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/** * Cartesian coordinate system * @module echarts/coord/Cartesian * */ define(function (require) { 'use strict'; var zrUtil = require('zrender/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; } }; return Cartesian; });