http://iclient.supermap.io/examples/classic/editor.html#analysis_overlayAnalystService
叠加分析参考这个范例,如果点和面都以数据集的方式发布到iserver上参考API为http://iclient.supermap.io/web/libs/iclient8c/apidoc/files/SuperMap/REST/SpatialAnalyst/DatasetOverlayAnalystParameters-js.html,
如果是前端绘制的geometry对象的话参考http://iclient.supermap.io/web/libs/iclient8c/apidoc/files/SuperMap/REST/SpatialAnalyst/GeometryOverlayAnalystParameters-js.html