private void TryConvertGeoCoord2PrjCoord(Feature fet)
{
/*
* 1.调用地图服务中的坐标转换接口进行地理坐标到投影坐标的转换
* 2.在异步转换事件中，生成XamlObject,往画布中添加
*/
GeoShape geometry = fet.Geometry;
if (fet.Geometry == null)
{
return;
}
IProjectableArguments arguments = fet.Geometry as IProjectableArguments;
if (arguments == null)
{
throw new NotImplementedException("几何类型\"" + geometry.GetType().ToString() + "\"未实现IProjectableArguments,无法进行投影转换。");
}
//
if ((arguments.Points == null && arguments.Points.Length == 0) &&
(arguments.SingleValues == null && arguments.SingleValues.Length == 0))
{
return;
}
List <AgileMapServiceProxy.PointF> points = new List <AgileMapServiceProxy.PointF>();
if (arguments.Points != null)
{
foreach (GeoPoint pt in arguments.Points)
{
AgileMapServiceProxy.PointF ptf = new AgileMapServiceProxy.PointF();
ptf.x = (float)pt.X;
ptf.y = (float)pt.Y;
points.Add(ptf);
}
}
int valueCount = 0;
if (arguments.SingleValues != null)
{
valueCount = arguments.SingleValues.Length;
foreach (double v in arguments.SingleValues)
{
AgileMapServiceProxy.PointF ptf = new AgileMapServiceProxy.PointF();
ptf.x = (float)v;
ptf.y = 0;
points.Add(ptf);
}
}
//
_map.ServerAgent.MapServiceClient.Geo2PrjAsync(new ObservableCollection <AgileMapServiceProxy.PointF>(points),
new FeatureUserState(fet, Id));
}