Question

版本是iclient8C ，操作：在页面上话多边形，然后同时查询出多边形内的两个或者多个图层数据，并加载出来。能实现么？

Answer 1

您好， 可以实现，参考https://blog.csdn.net/supermapsupport/article/details/54311880

Comments

好的，我看看    谢谢

---

function drawGeometry1() {
            //先清除上次的显示结果
            clearStatus();
            drawPolygon1.activate();
        }
        function drawCompleted(drawGeometryArgs) {
            drawGeometryArgs.feature.style = style;
            vectorLayer.redraw();

            var queryParam[], queryByGeometryParameters, queryService;
            queryParam[0] = new SuperMap.REST.FilterParameter({ name: "BUF_500@ZhengZhouNullArea" });
            queryParam[1] = new SuperMap.REST.FilterParameter({ name: "AreaNull@ZhengZhouNullArea" });
            queryByGeometryParameters = new SuperMap.REST.QueryByGeometryParameters({
                queryParams: [queryParam],
                geometry: drawGeometryArgs.feature.geometry,
                spatialQueryMode: SuperMap.REST.SpatialQueryMode.INTERSECT
            });
            queryService = new SuperMap.REST.QueryByGeometryService(url5, {
                eventListeners: {
                    "processCompleted": processCompleted,
                    "processFailed": processFailed
                }
            });
            queryService.processAsync(queryByGeometryParameters);
        }
 

我这样写的时候，geometry: drawGeometryArgs.feature.geometry,这一行代码报错，提示Unexpected token