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Index › Programming Questions & Help › Syntax Questions › Using bezierPoint to find an X pos from a Y value
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Using bezierPoint to find an X pos from a Y value (Read 354 times)
davib
Using bezierPoint to find an X pos from a Y value
May 24th, 2009, 7:28am  
Better introduce myself first...

Hi all, I'm currently a design student but previously(9 years ago) studied "computer studies" where I learnt the very basics of programming. I discovered processing about six months ago and I'm loving combining new and old passions.

Anyway, I have just discovered the magic of bezierPoints, but have a question which is... Is it possible to find the X coordinate if you already have the Y? The only thing I've thought to try so far is norming the Y value and using that as parameter t but this doesn't seem to work.

Hope thats clear and thanks in advance,

David
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davib
Re: Using bezierPoint to find an X pos from a Y value
Reply #1 - May 24th, 2009, 12:52pm  
Just realised this could be quite a stupid? request as a point on a bezier curve could pass through the same y point more than once. I've thought about using a loop to check through values of t to find where any intersects could take place but think the incremental value will have to be very small otherwise the loop could miss the intersect.

Oh well  Sad.
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