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frontend/node_modules/echarts/lib/scale/Interval.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 { __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;