extract coordinates from contour lines

From: David Winsemius <dwinsemius at comcast.net>
Subject: Re: [R] extract coordinates from contour lines
To: "Julius Tesoro" <jutesoro at yahoo.com>
Cc: r-sig-geo at stat.math.ethz.ch, r-help at r-project.org
Date: Sunday, November 29, 2009, 6:13 AM

On Nov 28, 2009, at 4:40 PM, Julius Tesoro wrote:

To everyone,

Is there a way to extract coordinates or an equation

from a "straight" contour line?

Can you set up some sort of example to offer a hint about
what you want?

--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT