超图叠加分析类OverlayAnalystService

来源：互联网发布：彩票数据分析预测软件编辑：程序博客网时间：2024/04/30 15:12

功能：计算超图Polygon区域内所有房屋的id（相交）

所用类：OverlayAnalystService、OverlayAnalystParameters

document.getElementById("btnStatistics").onclick = function () {    var points = new Array();    //创建超图Polygon对象，superMapPointsArray是坐标点的集合    for(var i =0;i<superMapPointsArray.length;i++){        points.push(new SuperMap.Geometry.Point(superMapPointsArray[i],superMapPointsArray[++i]));    }    var linearRings = new SuperMap.Geometry.LinearRing(points);    var region = new SuperMap.Geometry.Polygon([linearRings]);    var datasetParmaeters = new SuperMap.REST.DatasetOverlayAnalystParameters({        operateRegions:[region],//区域        sourceDataset:'FW_340413@ORCL_wisdom3d_07222',        sourceDatasetFields:["LSZD","FWID"],//返回的字段        operation: SuperMap.REST.OverlayOperationType.INTERSECT //相交    });

    //基于数据集的叠加分析结果集资源服务    var spatialUrl = "http://192.168.80.210:8090/iserver/services/spatialAnalysis-jtscene0722/restjsr/spatialanalyst";    var myOverlayAnalystService = new SuperMap.REST.OverlayAnalystService(spatialUrl, {        eventListeners: {            "processCompleted": OverlayCompleted,            "processFailed": OverlayFailed        }    });

    //负责将客户端的查询参数传递到服务端。    myOverlayAnalystService.processAsync(datasetParmaeters);};function OverlayCompleted(fwInfo) {    var info = fwInfo.originResult.recordset.features;    debugger;    console.log("成功：" + info.toString());}function OverlayFailed(args) {    console.log("失败：" + args);}

参考超图API For JavaScript ：http://support.supermap.com.cn:8090/iserver/help/html/index.htm

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