Question

themeRange = new SuperMap.ThemeRange({
            rangeExpression: "SMAREA",
            rangeMode: SuperMap.RangeMode.EQUALINTERVAL,
            items: [themeRangeItem1, themeRangeItem2, themeRangeItem3]
        });
        themeParameters = new SuperMap.ThemeParameters({
            datasetNames: ["China_Province_pg"],
            dataSourceNames: ["China"],这里能不能用自己的geojson数据呢
            joinItems: null,
            themes: [themeRange]
        });