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  1. December 13th, 2017, 11:56 PM #1
    pnt1614
    pnt1614 is offline Junior Member
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    How to visualize a trackball using 3 circles

    I am using OpenGL and MFC. Now I want to visualize a trackball using 3 circles like the following image:

    Name: arcball.jpg Views: 304 Size: 36.3 KB

    Everytime a mouse hover a circle then the circle is drawn with a brighter color. Is there possible to do this using GDI or GDI+?
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  2. December 14th, 2017, 03:25 AM #2
    VictorN's Avatar
    VictorN
    VictorN is offline Super Moderator Power Poster
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    Re: How to visualize a trackball using 3 circles

    Quote Originally Posted by pnt1614 View Post
    I am using OpenGL and MFC. Now I want to visualize a trackball using 3 circles like the following image:
    ...
    Everytime a mouse hover a circle then the circle is drawn with a brighter color. Is there possible to do this using GDI or GDI+?
    I guess it is possible.
    Victor Nijegorodov
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  3. January 3rd, 2018, 11:38 PM #3
    A_Singh
    A_Singh is offline Member
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    Re: How to visualize a trackball using 3 circles

    This will surely help you.
    http://http://web.cse.ohio-state.edu.../trackball.pdf
    If you like my answer, do rate my post.
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