Class ScatterView

src/chart/scatter/ScatterView.ts:35–123

import { ISymbolDraw, SymbolDrawUpdateOpt } from '../helper/baseDraw';

class ScatterView extends ChartView {
    static readonly type = 'scatter';
    type = ScatterView.type;

    _finished: boolean;

    _isLargeDraw: boolean;

    _symbolDraw: ISymbolDraw;

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

        const symbolDraw = this._updateSymbolDraw(data, seriesModel);

        symbolDraw.updateData(data, createSymbolDrawOpt(seriesModel));

        this._finished = true;
    }

    incrementalPrepareRender(seriesModel: ScatterSeriesModel, ecModel: GlobalModel, api: ExtensionAPI) {
        const data = seriesModel.getData();
        const symbolDraw = this._updateSymbolDraw(data, seriesModel);

        symbolDraw.incrementalPrepareUpdate(data);

        this._finished = false;
    }

    incrementalRender(taskParams: TaskProgressParams, seriesModel: ScatterSeriesModel, ecModel: GlobalModel) {
        this._symbolDraw.incrementalUpdate(
            taskParams, seriesModel.getData(), getIncrementalId(seriesModel), createSymbolDrawOpt(seriesModel)
        );

        this._finished = taskParams.end === seriesModel.getData().count();
    }

    /**
     * See also VIEW_COORD_SYS_ANIMATION
     */
    updateTransform(seriesModel: ScatterSeriesModel, ecModel: GlobalModel, api: ExtensionAPI) {
        const data = seriesModel.getData();
        // Must mark group dirty and make sure the incremental layer will be cleared
        // PENDING
        this.group.dirty();

        if (!this._finished) { // FIXME: _finished checking is unnecessary?
            return {update: true} as const;
        }
        else {
            const res = pointsLayout('').reset(seriesModel, ecModel, api) as StageHandlerProgressExecutor;
            if (res.progress) {
                res.progress({ start: 0, end: data.count(), count: data.count() }, data);
            }

            this._symbolDraw.updateLayout(createSymbolDrawOpt(seriesModel));
        }
    }