projection: fallback to 'large thin box' if intersection with plane fails.

also implement SVG debugging output for 2d + 3d Nef Polyhedrons.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/cgal.h b/src/cgal.h
index e5e39dd..2ca82d3 100644
--- a/src/cgal.h
+++ b/src/cgal.h
@@ -54,6 +54,8 @@ typedef CGAL::Polyhedron_3<CGAL_Kernel3> CGAL_Polyhedron;
 typedef CGAL_Polyhedron::HalfedgeDS CGAL_HDS;
 typedef CGAL::Polyhedron_incremental_builder_3<CGAL_HDS> CGAL_Polybuilder;
 
+typedef CGAL::Cartesian<NT>::Iso_cuboid_3 CGAL_Iso_cuboid_3;
+
 #ifdef PREV_NDEBUG
 #define NDEBUG PREV_NDEBUG
 #endif