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

/*
* 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;