版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/bitree1/article/details/82148896
1方法1：
用
方法2：
使用arcgis 的geometry project方法 分别输入输出坐标系和gemetry值
方法3：https://developers.arcgis.com/javascript/3/jsapi/esri.geometry.projection-amd.html#project
代码调用arcgis 的API
// Project each polygon in the array. project() will use the spatial
// reference of the first geometry in the array as an input spatial
// reference. It will use the default transformation. If one is required
// when converting from input spatial reference to the output spatial reference.
var outSpatialReference = new SpatialReference({
wkid: 53008 //Sphere_Sinusoidal
});
polygonGraphics.forEach(function(graphic) {
graphic.geometry = projection.project(graphic.geometry, outSpatialReference);
});