Class TreeView

src/chart/tree/TreeView.ts:133–317

}

class TreeView extends ChartView {

    static readonly type = SERIES_TYPE_TREE;
    readonly type = SERIES_TYPE_TREE;

    private _mainGroup = new graphic.Group();

    private _controller: RoamController;

    private _data: SeriesData<TreeSeriesModel>;

    private _min: number[];
    private _max: number[];
    private _firstRender: boolean;

    init(ecModel: GlobalModel, api: ExtensionAPI) {
        this._controller = new RoamController(api.getZr());
        this.group.add(this._mainGroup);
        this._firstRender = true;
    }

    render(
        seriesModel: TreeSeriesModel,
        ecModel: GlobalModel,
        api: ExtensionAPI
    ) {
        const data = seriesModel.getData();

        const layoutInfo = seriesModel.layoutInfo;

        const group = this._mainGroup;

        const layout = seriesModel.get('layout');

        if (layout === 'radial') {
            group.x = layoutInfo.x + layoutInfo.width / 2;
            group.y = layoutInfo.y + layoutInfo.height / 2;
        }
        else {
            group.x = layoutInfo.x;
            group.y = layoutInfo.y;
        }

        this._updateViewCoordSys(seriesModel, api);

        updateRoamControllerSimply(
            seriesModel,
            api,
            this._controller,
            createIsInSelfByPointerCheckerEl(this.group),
            null,
        );

        const oldData = this._data;

        data.diff(oldData)
            .add(function (newIdx) {
                if (symbolNeedsDraw(data, newIdx)) {