FYI, if anybody hits the same problem: As I learnt on the Cairo mailing list, the path creation and stroking may have different transformations in Cairo, see for example: http://lists.cairographics.org/archives/cairo/2008-June/014286.html
That solves the issue. Holger _______________________________________________ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list