//#####################################################################
/// <summary>
/// 根据星历表,创建新的PathPrimitive</para>
/// </summary>
/// <param name="ephemeris">卫星星历数据</param>
/// <param name="frame">参考系</param>
public static PathPrimitive CreatePathPrimitiveFromEphemeris(DateMotionCollection <Cartesian> ephemeris, ReferenceFrame frame)
{
try
{
List <PathPoint> points = new List <PathPoint>();
for (int i = 0; i < ephemeris.Count; i++)
{
points.Add(new PathPointBuilder(ephemeris.Values[i], ephemeris.Dates[i], Color.Yellow).ToPathPoint());
}
PathPrimitive pathPrimitive = new PathPrimitive();
//pathPrimitive.UpdatePolicy = new DurationPathPrimitiveUpdatePolicy(new Duration(0, 60), PathPrimitiveRemoveLocation.RemoveLocationFront);
pathPrimitive.ReferenceFrame = frame;
//pathPrimitive.AddRangeToFront(points);
pathPrimitive.AddRangeToBack(points);
pathPrimitive.Width = 3.0F;
SceneManager.Animation.Time = ephemeris.Dates[0];
return(pathPrimitive);
}
catch (Exception ex)
{
throw new Exception(ex.Message + "\n" + "向3D图中画卫星轨迹出错!");
}
}