Path: news.mathworks.com!newsfeed-00.mathworks.com!newsfeed2.dallas1.level3.net!news.level3.com!postnews.google.com!i12g2000prf.googlegroups.com!not-for-mail
From: glaroc <glaroc@gmail.com>
Newsgroups: comp.soft-sys.matlab
Subject: Intersect circle and irregular shape
Date: Mon, 7 Jan 2008 14:37:10 -0800 (PST)
Organization: http://groups.google.com
Lines: 12
Message-ID: <66c9ae27-c839-41e2-a9a3-d5dcc7f311a7@i12g2000prf.googlegroups.com>
NNTP-Posting-Host: 142.157.84.32
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
X-Trace: posting.google.com 1199745430 30625 127.0.0.1 (7 Jan 2008 22:37:10 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Mon, 7 Jan 2008 22:37:10 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: i12g2000prf.googlegroups.com; posting-host=142.157.84.32; 
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux x86_64; en-CA; rv:1.8.1.11) 
Xref: news.mathworks.com comp.soft-sys.matlab:444750


Hi, I am looking for ways to calculate the percentage of the
circumference of a circle enclosed within an intersecting irregular
polygon. For example, if I have a circle centered within a triangle, I
want to know how much of the circumference of the circle is contained
within the triangle. This could be anywhere between 0 and 100. I know
I can do this in a topological GIS, but I really need Matlab for this.
I want to use this to build an edge correction program. I couldn't
find anything in the Matlab file central or anywhere else.

Thank you for any help you may provide,

GL