Class MapSeries

src/chart/map/MapSeries.ts:117–374

export const SERIES_TYPE_MAP = 'map';

class MapSeries extends SeriesModel<MapSeriesOption> implements RoamHostModel {

    static readonly type = 'series.' + SERIES_TYPE_MAP;
    readonly type = MapSeries.type;

    static dependencies = ['geo'];

    static layoutMode = 'box' as const;

    coordinateSystem: Geo;

    // -----------------
    // Injected outside
    originalData: SeriesData;
    seriesGroup: MapSeriesGroup | NullUndefined;


    getInitialData(this: MapSeries, option: MapSeriesOption): SeriesData {
        const data = createSeriesDataSimply(this, {
            coordDimensions: ['value'],
            encodeDefaulter: zrUtil.curry(makeSeriesEncodeForNameBased, this)
        });
        const dataNameIndexMap = zrUtil.createHashMap<number>();
        const toAppendItems: MapDataItemOption[] = [];

        for (let i = 0, len = data.count(); i < len; i++) {
            const name = data.getName(i);
            dataNameIndexMap.set(name, i);
        }

        const geoSource = geoSourceManager.load(this.getMapType(), this.option.nameMap, this.option.nameProperty);
        zrUtil.each(geoSource.regions, function (region) {
            const name = region.name;
            const dataNameIdx = dataNameIndexMap.get(name);
            // apply specified echarts style in GeoJSON data
            const specifiedGeoJSONRegionStyle = (region as GeoJSONRegion).properties
                && (region as GeoJSONRegion).properties.echartsStyle;
            let dataItem: MapDataItemOption;
            if (dataNameIdx == null) {
                dataItem = { name: name };
                toAppendItems.push(dataItem);
            }
            else {
                dataItem = data.getRawDataItem(dataNameIdx) as MapDataItemOption;
            }
            specifiedGeoJSONRegionStyle && zrUtil.merge(dataItem, specifiedGeoJSONRegionStyle);
        });

        // Complete data with missing regions. The consequent processes (like visual
        // map and render) can not be performed without a "full data". For example,
        // find `dataIndex` by name.
        data.appendData(toAppendItems);

        return data;
    }

    /**
     * If no host geo model, return null, which means using a