CGAL users discussion list

["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/