src/component/graphic.js
function () {
        var elMap = this._elMap;
        elMap.each(function (el) {
            removeEl(el, elMap);
        });
        this._elMap = zrUtil.createHashMap();
    }
function () {
        var elMap = this._elMap;
        elMap.each(function (el) {
            removeEl(el, elMap);
        });
        this._elMap = zrUtil.createHashMap();
    }
function ( ) { var elMap = this . _elMap ; elMap . each ( function ( el ) { removeEl ( el , elMap ) ; } ) ; this . _elMap = zrUtil . createHashMap ( ) ; }
Clear all elements.

@private
Clear all elements .