Meak attempt to clarify this code (which is extraordinarily complex)
Meak attempt to clarify this code (which is extraordinarily complex)

Change-Id: Id67c75c6a8908120722c35af5402418691fb6f69

keithroe/vtkoptix,ashray/VTK-EVM,demarle/VTK,mspark93/VTK,SimVascular/VTK,gram526/VTK,jmerkow/VTK,demarle/VTK,sankhesh/VTK,keithroe/vtkoptix,mspark93/VTK,biddisco/VTK,msmolens/VTK,msmolens/VTK,demarle/VTK,hendradarwin/VTK,hendradarwin/VTK,johnkit/vtk-dev,candy7393/VTK,collects/VTK,keithroe/vtkoptix,gram526/VTK,hendradarwin/VTK,msmolens/VTK,gram526/VTK,gram526/VTK,ashray/VTK-EVM,collects/VTK,hendradarwin/VTK,hendradarwin/VTK,hendradarwin/VTK,sumedhasingla/VTK,aashish24/VTK-old,sumedhasingla/VTK,sumedhasingla/VTK,aashish24/VTK-old,aashish24/VTK-old,berendkleinhaneveld/VTK,biddisco/VTK,SimVascular/VTK,sankhesh/VTK,johnkit/vtk-dev,mspark93/VTK,berendkleinhaneveld/VTK,johnkit/vtk-dev,berendkleinhaneveld/VTK,keithroe/vtkoptix,candy7393/VTK,keithroe/vtkoptix,gram526/VTK,aashish24/VTK-old,sumedhasingla/VTK,gram526/VTK,sankhesh/VTK,msmolens/VTK,collects/VTK,keithroe/vtkoptix,ashray/VTK-EVM,jmerkow/VTK,sumedhasingla/VTK,sumedhasingla/VTK,mspark93/VTK,sankhesh/VTK,SimVascular/VTK,SimVascular/VTK,msmolens/VTK,berendkleinhaneveld/VTK,demarle/VTK,johnkit/vtk-dev,ashray/VTK-EVM,keithroe/vtkoptix,candy7393/VTK,ashray/VTK-EVM,sankhesh/VTK,sumedhasingla/VTK,sankhesh/VTK,demarle/VTK,SimVascular/VTK,berendkleinhaneveld/VTK,johnkit/vtk-dev,jmerkow/VTK,demarle/VTK,biddisco/VTK,collects/VTK,hendradarwin/VTK,SimVascular/VTK,candy7393/VTK,berendkleinhaneveld/VTK,collects/VTK,biddisco/VTK,sankhesh/VTK,biddisco/VTK,biddisco/VTK,biddisco/VTK,ashray/VTK-EVM,mspark93/VTK,sumedhasingla/VTK,johnkit/vtk-dev,collects/VTK,gram526/VTK,ashray/VTK-EVM,jmerkow/VTK,SimVascular/VTK,mspark93/VTK,jmerkow/VTK,candy7393/VTK,candy7393/VTK,gram526/VTK,jmerkow/VTK,mspark93/VTK,candy7393/VTK,jmerkow/VTK,berendkleinhaneveld/VTK,johnkit/vtk-dev,sankhesh/VTK,msmolens/VTK,msmolens/VTK,ashray/VTK-EVM,msmolens/VTK,mspark93/VTK,SimVascular/VTK,demarle/VTK,keithroe/vtkoptix,aashish24/VTK-old,jmerkow/VTK,demarle/VTK,aashish24/VTK-old,candy7393/VTK