ducha-qianduan/node_modules/echarts/lib/coord/axisModelCommonMixin.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.
*/

var zrUtil = require("zrender/lib/core/util");

/*
* 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 axisHelper from './axisHelper';
var _default = {
  /**
   * @param {boolean} origin
   * @return {number|string} min value or 'dataMin' or null/undefined (means auto) or NaN
   */
  getMin: function (origin) {
    var option = this.option;
    var min = !origin && option.rangeStart != null ? option.rangeStart : option.min;

    if (this.axis && min != null && min !== 'dataMin' && typeof min !== 'function' && !zrUtil.eqNaN(min)) {
      min = this.axis.scale.parse(min);
    }

    return min;
  },

  /**
   * @param {boolean} origin
   * @return {number|string} max value or 'dataMax' or null/undefined (means auto) or NaN
   */
  getMax: function (origin) {
    var option = this.option;
    var max = !origin && option.rangeEnd != null ? option.rangeEnd : option.max;

    if (this.axis && max != null && max !== 'dataMax' && typeof max !== 'function' && !zrUtil.eqNaN(max)) {
      max = this.axis.scale.parse(max);
    }

    return max;
  },

  /**
   * @return {boolean}
   */
  getNeedCrossZero: function () {
    var option = this.option;
    return option.rangeStart != null || option.rangeEnd != null ? false : !option.scale;
  },

  /**
   * Should be implemented by each axis model if necessary.
   * @return {module:echarts/model/Component} coordinate system model
   */
  getCoordSysModel: zrUtil.noop,

  /**
   * @param {number} rangeStart Can only be finite number or null/undefined or NaN.
   * @param {number} rangeEnd Can only be finite number or null/undefined or NaN.
   */
  setRange: function (rangeStart, rangeEnd) {
    this.option.rangeStart = rangeStart;
    this.option.rangeEnd = rangeEnd;
  },

  /**
   * Reset range
   */
  resetRange: function () {
    // rangeStart and rangeEnd is readonly.
    this.option.rangeStart = this.option.rangeEnd = null;
  }
};
module.exports = _default;