public static void LongLatToPixelXY(double longitude, double latitude, double levelOfDetail, out double pixelX, out double pixelY)
{
latitude = VirtualEarthTileSystem.Clip(latitude, -85.05112878, 85.05112878);
longitude = VirtualEarthTileSystem.Clip(longitude, -180.0, 180.0);
double num = (longitude + 180.0) / 360.0;
double num2 = Math.Sin(latitude * 3.1415926535897931 / 180.0);
double num3 = 0.5 - Math.Log((1.0 + num2) / (1.0 - num2)) / 12.566370614359172;
uint num4 = VirtualEarthTileSystem.MapSize(levelOfDetail);
pixelX = VirtualEarthTileSystem.Clip(num * (double)num4 + 0.5, 0.0, (double)(num4 - 1));
pixelY = VirtualEarthTileSystem.Clip(num3 * (double)num4 + 0.5, 0.0, (double)(num4 - 1));
}
public static double GroundResolution(double latitude, int levelOfDetail)
{
latitude = VirtualEarthTileSystem.Clip(latitude, -85.05112878, 85.05112878);
return(Math.Cos(latitude * 3.1415926535897931 / 180.0) * 2.0 * 3.1415926535897931 * 6378137.0 / (double)VirtualEarthTileSystem.MapSize(levelOfDetail));
}