[GRASS5] gpc and CGAL non-free

Buchan Milne bgmilne at cae.co.za
Thu Jun 19 06:35:26 EDT 2003

Hash: SHA1

Bernhard Reiter wrote:
> On Wed, Jun 18, 2003 at 12:47:39PM -0400, John Gillette wrote:
>>Ref: general polygon clipper library (gpc)
>>     http://www.cs.man.ac.uk/aig/staff/alan/software/index.html
>>     CGAL, the Computational Geometry Algorithms Library
>>     CGAL Basic Library Manuals, Polygon Operations
>>     http://www.cgal.org/Manual/doc_html/index.html
> Keep in mind that both gpc and CGAL are non-free.
> Looking at their code for reference _might_ get you into trouble
> if you implement similiar functionality some day.
> (I know that is a hard thing to say, but looking at the screaming SCO
> comes up with in the ongoing kernel case we really see the dangers
> of proprietory code. And this is depressing.)

Was libart not written as a free (LGPL) replacement for this?


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