  };
+  /**
+   * Get item on tick
+   */
+  OrdinalScale.prototype.getLabel = function (tick) {
+    if (!this.isBlank()) {
+      var ordinalNumber = this.getRawOrdinalNumber(tick.value);
+      var cateogry = this._ordinalMeta.categories[ordinalNumber];
+      // Note that if no data, ordinalMeta.categories is an empty array.
+      // Return empty if it's not exist.
+      return cateogry == null ? '' : cateogry + '';
+    }
+  };
+  OrdinalScale.prototype.count = function () {
+    return this._extent[1] - this._extent[0] + 1;
+  };
+  OrdinalScale.prototype.unionExtentFromData = function (data, dim) {
+    this.unionExtent(data.getApproximateExtent(dim));
+  };
+  /**
+   * @override
+   * If value is in extent range
+   */
+  OrdinalScale.prototype.isInExtentRange = function (value) {
+    value = this._getTickNumber(value);
+    return this._extent[0] <= value && this._extent[1] >= value;
+  };
+  OrdinalScale.prototype.getOrdinalMeta = function () {
+    return this._ordinalMeta;
+  };
+  OrdinalScale.prototype.calcNiceTicks = function () {};
+  OrdinalScale.prototype.calcNiceExtent = function () {};
+  OrdinalScale.type = 'ordinal';
+  return OrdinalScale;
+}(Scale);
+Scale.registerClass(OrdinalScale);
+export default OrdinalScale;

frontend/node_modules/echarts/lib/scale/Scale.js

@@ -0,0 +1,112 @@
+
+/*
+* 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 clazzUtil from '../util/clazz.js';
+var Scale = /** @class */function () {
+  function Scale(setting) {
+    this._setting = setting || {};
+    this._extent = [Infinity, -Infinity];
+  }
+  Scale.prototype.getSetting = function (name) {
+    return this._setting[name];
+  };
+  /**
+   * Set extent from data
+   */
+  Scale.prototype.unionExtent = function (other) {
+    var extent = this._extent;
+    other[0] < extent[0] && (extent[0] = other[0]);
+    other[1] > extent[1] && (extent[1] = other[1]);
+    // not setExtent because in log axis it may transformed to power
+    // this.setExtent(extent[0], extent[1]);
+  };
+  /**
+   * Set extent from data
+   */
+  Scale.prototype.unionExtentFromData = function (data, dim) {
+    this.unionExtent(data.getApproximateExtent(dim));
+  };
+  /**
+   * Get extent
+   *
+   * Extent is always in increase order.
+   */
+  Scale.prototype.getExtent = function () {
+    return this._extent.slice();
+  };
+  /**
+   * Set extent
+   */
+  Scale.prototype.setExtent = function (start, end) {
+    var thisExtent = this._extent;
+    if (!isNaN(start)) {
+      thisExtent[0] = start;
+    }
+    if (!isNaN(end)) {
+      thisExtent[1] = end;
+    }
+  };
+  /**
+   * If value is in extent range
+   */
+  Scale.prototype.isInExtentRange = function (value) {
+    return this._extent[0] <= value && this._extent[1] >= value;
+  };
+  /**
+   * When axis extent depends on data and no data exists,
+   * axis ticks should not be drawn, which is named 'blank'.
+   */
+  Scale.prototype.isBlank = function () {
+    return this._isBlank;
+  };
+  /**
+   * When axis extent depends on data and no data exists,
+   * axis ticks should not be drawn, which is named 'blank'.
+   */
+  Scale.prototype.setBlank = function (isBlank) {
+    this._isBlank = isBlank;
+  };
+  return Scale;
+}();
+clazzUtil.enableClassManagement(Scale);
+export default Scale;

frontend/node_modules/echarts/lib/scale/Time.js

@@ -0,0 +1,509 @@
+
+/*
+* 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";
+/*
+* A third-party license is embedded for some of the code in this file:
+* The "scaleLevels" was originally copied from "d3.js" with some
+* modifications made for this project.
+* (See more details in the comment on the definition of "scaleLevels" 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>).
+*/
+// [About UTC and local time zone]:
+// In most cases, `number.parseDate` will treat input data string as local time
+// (except time zone is specified in time string). And `format.formateTime` returns
+// local time by default. option.useUTC is false by default. This design has
+// considered these common cases:
+// (1) Time that is persistent in server is in UTC, but it is needed to be displayed
+// in local time by default.
+// (2) By default, the input data string (e.g., '2011-01-02') should be displayed
+// as its original time, without any time difference.
+import * as numberUtil from '../util/number.js';
+import { ONE_SECOND, ONE_MINUTE, ONE_HOUR, ONE_DAY, ONE_YEAR, format, leveledFormat, getUnitValue, timeUnits, fullLeveledFormatter, getPrimaryTimeUnit, isPrimaryTimeUnit, getDefaultFormatPrecisionOfInterval, fullYearGetterName, monthSetterName, fullYearSetterName, dateSetterName, hoursGetterName, hoursSetterName, minutesSetterName, secondsSetterName, millisecondsSetterName, monthGetterName, dateGetterName, minutesGetterName, secondsGetterName, millisecondsGetterName } from '../util/time.js';
+import * as scaleHelper from './helper.js';
+import IntervalScale from './Interval.js';
+import Scale from './Scale.js';
+import { warn } from '../util/log.js';
+import { filter, isNumber, map } from 'zrender/lib/core/util.js';
+// FIXME 公用？
+var bisect = function (a, x, lo, hi) {
+  while (lo < hi) {
+    var mid = lo + hi >>> 1;
+    if (a[mid][1] < x) {
+      lo = mid + 1;
+    } else {
+      hi = mid;
+    }
+  }
+  return lo;
+};
+var TimeScale = /** @class */function (_super) {
+  __extends(TimeScale, _super);
+  function TimeScale(settings) {
+    var _this = _super.call(this, settings) || this;
+    _this.type = 'time';
+    return _this;
+  }
+  /**
+   * Get label is mainly for other components like dataZoom, tooltip.
+   */
+  TimeScale.prototype.getLabel = function (tick) {
+    var useUTC = this.getSetting('useUTC');
+    return format(tick.value, fullLeveledFormatter[getDefaultFormatPrecisionOfInterval(getPrimaryTimeUnit(this._minLevelUnit))] || fullLeveledFormatter.second, useUTC, this.getSetting('locale'));
+  };
+  TimeScale.prototype.getFormattedLabel = function (tick, idx, labelFormatter) {
+    var isUTC = this.getSetting('useUTC');
+    var lang = this.getSetting('locale');
+    return leveledFormat(tick, idx, labelFormatter, lang, isUTC);
+  };
+  /**
+   * @override
+   */
+  TimeScale.prototype.getTicks = function () {
+    var interval = this._interval;
+    var extent = this._extent;
+    var ticks = [];
+    // If interval is 0, return [];
+    if (!interval) {
+      return ticks;
+    }
+    ticks.push({
+      value: extent[0],
+      level: 0
+    });
+    var useUTC = this.getSetting('useUTC');
+    var innerTicks = getIntervalTicks(this._minLevelUnit, this._approxInterval, useUTC, extent);
+    ticks = ticks.concat(innerTicks);
+    ticks.push({
+      value: extent[1],
+      level: 0
+    });
+    return ticks;
+  };
+  TimeScale.prototype.calcNiceExtent = function (opt) {
+    var extent = this._extent;
+    // If extent start and end are same, expand them
+    if (extent[0] === extent[1]) {
+      // Expand extent
+      extent[0] -= ONE_DAY;
+      extent[1] += ONE_DAY;
+    }
+    // If there are no data and extent are [Infinity, -Infinity]
+    if (extent[1] === -Infinity && extent[0] === Infinity) {
+      var d = new Date();
+      extent[1] = +new Date(d.getFullYear(), d.getMonth(), d.getDate());
+      extent[0] = extent[1] - ONE_DAY;
+    }
+    this.calcNiceTicks(opt.splitNumber, opt.minInterval, opt.maxInterval);
+  };
+  TimeScale.prototype.calcNiceTicks = function (approxTickNum, minInterval, maxInterval) {
+    approxTickNum = approxTickNum || 10;
+    var extent = this._extent;
+    var span = extent[1] - extent[0];
+    this._approxInterval = span / approxTickNum;
+    if (minInterval != null && this._approxInterval < minInterval) {
+      this._approxInterval = minInterval;
+    }
+    if (maxInterval != null && this._approxInterval > maxInterval) {
+      this._approxInterval = maxInterval;
+    }
+    var scaleIntervalsLen = scaleIntervals.length;
+    var idx = Math.min(bisect(scaleIntervals, this._approxInterval, 0, scaleIntervalsLen), scaleIntervalsLen - 1);
+    // Interval that can be used to calculate ticks
+    this._interval = scaleIntervals[idx][1];
+    // Min level used when picking ticks from top down.
+    // We check one more level to avoid the ticks are to sparse in some case.
+    this._minLevelUnit = scaleIntervals[Math.max(idx - 1, 0)][0];
+  };
+  TimeScale.prototype.parse = function (val) {
+    // val might be float.
+    return isNumber(val) ? val : +numberUtil.parseDate(val);
+  };
+  TimeScale.prototype.contain = function (val) {
+    return scaleHelper.contain(this.parse(val), this._extent);
+  };
+  TimeScale.prototype.normalize = function (val) {
+    return scaleHelper.normalize(this.parse(val), this._extent);
+  };
+  TimeScale.prototype.scale = function (val) {
+    return scaleHelper.scale(val, this._extent);
+  };
+  TimeScale.type = 'time';
+  return TimeScale;
+}(IntervalScale);
+/**
+ * This implementation was originally copied from "d3.js"
+ * <https://github.com/d3/d3/blob/b516d77fb8566b576088e73410437494717ada26/src/time/scale.js>
+ * with some modifications made for this program.
+ * See the license statement at the head of this file.
+ */
+var scaleIntervals = [
+// Format                           interval
+['second', ONE_SECOND], ['minute', ONE_MINUTE], ['hour', ONE_HOUR], ['quarter-day', ONE_HOUR * 6], ['half-day', ONE_HOUR * 12], ['day', ONE_DAY * 1.2], ['half-week', ONE_DAY * 3.5], ['week', ONE_DAY * 7], ['month', ONE_DAY * 31], ['quarter', ONE_DAY * 95], ['half-year', ONE_YEAR / 2], ['year', ONE_YEAR] // 1Y
+];
+function isUnitValueSame(unit, valueA, valueB, isUTC) {
+  var dateA = numberUtil.parseDate(valueA);
+  var dateB = numberUtil.parseDate(valueB);
+  var isSame = function (unit) {
+    return getUnitValue(dateA, unit, isUTC) === getUnitValue(dateB, unit, isUTC);
+  };
+  var isSameYear = function () {
+    return isSame('year');
+  };
+  // const isSameHalfYear = () => isSameYear() && isSame('half-year');
+  // const isSameQuater = () => isSameYear() && isSame('quarter');
+  var isSameMonth = function () {
+    return isSameYear() && isSame('month');
+  };
+  var isSameDay = function () {
+    return isSameMonth() && isSame('day');
+  };
+  // const isSameHalfDay = () => isSameDay() && isSame('half-day');
+  var isSameHour = function () {
+    return isSameDay() && isSame('hour');
+  };
+  var isSameMinute = function () {
+    return isSameHour() && isSame('minute');
+  };
+  var isSameSecond = function () {
+    return isSameMinute() && isSame('second');
+  };
+  var isSameMilliSecond = function () {
+    return isSameSecond() && isSame('millisecond');
+  };
+  switch (unit) {
+    case 'year':
+      return isSameYear();
+    case 'month':
+      return isSameMonth();
+    case 'day':
+      return isSameDay();
+    case 'hour':
+      return isSameHour();
+    case 'minute':
+      return isSameMinute();
+    case 'second':
+      return isSameSecond();
+    case 'millisecond':
+      return isSameMilliSecond();
+  }
+}
+// const primaryUnitGetters = {
+//     year: fullYearGetterName(),
+//     month: monthGetterName(),
+//     day: dateGetterName(),
+//     hour: hoursGetterName(),
+//     minute: minutesGetterName(),
+//     second: secondsGetterName(),
+//     millisecond: millisecondsGetterName()
+// };
+// const primaryUnitUTCGetters = {
+//     year: fullYearGetterName(true),
+//     month: monthGetterName(true),
+//     day: dateGetterName(true),
+//     hour: hoursGetterName(true),
+//     minute: minutesGetterName(true),
+//     second: secondsGetterName(true),
+//     millisecond: millisecondsGetterName(true)
+// };
+// function moveTick(date: Date, unitName: TimeUnit, step: number, isUTC: boolean) {
+//     step = step || 1;
+//     switch (getPrimaryTimeUnit(unitName)) {
+//         case 'year':
+//             date[fullYearSetterName(isUTC)](date[fullYearGetterName(isUTC)]() + step);
+//             break;
+//         case 'month':
+//             date[monthSetterName(isUTC)](date[monthGetterName(isUTC)]() + step);
+//             break;
+//         case 'day':
+//             date[dateSetterName(isUTC)](date[dateGetterName(isUTC)]() + step);
+//             break;
+//         case 'hour':
+//             date[hoursSetterName(isUTC)](date[hoursGetterName(isUTC)]() + step);
+//             break;
+//         case 'minute':
+//             date[minutesSetterName(isUTC)](date[minutesGetterName(isUTC)]() + step);
+//             break;
+//         case 'second':
+//             date[secondsSetterName(isUTC)](date[secondsGetterName(isUTC)]() + step);
+//             break;
+//         case 'millisecond':
+//             date[millisecondsSetterName(isUTC)](date[millisecondsGetterName(isUTC)]() + step);
+//             break;
+//     }
+//     return date.getTime();
+// }
+// const DATE_INTERVALS = [[8, 7.5], [4, 3.5], [2, 1.5]];
+// const MONTH_INTERVALS = [[6, 5.5], [3, 2.5], [2, 1.5]];
+// const MINUTES_SECONDS_INTERVALS = [[30, 30], [20, 20], [15, 15], [10, 10], [5, 5], [2, 2]];
+function getDateInterval(approxInterval, daysInMonth) {
+  approxInterval /= ONE_DAY;
+  return approxInterval > 16 ? 16
+  // Math.floor(daysInMonth / 2) + 1  // In this case we only want one tick between two months.
+  : approxInterval > 7.5 ? 7 // TODO week 7 or day 8?
+  : approxInterval > 3.5 ? 4 : approxInterval > 1.5 ? 2 : 1;
+}
+function getMonthInterval(approxInterval) {
+  var APPROX_ONE_MONTH = 30 * ONE_DAY;
+  approxInterval /= APPROX_ONE_MONTH;
+  return approxInterval > 6 ? 6 : approxInterval > 3 ? 3 : approxInterval > 2 ? 2 : 1;
+}
+function getHourInterval(approxInterval) {
+  approxInterval /= ONE_HOUR;
+  return approxInterval > 12 ? 12 : approxInterval > 6 ? 6 : approxInterval > 3.5 ? 4 : approxInterval > 2 ? 2 : 1;
+}
+function getMinutesAndSecondsInterval(approxInterval, isMinutes) {
+  approxInterval /= isMinutes ? ONE_MINUTE : ONE_SECOND;
+  return approxInterval > 30 ? 30 : approxInterval > 20 ? 20 : approxInterval > 15 ? 15 : approxInterval > 10 ? 10 : approxInterval > 5 ? 5 : approxInterval > 2 ? 2 : 1;
+}
+function getMillisecondsInterval(approxInterval) {
+  return numberUtil.nice(approxInterval, true);
+}
+function getFirstTimestampOfUnit(date, unitName, isUTC) {
+  var outDate = new Date(date);
+  switch (getPrimaryTimeUnit(unitName)) {
+    case 'year':
+    case 'month':
+      outDate[monthSetterName(isUTC)](0);
+    case 'day':
+      outDate[dateSetterName(isUTC)](1);
+    case 'hour':
+      outDate[hoursSetterName(isUTC)](0);
+    case 'minute':
+      outDate[minutesSetterName(isUTC)](0);
+    case 'second':
+      outDate[secondsSetterName(isUTC)](0);
+      outDate[millisecondsSetterName(isUTC)](0);
+  }
+  return outDate.getTime();
+}
+function getIntervalTicks(bottomUnitName, approxInterval, isUTC, extent) {
+  var safeLimit = 10000;
+  var unitNames = timeUnits;
+  var iter = 0;
+  function addTicksInSpan(interval, minTimestamp, maxTimestamp, getMethodName, setMethodName, isDate, out) {
+    var date = new Date(minTimestamp);
+    var dateTime = minTimestamp;
+    var d = date[getMethodName]();
+    // if (isDate) {
+    //     d -= 1; // Starts with 0;   PENDING
+    // }
+    while (dateTime < maxTimestamp && dateTime <= extent[1]) {
+      out.push({
+        value: dateTime
+      });
+      d += interval;
+      date[setMethodName](d);
+      dateTime = date.getTime();
+    }
+    // This extra tick is for calcuating ticks of next level. Will not been added to the final result
+    out.push({
+      value: dateTime,
+      notAdd: true
+    });
+  }
+  function addLevelTicks(unitName, lastLevelTicks, levelTicks) {
+    var newAddedTicks = [];
+    var isFirstLevel = !lastLevelTicks.length;
+    if (isUnitValueSame(getPrimaryTimeUnit(unitName), extent[0], extent[1], isUTC)) {
+      return;
+    }
+    if (isFirstLevel) {
+      lastLevelTicks = [{
+        // TODO Optimize. Not include so may ticks.
+        value: getFirstTimestampOfUnit(new Date(extent[0]), unitName, isUTC)
+      }, {
+        value: extent[1]
+      }];
+    }
+    for (var i = 0; i < lastLevelTicks.length - 1; i++) {
+      var startTick = lastLevelTicks[i].value;
+      var endTick = lastLevelTicks[i + 1].value;
+      if (startTick === endTick) {
+        continue;
+      }
+      var interval = void 0;
+      var getterName = void 0;
+      var setterName = void 0;
+      var isDate = false;
+      switch (unitName) {
+        case 'year':
+          interval = Math.max(1, Math.round(approxInterval / ONE_DAY / 365));
+          getterName = fullYearGetterName(isUTC);
+          setterName = fullYearSetterName(isUTC);
+          break;
+        case 'half-year':
+        case 'quarter':
+        case 'month':
+          interval = getMonthInterval(approxInterval);
+          getterName = monthGetterName(isUTC);
+          setterName = monthSetterName(isUTC);
+          break;
+        case 'week': // PENDING If week is added. Ignore day.
+        case 'half-week':
+        case 'day':
+          interval = getDateInterval(approxInterval, 31); // Use 32 days and let interval been 16
+          getterName = dateGetterName(isUTC);
+          setterName = dateSetterName(isUTC);
+          isDate = true;
+          break;
+        case 'half-day':
+        case 'quarter-day':
+        case 'hour':
+          interval = getHourInterval(approxInterval);
+          getterName = hoursGetterName(isUTC);
+          setterName = hoursSetterName(isUTC);
+          break;
+        case 'minute':
+          interval = getMinutesAndSecondsInterval(approxInterval, true);
+          getterName = minutesGetterName(isUTC);
+          setterName = minutesSetterName(isUTC);
+          break;
+        case 'second':
+          interval = getMinutesAndSecondsInterval(approxInterval, false);
+          getterName = secondsGetterName(isUTC);
+          setterName = secondsSetterName(isUTC);
+          break;
+        case 'millisecond':
+          interval = getMillisecondsInterval(approxInterval);
+          getterName = millisecondsGetterName(isUTC);
+          setterName = millisecondsSetterName(isUTC);
+          break;
+      }
+      addTicksInSpan(interval, startTick, endTick, getterName, setterName, isDate, newAddedTicks);
+      if (unitName === 'year' && levelTicks.length > 1 && i === 0) {
+        // Add nearest years to the left extent.
+        levelTicks.unshift({
+          value: levelTicks[0].value - interval
+        });
+      }
+    }
+    for (var i = 0; i < newAddedTicks.length; i++) {
+      levelTicks.push(newAddedTicks[i]);
+    }
+    // newAddedTicks.length && console.log(unitName, newAddedTicks);
+    return newAddedTicks;
+  }
+  var levelsTicks = [];
+  var currentLevelTicks = [];
+  var tickCount = 0;
+  var lastLevelTickCount = 0;
+  for (var i = 0; i < unitNames.length && iter++ < safeLimit; ++i) {
+    var primaryTimeUnit = getPrimaryTimeUnit(unitNames[i]);
+    if (!isPrimaryTimeUnit(unitNames[i])) {
+      // TODO
+      continue;
+    }
+    addLevelTicks(unitNames[i], levelsTicks[levelsTicks.length - 1] || [], currentLevelTicks);
+    var nextPrimaryTimeUnit = unitNames[i + 1] ? getPrimaryTimeUnit(unitNames[i + 1]) : null;
+    if (primaryTimeUnit !== nextPrimaryTimeUnit) {
+      if (currentLevelTicks.length) {
+        lastLevelTickCount = tickCount;
+        // Remove the duplicate so the tick count can be precisely.
+        currentLevelTicks.sort(function (a, b) {
+          return a.value - b.value;
+        });
+        var levelTicksRemoveDuplicated = [];
+        for (var i_1 = 0; i_1 < currentLevelTicks.length; ++i_1) {
+          var tickValue = currentLevelTicks[i_1].value;
+          if (i_1 === 0 || currentLevelTicks[i_1 - 1].value !== tickValue) {
+            levelTicksRemoveDuplicated.push(currentLevelTicks[i_1]);
+            if (tickValue >= extent[0] && tickValue <= extent[1]) {
+              tickCount++;
+            }
+          }
+        }
+        var targetTickNum = (extent[1] - extent[0]) / approxInterval;
+        // Added too much in this level and not too less in last level
+        if (tickCount > targetTickNum * 1.5 && lastLevelTickCount > targetTickNum / 1.5) {
+          break;
+        }
+        // Only treat primary time unit as one level.
+        levelsTicks.push(levelTicksRemoveDuplicated);
+        if (tickCount > targetTickNum || bottomUnitName === unitNames[i]) {
+          break;
+        }
+      }
+      // Reset if next unitName is primary
+      currentLevelTicks = [];
+    }
+  }
+  if (process.env.NODE_ENV !== 'production') {
+    if (iter >= safeLimit) {
+      warn('Exceed safe limit.');
+    }
+  }
+  var levelsTicksInExtent = filter(map(levelsTicks, function (levelTicks) {
+    return filter(levelTicks, function (tick) {
+      return tick.value >= extent[0] && tick.value <= extent[1] && !tick.notAdd;
+    });
+  }), function (levelTicks) {
+    return levelTicks.length > 0;
+  });
+  var ticks = [];
+  var maxLevel = levelsTicksInExtent.length - 1;
+  for (var i = 0; i < levelsTicksInExtent.length; ++i) {
+    var levelTicks = levelsTicksInExtent[i];
+    for (var k = 0; k < levelTicks.length; ++k) {
+      ticks.push({
+        value: levelTicks[k].value,
+        level: maxLevel - i
+      });
+    }
+  }
+  ticks.sort(function (a, b) {
+    return a.value - b.value;
+  });
+  // Remove duplicates
+  var result = [];
+  for (var i = 0; i < ticks.length; ++i) {
+    if (i === 0 || ticks[i].value !== ticks[i - 1].value) {
+      result.push(ticks[i]);
+    }
+  }
+  return result;
+}
+Scale.registerClass(TimeScale);
+export default TimeScale;

frontend/node_modules/echarts/lib/scale/helper.js

@@ -0,0 +1,122 @@
+
+/*
+* 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 { getPrecision, round, nice, quantityExponent } from '../util/number.js';
+export function isValueNice(val) {
+  var exp10 = Math.pow(10, quantityExponent(Math.abs(val)));
+  var f = Math.abs(val / exp10);
+  return f === 0 || f === 1 || f === 2 || f === 3 || f === 5;
+}
+export function isIntervalOrLogScale(scale) {
+  return scale.type === 'interval' || scale.type === 'log';
+}
+/**
+ * @param extent Both extent[0] and extent[1] should be valid number.
+ *               Should be extent[0] < extent[1].
+ * @param splitNumber splitNumber should be >= 1.
+ */
+export function intervalScaleNiceTicks(extent, splitNumber, minInterval, maxInterval) {
+  var result = {};
+  var span = extent[1] - extent[0];
+  var interval = result.interval = nice(span / splitNumber, true);
+  if (minInterval != null && interval < minInterval) {
+    interval = result.interval = minInterval;
+  }
+  if (maxInterval != null && interval > maxInterval) {
+    interval = result.interval = maxInterval;
+  }
+  // Tow more digital for tick.
+  var precision = result.intervalPrecision = getIntervalPrecision(interval);
+  // Niced extent inside original extent
+  var niceTickExtent = result.niceTickExtent = [round(Math.ceil(extent[0] / interval) * interval, precision), round(Math.floor(extent[1] / interval) * interval, precision)];
+  fixExtent(niceTickExtent, extent);
+  return result;
+}
+export function increaseInterval(interval) {
+  var exp10 = Math.pow(10, quantityExponent(interval));
+  // Increase interval
+  var f = interval / exp10;
+  if (!f) {
+    f = 1;
+  } else if (f === 2) {
+    f = 3;
+  } else if (f === 3) {
+    f = 5;
+  } else {
+    // f is 1 or 5
+    f *= 2;
+  }
+  return round(f * exp10);
+}
+/**
+ * @return interval precision
+ */
+export function getIntervalPrecision(interval) {
+  // Tow more digital for tick.
+  return getPrecision(interval) + 2;
+}
+function clamp(niceTickExtent, idx, extent) {
+  niceTickExtent[idx] = Math.max(Math.min(niceTickExtent[idx], extent[1]), extent[0]);
+}
+// In some cases (e.g., splitNumber is 1), niceTickExtent may be out of extent.
+export function fixExtent(niceTickExtent, extent) {
+  !isFinite(niceTickExtent[0]) && (niceTickExtent[0] = extent[0]);
+  !isFinite(niceTickExtent[1]) && (niceTickExtent[1] = extent[1]);
+  clamp(niceTickExtent, 0, extent);
+  clamp(niceTickExtent, 1, extent);
+  if (niceTickExtent[0] > niceTickExtent[1]) {
+    niceTickExtent[0] = niceTickExtent[1];
+  }
+}
+export function contain(val, extent) {
+  return val >= extent[0] && val <= extent[1];
+}
+export function normalize(val, extent) {
+  if (extent[1] === extent[0]) {
+    return 0.5;
+  }
+  return (val - extent[0]) / (extent[1] - extent[0]);
+}
+export function scale(val, extent) {
+  return val * (extent[1] - extent[0]) + extent[0];
+}