sync

git-svn-id: http://svn.clifford.at/openscad/trunk@520 b57f626f-c46c-0410-a088-ec61d464b74c

doc/TODO.txt

@@ -142,16 +142,15 @@ o C++-ify
   - Use static_cast/dynamic_cast instead of C-style casts
 o dxflinextrude and dxfrotextrude could share code
 o Consider decoupling DXF-specific functionality from the 2D subsystem
-o Make the interfaces from OpenSCAD and OpenCSG and CGAL cleaner to facilitate
-  experimentation with other frameworks (ref. Nef_polyhedron_2() problems)
-o Decouple CGAL and OpenCSG operations from the node tree -> visitor
-  - Make AbstractNode members private/protected
+o Visitation refactoring
+  - Make AbstractNode members private/protected?
 
 TESTING
 -------
 o Caching and MDI looks suspicious when the code relies on external resources
   which might be loaded from difference locations in different documents
   -> we might get a false cache hit
+o Are contructs like "child(0)" cached? Could this give false cache hits?
 o Write some cmd-line apps that dump an openscad file to misc. formats
   (dump, stl, dxf)
 o Write a simple test script that collects verified and current STL renderings