public static bool DrawAltAzGridText(RenderContext renderContext, float opacity, Color drawColor)
{
Coordinates zenithAltAz = new Coordinates(0, 0);
Coordinates zenith = Coordinates.HorizonToEquitorial(zenithAltAz, SpaceTimeController.Location, SpaceTimeController.Now);
double raPart = -((zenith.RA - 6) / 24.0 * (Math.PI * 2));
double decPart = -(((zenith.Dec)) / 360.0 * (Math.PI * 2));
string raText = Coordinates.FormatDMS(zenith.RA);
Matrix3d mat = Matrix3d.RotationY((float)-raPart - Math.PI);
mat.Multiply(Matrix3d.RotationX((float)decPart));
mat.Invert();
MakeAltAzGridText();
Matrix3d matOldWorld = renderContext.World.Clone();
Matrix3d matOldWorldBase = renderContext.WorldBase.Clone();
renderContext.WorldBase = Matrix3d.MultiplyMatrix(mat, renderContext.World);
renderContext.World = renderContext.WorldBase.Clone();
renderContext.MakeFrustum();
AltAzTextBatch.ViewTransform = Matrix3d.InvertMatrix(mat);
AltAzTextBatch.Draw(renderContext, opacity, drawColor);
renderContext.WorldBase = matOldWorldBase;
renderContext.World = matOldWorld;
renderContext.MakeFrustum();
return(true);
}
public static bool DrawEquitorialGridText(RenderContext renderContext, float opacity, Color drawColor)
{
MakeEquitorialGridText();
EquTextBatch.Draw(renderContext, opacity, drawColor);
return(true);
}
public static bool DrawGalacticGridText(RenderContext renderContext, float opacity, Color drawColor)
{
MakeGalacticGridText();
GalTextBatch.Draw(renderContext, opacity, drawColor);
return(true);
}
public static bool DrawEclipticText(RenderContext renderContext, float opacity, Color drawColor)
{
MakeEclipticText();
EclipOvTextBatch.Draw(renderContext, opacity, drawColor);
return(true);
}
public static bool DrawPrecessionChart(RenderContext renderContext, float opacity, Color drawColor)
{
MakePrecessionChart();
PrecTextBatch.Draw(renderContext, opacity, drawColor);
precLineList.DrawLines(renderContext, opacity, drawColor);
return(true);
}
public static void DrawConstellationNames(RenderContext renderContext, float opacity, Color drawColor)
{
if (NamesBatch == null)
{
InitializeConstellationNames();
if (NamesBatch == null)
{
return;
}
}
NamesBatch.Draw(renderContext, opacity, drawColor);
}