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- var zrUtil = require("zrender/lib/core/util");
- /**
- * Cartesian coordinate system
- * @module echarts/coord/Cartesian
- *
- */
- 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;
- }
- };
- var _default = Cartesian;
- module.exports = _default;
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