Re: How to import drawing paths into a Cocoa application?
Subject : Re: How to import drawing paths into a Cocoa application? From: Graham Cox <email@hidden >
Date: Tue, 22 Apr 2008 10:35:01 +1000
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Are there any easy ways of calculating the points on the path as a
function of the distance from the start of the path?
I'm not sure about the rest of your question but I can answer this
part. The short answer is no - it's really tricky. However if you have a look at my DrawKit project, it solves this
problem exactly ;-) One category method on NSBezierPath I have is: - (NSPoint) pointOnPathAtLength:(float) length slope:(float*) slope; where <length> is the linear distance from the start of the path - it
optionally also returns the slope (dy/dx) at the given point. The
project is still in beta though this method is used a lot in my code
and is well debugged. http://apptree.net/drawkitmain.html G.
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