【ArcGIS for Android】经纬度坐标、地图投影坐标、屏幕坐标互相转换

【ArcGIS for Android】经纬度坐标、地图投影坐标、屏幕坐标互相转换

1. 屏幕坐标转换成投影坐标

MapView map;
...
public void onSingleTap(float x, float y) {
    Point clickPoint  = map.toMapPoint(x,y)；
...

2. 投影坐标转换成经纬度
接1，

Point wgsPoint = (Point) GeometryEngine.project(clickPoint ,map.getSpatialReference(),SpatialReference.create(4326));

3、经纬度转换成投影坐标

Point mapPoint = (Point) GeometryEngine.project(wgsPoint ,SpatialReference.create(4326),map.getSpatialReference());

4、投影坐标转换成屏幕坐标
接3，

Point screenPoint = map.toScreenPoint(mapPoint);