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Mixing object and direct graphics [message #83219]

Sun, 17 February 2013 08:56

wlandsman
Messages: 743
Registered: June 2000

Senior Member

I'm working on a very large widget image analysis program, which uses direct graphics (so the GRAPHICS_LEVEL keyword to WIDGET_DRAW is set to its default value of 1). I'd like to add a spinning crosshair cursor so that I can measure angles on the image. I have done this successfully in a little object graphics program (i.e. setting GRAPHICS_LEVEL = 2 in WIDGET_DRAW) using the TRACKBALL object. Will I be able to use the TRACKBALL object in my large direct graphics program? I suppose I will find the answer myself soon enough, but perhaps someone has experience with this.

Alternatively, can someone recommend an interactive method for measuring angles on a direct graphics image? Thanks, --Wayne

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