Method createThematicFeature

src/openlayers/overlay/Graph.js:160–173

* @function Graph.prototype.createThematicFeature * @description 向专题图图层中添加数据，支持的 feature 类型为：SuperMap iServer 返回的 feature JSON 对象。 * @param {ServerFeature} feature - 待添加的要素。 *

(feature)

     *
     */
    createThematicFeature(feature) {
        var thematicFeature;
        // 检查图表创建条件并创建图形
        if (FeatureTheme[this.chartsType] && this.themeFields && this.chartsSetting) {
            thematicFeature = new FeatureTheme[this.chartsType](feature, this, this.themeFields, this.chartsSetting);
        }
        // thematicFeature 是否创建成功
        if (!thematicFeature) {
            return false;
        }
        // 对专题要素执行图形装载
        thematicFeature.assembleShapes();
        return thematicFeature;
    }

    /**
     * @function Graph.prototype.drawCharts