Re: [dev] Re: Some Issues regarding Debian versus OOo versions and Support?
Hi Peter,
I looked at each piece of software there and the only one I could find
(i.e the link worked) that actually had an LGPL license was clippoly.
Is this the same software you used to try to replace gpc?
I looked and clipoly did not handle polygons with holes or
self-intersecting polygons.
The self-interesting part does not bother me so much since and
self-intersection polygon can be broken down into two or more
non-self-intersecting polygons. So we could modify the code in question
to check each polygon passed to it for self intersection, and replace that
polygon with the appropiate pieces..
Is this what you tried?
Thanks,
Kevin
On April 23, 2002 01:49, Peter Novodvorsky wrote:
> "Kevin B. Hendricks" <kevin.hendricks@sympatico.ca> writes:
> > One more thing. Building a polygon clipper can't be that hard.
> >
> > I have a long history of writing my own mathematical modelling
> > software and I do not see how determining the intersection of general
> > polygons is that hard. All polygons can be decomposed into
> > combinations of basic geometic forms that each can easily be checked
> > for intersections to determine how to clip specific regions (if that
> > is even what gpc does!).
>
> gpc also clips the polygons. good start is here:
> http://home.attbi.com/~msleonov/pbcomp.html
>
> You have more experience in this area, so It will be interesting to
> get your point of view on this problem.
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