【ArcGIS for Android】經緯度座標、地圖投影座標、屏幕座標互相轉換

【ArcGIS for Android】經緯度座標、地圖投影座標、屏幕座標互相轉換

1. 屏幕座標轉換成投影座標

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

2. 投影座標轉換成經緯度 
接1，

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

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3、經緯度轉換成投影座標

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

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4、投影座標轉換成屏幕座標 
接3，

Point screenPoint = map.toScreenPoint(mapPoint);

轉載自http://blog.csdn.net/anykiuro/article/details/51425899