[cairo] Anti-Grain Geometry - Yet another 2D Rendering Library
cworth at east.isi.edu
Fri May 7 05:43:24 PDT 2004
On Thu, 6 May 2004 13:53:57 -0700 (PDT), Maxim Shemanarev wrote:
> I have a similar project called Anti-Grain Geometry (AGG)
> that is an Open Source, free of charge graphic library
Thanks for the note. I had seen a reference to this software some time
ago, but it wasn't obvious to me then what the license was. It's nice to
see that it's distributed under a license that is compatible with that
for the work I'm currently doing with cairo, the following points look
> - Reliability and stability (including numerical stability).
There is a known numerical problem with the polygon tessellation
implementation in cairo right now, so I am investigating solutions. I
might want to take a look to see what you have in AGG.
> - Boolean polygon operations (and, or, xor, sub) based on Alan
> Murta's General Polygon Clipper.
Cairo doesn't have any boolean polygon operations in its API, but there
may be a place in the implementation where this could be handy.
Hmm... but it appears that Alan Murta's software is released under a
license that is only "free of charge for non-commercial users". That
kind of license is incompatible with the license of cairo.
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