Refactor the Geometry2DDataVtkMapper3D.
(Some) Issues are:
-there are member variables which are only used inside one method
-there are complecated and unnecessary if-else clauses like in l. 486:
else if ( !m_DisplayNormals ) { if ( m_NormalsActorAdded ) { [...] } }
which could be simplyfied.
-the methods GenerateData and ProcessNode are very unclear
-there are huge code parts which are out commented
-the method FindPowerOfTwo seems not be to be used at all
-try to simplify the whole mapper