java ADF 如何将平面坐标转换为经纬度

public void getIdentity(MapEvent exent) {
  WebContext ctx = exent.getWebContext();
  WebPoint point = (WebPoint)exent.getWebGeometry();
  point = (WebPoint)point.toMapGeometry(ctx.getWebMap());
  double x=point.getX();
  double y=point.getY();
}

此时x，y的值为1070714.3326015235，3765220.3168944316，这应该是平面坐标


WebSpatialReference ws=exent.getWebGeometry().getSpatialReference().getWebSpatialReference((int)esriSRGeoCSType.esriSRGeoCS_NAD1983);
                       
                        WebPoint point1=(WebPoint)point.project(ws);
                        double jd=point1.getX();
                        double wd=point1.getY();
                        logger.debug("经度："+jd);
                        logger.debug("纬度："+wd);

转载于:https://www.cnblogs.com/j3eee/archive/2009/02/26/1398974.html