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Index › Programming Questions & Help › Syntax Questions › mouseovers on a bezier
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mouseovers on a bezier (Read 431 times)
adject
mouseovers on a bezier
Apr 21st, 2009, 3:52pm  
Hello! I'm very new to programming but I'm hitting a wall and wondering how to mouseover a bezier curve? Do I have to make an array with each x and each y in the curve and then do a for loop that checks to see whether or not the mouse is on each point? Is there an easier way? Thanks!
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adject
Re: mouseovers on a bezier
Reply #1 - Apr 21st, 2009, 5:01pm  
Oh and yeah. How the heck do I get all of the points in a bezier into an array? I mean, is that business accessible at all? thanks!
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PhiLho 
Re: mouseovers on a bezier
Reply #2 - Apr 21st, 2009, 11:25pm  
Somebody asked the question a while ago and I searched a solution. That's not that easy if you need to be efficient.
Storing the x, y coordinates isn't possible, you have an infinity of coordinates, and it is hard to do if you map to pixels...
bezierPoint() might be useful anyway.
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clankill3r
Re: mouseovers on a bezier
Reply #3 - Apr 22nd, 2009, 3:06am  
get x y
where you use the mouse coördinates, if they have the color of the beziercurve then you know you hit it with your mouse.

If this give's a problem because more things have the same color then you meight be able to draw first the beziercurve and immeiatly after that check the x-y before drawning other things.
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adject
Re: mouseovers on a bezier
Reply #4 - Apr 22nd, 2009, 5:34pm  
Thanks! I will try checking the pixel color (although there are a few hundred beziers all of the same color so I may have to change the colors or just scrap that functionality for now). On the other hand, that bezierpoint is great and solves another problem I was having (making the beziers thin on one end and thick at the other).

Thanks!!!
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