message: Good angle only for 3D views !
diff: @@ -721,6 +721,7 @@ namespace RINGMesh
  RINGMeshApplication& app, const std::string& filename )
  : RINGMeshApplication::GeoModelViewerBase< 3 >( app, filename )
  {
  + GEO::CmdLine::set_arg("gfx:rotate","1,0.5,1,80");
  volume_style_.color_ = grey;
  volume_style_.size_ = 1;
  volume_style_.visible_vertices_ = false;
  