CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

On 01/31/2012 08:12 AM, Don Bright wrote:
> Hello CGAL,
>
> I have re-implemented the functionality of OGL_helper.h by rewriting
> the whole thing. Would the Max-Planck-Institute consider the
> re-implementation to still be covered by their copyright, or is it
> under my copyright?
From what I get, if this is a patch to a file under QPL license, the 
copyright remains to the original author.

Note that even if you were sharing the copyright you are not allowed to
change the license of a file without the agreement of the other
copyright holders.

> My code uses the 'visitor' pattern of Nef polyhedron3 as described in
> the CGAL manual, and feeds the results to GLUtess. The code is not the
> same as OGL_helper.h, but it does bear a resemblance; there are only
> so many ways to iterate through a facet cycle after all (I use next()
> on a shalfedge_const_handle).
>
> The reason for re-implementation instead of subclassing is to get more
> control over the colors and the GLUtess code, and to make the OpenSCAD
> project fully GPL.
We probably be able to solve this issue next week.

Sebastien.
> Thank you
>
> -Don B