Cartesian.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.
*/
/**
* Cartesian coordinate system
* @module echarts/coord/Cartesian
*
*/
import * as zrUtil from 'zrender/src/core/util';
function dimAxisMapper(dim) {
return this._axes[dim];
}
/**
* @alias module:echarts/coord/Cartesian
* @constructor
*/
var Cartesian = function (name) {
this._axes = {};
this._dimList = [];
/**
* @type {string}
*/
this.name = name || '';
};
Cartesian.prototype = {
constructor: Cartesian,
type: 'cartesian',
/**
* Get axis
* @param {number|string} dim
* @return {module:echarts/coord/Cartesian~Axis}
*/
getAxis: function (dim) {
return this._axes[dim];
},
/**
* Get axes list
* @return {Array.<module:echarts/coord/Cartesian~Axis>}
*/
getAxes: function () {
return zrUtil.map(this._dimList, dimAxisMapper, this);
},
/**
* Get axes list by given scale type
*/
getAxesByScale: function (scaleType) {
scaleType = scaleType.toLowerCase();
return zrUtil.filter(
this.getAxes(),
function (axis) {
return axis.scale.type === scaleType;
}
);
},
/**
* Add axis
* @param {module:echarts/coord/Cartesian.Axis}
*/
addAxis: function (axis) {
var dim = axis.dim;
this._axes[dim] = axis;
this._dimList.push(dim);
},
/**
* Convert data to coord in nd space
* @param {Array.<number>|Object.<string, number>} val
* @return {Array.<number>|Object.<string, number>}
*/
dataToCoord: function (val) {
return this._dataCoordConvert(val, 'dataToCoord');
},
/**
* Convert coord in nd space to data
* @param {Array.<number>|Object.<string, number>} val
* @return {Array.<number>|Object.<string, number>}
*/
coordToData: function (val) {
return this._dataCoordConvert(val, 'coordToData');
},
_dataCoordConvert: function (input, method) {
var dimList = this._dimList;
var output = input instanceof Array ? [] : {};
for (var i = 0; i < dimList.length; i++) {
var dim = dimList[i];
var axis = this._axes[dim];
output[dim] = axis[method](input[dim]);
}
return output;
}
};
export default Cartesian;