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Index › Programming Questions & Help › Programs › Text on a Path
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Text on a Path? (Read 1198 times)
julian_t
Text on a Path?
Jun 17th, 2005, 7:23pm  
Is there a simple way to draw a text string along a path (i.e. a Bezier curve?)

thanks,

julian
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mflux
Re: Text on a Path?
Reply #1 - Jun 17th, 2005, 9:13pm  
I don't think there's any "easy" way to do this.

First you need bezierPoint() to get the position on a bezier. Thank Fry for this, without this... getting bezier points is a real nasty excercise...

http://processing.org/reference/bezierPoint_.html


Then you can probably use bezierTanget() to give you the normals for how to rotate your text.

http://processing.org/reference/bezierTangent_.html

I swear.. this makes it so easy. LOL!

Then you need to chop up your string or whatever you're writing into chars, then draw the chars onto the points and rotate them accordingly. Should be a snap!
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v3ga
Re: Text on a Path?
Reply #2 - Jun 17th, 2005, 11:20pm  
You can check : http://v3ga.net/show.php?id=7&type=0

The code is provided, there's a function called DrawLetterAt(s,c) which takes as input a curved absciss on a bezier path and a char. As Mflux said, it's all about getting a kind of basis at that point by calculating the tangent (now integrated in Processing). Hope this little code snippet will help.
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julian_t
Re: Text on a Path?
Reply #3 - Jun 18th, 2005, 11:27pm  
Thanks! That looks like a very good place to start.

jt
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