Method getHostGeoModel

src/chart/map/MapSeries.ts:177–187

* If no host geo model, return null, which means using a * inner exclusive geo model.

()

     * inner exclusive geo model.
     */
    getHostGeoModel(): GeoModel {
        if (decideCoordSysUsageKind(this).kind === COORD_SYS_USAGE_KIND_BOX) {
            // Always use an internal geo if specify as `COORD_SYS_USAGE_KIND_BOX`.
            // Notice that currently we do not support laying out a geo based on
            // another geo, but preserve the possibility.
            return;
        }
        return this.getReferringComponents(
            'geo', {useDefault: false, enableAll: false, enableNone: false}
        ).models[0] as GeoModel;
    }

    getMapType(): string {
        return (this.getHostGeoModel() || this).option.map;