CGAL users discussion list

[Andreas Fabri <>]

On 27/02/2012 01:44, lucadeltodesco wrote:
> I'm the developer of a 2d physics engine in the Haxe language, mainly used in
> the Flash platform in which I have some geometric utilities, one of which is
> fairly heavily based upon the green_approx_convex_decomposition routine in
> CGAL, and another lightly based upon the y_monotone_partition routine.
>
> That I was aware (I have little knowledge of licensing), that my engine is
> itself open source was enough to satisfy the licensing terms.
>
> It's been suggested to me now that because my engine has these parts derived
> from CGAL, that any users of my engine would also need to open-source their
> games?
>
> Could I have some clarity on this issue?
>
> --
> View this message in context: 
> http://cgal-discuss.949826.n4.nabble.com/Question-about-licensing-terms-tp4423316p4423316.html
> Sent from the cgal-discuss mailing list archive at Nabble.com.


Up to CGAL 3.9 the functions you use are licensed under the QPL.
Starting with CGAL 4.0  they are licensed under the GPL v3+.

Both licenses require that if you distribute your software
you must distribute them under an open source license, and
for the GPL this must even be the GPL again.

The same holds for those who used your software.

Best regards,

Andreas

--
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project

phone: +33.492.954.912    skype: andreas.fabri