CGAL users discussion list

[Marco Aurelio Sterpa <>]

Thank you for your precise and helpful answer, maybe I'll try with Qt. Best regards

2009/10/4 Laurent Rineau (GeometryFactory) <>

Le dimanche 04 octobre 2009 18:14:58, Sterpa a écrit :
> I got an unusual problem with geomview, it shows an entire black screen in
>  the main window. Trying to rotate or zoom on the visualization the image
>  refresh and shows the right content for just a second, and then again the
>  black background. The code is the following:
>
> void algorithm_2(vector<Line_2> lines, int k) {
> CGAL::Geomview_stream gv(CGAL::Bbox_3(-100, -100, 0, 600, 600, 0));
>
> gv.set_line_width(2);
>
> gv.set_bg_color(CGAL::WHITE);
>
> gv.set_vertex_radius(5);
> for(unsigned j = 0; j < lines.size(); j++) gv << lines[j];
> getchar();
> }

I thing nobody can help. Geomview has bugs, and so have graphics drivers
(OpenGL drivers). Your code looks correct. In my opinion, you have hit a bug
of either Geomview or your graphics driver (or even maybe a bad interaction
between them).  Pray no to have the last version of both of them, and upgrade!

--
Laurent Rineau, PhD
Release Manager of the CGAL Project
http://www.cgal.org/
R&D Engineer at GeometryFactory
http://www.geometryfactory.com/
--
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