我正在使用OrbitTools库使用类似于http://karhukoti.com的Bing Maps Silverlight控件开发卫星跟踪系统。
我对此领域不了解,并且缺乏很多与卫星跟踪有关的信息,但是由于我的上司选择了这个特定项目作为毕业项目,因此我已经开始自学。
但是,我面临许多困难,其中一个主要难题是如何将两个线元素(TLE)信息转换为经度纬度和高度,以在地图上显示卫星和卫星路径。
我尝试了以下C#代码:
protected void DisplaySatellitePath(List<Eci> Pos)
{
MapLayer myRouteLayer = new MapLayer();
myMap.Children.Add(myRouteLayer);
foreach (Eci e in Pos)
{
CoordGeo coordinates = e.toGeo();
Ellipse point = new Ellipse();
point.Width = 10;
point.Height = 10;
point.Fill = new SolidColorBrush(Colors.Orange);
point.Opacity = 0.65;
//Location location = new Location(e.Position.X, e.Position.X);
Location location = new Location(coordinates.Latitude, coordinates.Longitude);
MapLayer.SetPosition(point, location);
MapLayer.SetPositionOrigin(point, PositionOrigin.Center);
myRouteLayer.Children.Add(point);
}
}
并尝试了
protected void DisplaySatellitePathSecondGo(List<Eci> Pos)
{
MapLayer myRouteLayer = new MapLayer();
myMap.Children.Add(myRouteLayer);
foreach (Eci e in Pos)
{
Ellipse point = new Ellipse();
point.Width = 10;
point.Height = 10;
point.Fill = new SolidColorBrush(Colors.Yellow);
point.Opacity = 0.65;
Site siteEquator = new Site(e.Position.X, e.Position.Y, e.Position.Z);
Location location = new Location(siteEquator.Latitude, siteEquator.Longitude);
MapLayer.SetPosition(point, location);
MapLayer.SetPositionOrigin(point, PositionOrigin.Center);
myRouteLayer.Children.Add(point);
}
}
你能告诉我我在做什么错吗?我在网上搜索了有关OrbitTools的示例或文献,但是没有运气。
我真的希望有人使用此库可以对我有所帮助或提出更好的.NET库。
非常感谢你。
最佳答案
您还在努力吗?我注意到当我提取代码时,他们有一个与库一起提供的演示。在其中,它们显示了以下方法,我相信您一定已经看过:
静态void PrintPosVel(Tle tle)
{
轨道轨道=新轨道(tle);
ArrayList Pos = new ArrayList();
// Calculate position, velocity
// mpe = "minutes past epoch"
for (int mpe = 0; mpe <= (360 * 4); mpe += 360)
{
// Get the position of the satellite at time "mpe".
// The coordinates are placed into the variable "eci".
Eci eci = orbit.getPosition(mpe);
// Push the coordinates object onto the end of the array
Pos.Add(eci);
}
// Print TLE data
Console.Write("{0}\n", tle.Name);
Console.Write("{0}\n", tle.Line1);
Console.Write("{0}\n", tle.Line2);
// Header
Console.Write("\n TSINCE X Y Z\n\n");
// Iterate over each of the ECI position objects pushed onto the
// position vector, above, printing the ECI position information
// as we go.
for (int i = 0; i < Pos.Count; i++)
{
Eci e = Pos[i] as Eci;
Console.Write("{0,4}.00 {1,16:f8} {2,16:f8} {3,16:f8}\n",
i * 360,
e.Position.X,
e.Position.Y,
e.Position.Z);
}
Console.Write("\n XDOT YDOT ZDOT\n\n");
// Iterate over each of the ECI position objects in the position
// vector again, but this time print the velocity information.
for (int i = 0; i < Pos.Count; i++)
{
Eci e = Pos[i] as Eci;
Console.Write("{0,24:f8} {1,16:f8} {2,16:f8}\n",
e.Velocity.X,
e.Velocity.Y,
e.Velocity.Z);
}
}
在这种情况下,他们似乎正在进行所需的转换。关于您实际遇到的问题,我是否有所遗漏?