[GRASS5] Polygon Simplification... (d.area revisited)

Alex Shevlakov sixote at yahoo.com
Tue Dec 11 07:48:54 EST 2001

I guess this is to enable functions like R_polygon_abs
to handle islands?

--- "Eric G. Miller" <egm2 at jps.net> wrote:
> Okay, haven't finished implementing it yet, but I
> managed to try
> writing up how I'm attempting to do it...
> (bring out the way-back machine about d.area and
> handling
> holes as well as clipping...).
> I think I understand an algorithm that should
> produce the
> desired results.  But I haven't yet finished
> implementing it.
> Given, it might take me a while to get it done, I
> thought I'd
> try to explain it, and if any enterprising soul
> wants to
> give it a crack... just try to get it done before I
> do ;-)
> I've posted a little write-up and some poorly done
> graphics
> that try to illustrate the process at:
> Perhaps it will make sense to someone?  Perhaps it
> is flawed?
> Perhaps I will figure out how to get working code
> for it...?
> With a little bit more thought, I think the general
> concept
> described can be extended/modified for general
> overlay
> operations...
> -- 
> Eric G. Miller <egm2 at jps.net>
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