Re: How to import drawing paths into a Cocoa application?
Re: How to import drawing paths into a Cocoa application?
- Subject: Re: How to import drawing paths into a Cocoa application?
- From: "John C. Randolph" <email@hidden>
- Date: Sat, 26 Apr 2008 19:24:20 -0700
On Apr 21, 2008, at 5:35 PM, Graham Cox wrote:
- (NSPoint) pointOnPathAtLength:(float) length slope:(float*) slope;
I notice that your lengthOfBezier() function does an approximation
similar to what we'd get in postscript by executing flattenpath and
then adding up the lengths of the resulting line segments.
I've asked several math majors over the years if they could give me an
exact function for the length of a bezier curve. They've generally
told me it was possible, but none of them actually produced it.
If there are any mathematicians on this list who can solve for the
length of a bezier cubic spline, please enlighten me!
-jcr
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