arcgis api for js之坐标系统转换

最新推荐文章于 2025-09-22 10:57:23 发布

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本文介绍如何使用ArcGIS API进行坐标系转换，具体演示了从地理坐标(wkid:4326)到投影坐标(wkid:4527)的转换过程。通过创建ProjectParameters实例并设置输出坐标系及待转换的点，最后调用GeometryService的project方法完成转换。

require([
            "esri/SpatialReference",
            "esri/tasks/GeometryService",
            "esri/geometry/Point",
            "esri/tasks/ProjectParameters"
        ],
        function (SpatialReference, GeometryService, Point,ProjectParameters) {
            var gsvc = new GeometryService("https://utility.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");

            var PrjParams = new ProjectParameters();

            PrjParams.outSR = new SpatialReference({wkid: 4527});//需要输出的坐标系

            PrjParams.geometries = [];//几何类型数组，比如多个点可以批量转换
            var point1 = new Point(116, 36, new SpatialReference({ wkid: 4326 }));
            var point2 = new Point(116, 36.5, new SpatialReference({ wkid: 4326 }));
            PrjParams.geometries.push(point1);
            PrjParams.geometries.push(point2);

            //点的坐标转换，地理坐标(wkid:4326)转为投影坐标(wkid:4527)
            gsvc.project(PrjParams, function (outputpoints) {
                console.log(outputpoints)
            });

        })

参考：https://blog.youkuaiyun.com/cj9551/article/details/79254604