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: Steve Weller <email@hidden>
- Date: Sat, 26 Apr 2008 15:43:22 -0700
On Apr 21, 2008, at 5:23 PM, Steve Weller wrote:
I my app I want to be able to use drawing paths for two purposes:
1. Clip images to the path
2. Generate points that lie on the path as a function of the
distance along the path
I want to be able to create paths with Omnigraffle or some other
vector-image app, and export them to PDF or EPS or equivalent
format. The objects I am dealing with could have multiple path
segments and/or paths that intersect themselves and each other. I
will probably use Quartz rather than Cocoa drawing.
I expected to see a class method for NSBezierPath that would grab a
path from a file, but it is not there. So:
1. What file format should I use to store my paths?
2. How do I get the path into an object that I can use?
I can clip images to a path by using the addClip method on the
NSBezierPath. Are there any easy ways of calculating the points on
the path as a function of the distance from the start of the path?
Having researched #2 above and found a number of resources that say
"It's not trivial", I encountered the developer example code for
Voyeur. It's an app that looks inside PDFs and extracts, lists, and
renders them. So there is a decent example, but it is certainly not
trivial. Carbon and Quartz. I pretty much expected to be working in
Quartz, but it looks like there are no nice Cocoa classes to help me.
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