Draw a circle (wireframe and solid versions) with C# DirectX

[EFileTahi-A]

I understand that DirectX has no primitives for such task. I also understand that the circle should be done with the Line object, through connected segments. But all examples I've found so far are in c++;

 

Come someone one help me?

 

Thanks

[snarfblam]

Is there something in particualar that is stopping you from converting the code to C#? I'm guessing that the C++ code does not use MDX, but if your difficulty is in understanding the different syntax, maybe I could help with the translation.

[EFileTahi-A]

Well, I manged to make it work:

 

for (float fAngle = 0.0f; fAngle <= (2.0f * Math.PI); fAngle += fSteps)
{
     v2[0].X = ptCenter.X + (iRadius * (float)Math.Sin(fAngle));
     v2[0].Y = ptCenter.Y + (iRadius * (float)Math.Cos(fAngle));

     VAR.dxSpriteMain.Draw((Texture)VAR.htGfxResources["1x1"], new Rectangle(0, 0, 1, 1), new Vector3(0, 0, 0), new Vector3(v2[0].X, v2[0].Y, 0), color);
}

 

This is the dot version. But since I did not find any pixel or dot object I'm using a 1x1 texture to build the dots... Too bad some of them get kinda antialized.

[snarfblam]

I'm far from an MDX expert, so sorry if this is a useless thought, but could you draw a dot as a line where both endpoints have the same coordinates?