三维环绕浏览的代码示例

第一步：取得摄像机控制对象

CameraController ca = EvEarthControl.CameraControl;

IEvEarthScene scene = Appcation.EvEarthControl.Scene.EvEarthScene as IEvEarthScene;
IEvEarthCamera camera = scene.Camera as IEvEarthCamera;

第二步：获得LooAt对象
EvEarthLookAt at = camera.GetLookAt();

第三步：通过摄像机控制对象实现环绕浏览

ca.Surround(at.Longitude, at.Latitude, at.Altitude, 2, camera.Altitude, at.Range);