function updateDataSelected(uid, seriesModel, hasAnimation, api) {
	        var data = seriesModel.getData();
	        var dataIndex = this.dataIndex;
	        var name = data.getName(dataIndex);
	        var selectedOffset = seriesModel.get('selectedOffset');

	        api.dispatchAction({
	            type: 'pieToggleSelect',
	            from: uid,
	            name: name,
	            seriesId: seriesModel.id
	        });

	        data.each(function (idx) {
	            toggleItemSelected(
	                data.getItemGraphicEl(idx),
	                data.getItemLayout(idx),
	                seriesModel.isSelected(data.getName(idx)),
	                selectedOffset,
	                hasAnimation
	            );
	        });
	    }
Piece of pie including Sector, Label, LabelLine
@constructor
@extends {module:zrender/graphic/Group}