src/util/ZRTextureAtlasSurface.js
function () {
        var dpr = this._dpr;
        return [this._nodeWidth / this._canvas.width * dpr, this._nodeHeight / this._canvas.height * dpr];
    }
function () {
        var dpr = this._dpr;
        return [this._nodeWidth / this._canvas.width * dpr, this._nodeHeight / this._canvas.height * dpr];
    }
function ( ) { var dpr = this . _dpr ; return [ this . _nodeWidth / this . _canvas . width * dpr , this . _nodeHeight / this . _canvas . height * dpr ] ; }
Get coord scale after texture atlas is expanded.
@return {Array.<number>}
Get coord scale after texture atlas is expanded .