Draw arcs

This is a discussion on Draw arcs within the Game Programming forums, part of the General Programming Boards category; Me again To draw lines and points are easy with DirectX but I can't find any built ins for arc ...

  1. #1
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    Draw arcs

    Me again

    To draw lines and points are easy with DirectX but I can't find any built ins for arc or ellipses or splines. I could create a circle by drawing alot of small lines but I wonder if that is the right way to do it. What is the best way to draw a circle with DirectX?

    ~Barjor

  2. #2
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    There are functions in GDI for drawing ellipses. There are also built in GDI functions for drawing Bezier Curves. There is not, that I know of, any functions for drawing splines. You can render them yourself though if you know the De Boor algorithm. If you need help with splines let me know and I can help you.

    I assume you know how to use the GDI stuff with DirectX. If you don't, all you do is get a DC to the surface , perform the operation then release the DC.

  3. #3
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    Originally posted by MrWizard

    I assume you know how to use the GDI stuff with DirectX. If you don't, all you do is get a DC to the surface , perform the operation then release the DC.
    Will the GDI arc be rotated when I rotate my directX stuff?. If not it sounds easier to draw an arc with DirectX LineList then to modify the GDI arc to move with the DirectX rotation matrix. I have actually never combined GDI with directX, sounds cool, will give it a try later

    Thanks for the help

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