ENH: added GetVoidPt.
ENH: added GetVoidPt.

mspark93/VTK,SimVascular/VTK,ashray/VTK-EVM,arnaudgelas/VTK,naucoin/VTKSlicerWidgets,sankhesh/VTK,sumedhasingla/VTK,SimVascular/VTK,biddisco/VTK,ashray/VTK-EVM,msmolens/VTK,spthaolt/VTK,biddisco/VTK,berendkleinhaneveld/VTK,mspark93/VTK,sumedhasingla/VTK,naucoin/VTKSlicerWidgets,johnkit/vtk-dev,gram526/VTK,cjh1/VTK,hendradarwin/VTK,mspark93/VTK,jeffbaumes/jeffbaumes-vtk,sankhesh/VTK,keithroe/vtkoptix,ashray/VTK-EVM,arnaudgelas/VTK,sgh/vtk,gram526/VTK,sankhesh/VTK,biddisco/VTK,mspark93/VTK,ashray/VTK-EVM,keithroe/vtkoptix,collects/VTK,sumedhasingla/VTK,SimVascular/VTK,cjh1/VTK,spthaolt/VTK,daviddoria/PointGraphsPhase1,demarle/VTK,demarle/VTK,collects/VTK,Wuteyan/VTK,cjh1/VTK,collects/VTK,gram526/VTK,daviddoria/PointGraphsPhase1,sankhesh/VTK,johnkit/vtk-dev,mspark93/VTK,jmerkow/VTK,gram526/VTK,candy7393/VTK,collects/VTK,msmolens/VTK,sgh/vtk,biddisco/VTK,aashish24/VTK-old,arnaudgelas/VTK,ashray/VTK-EVM,jeffbaumes/jeffbaumes-vtk,sumedhasingla/VTK,candy7393/VTK,daviddoria/PointGraphsPhase1,candy7393/VTK,biddisco/VTK,msmolens/VTK,aashish24/VTK-old,berendkleinhaneveld/VTK,msmolens/VTK,biddisco/VTK,jmerkow/VTK,jmerkow/VTK,gram526/VTK,collects/VTK,collects/VTK,msmolens/VTK,sgh/vtk,sankhesh/VTK,mspark93/VTK,sumedhasingla/VTK,jmerkow/VTK,Wuteyan/VTK,berendkleinhaneveld/VTK,SimVascular/VTK,jeffbaumes/jeffbaumes-vtk,candy7393/VTK,berendkleinhaneveld/VTK,aashish24/VTK-old,hendradarwin/VTK,Wuteyan/VTK,arnaudgelas/VTK,naucoin/VTKSlicerWidgets,jmerkow/VTK,mspark93/VTK,johnkit/vtk-dev,johnkit/vtk-dev,hendradarwin/VTK,aashish24/VTK-old,aashish24/VTK-old,keithroe/vtkoptix,spthaolt/VTK,SimVascular/VTK,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,cjh1/VTK,hendradarwin/VTK,SimVascular/VTK,spthaolt/VTK,jmerkow/VTK,sgh/vtk,arnaudgelas/VTK,spthaolt/VTK,candy7393/VTK,gram526/VTK,candy7393/VTK,keithroe/vtkoptix,keithroe/vtkoptix,daviddoria/PointGraphsPhase1,Wuteyan/VTK,hendradarwin/VTK,ashray/VTK-EVM,demarle/VTK,sankhesh/VTK,msmolens/VTK,jmerkow/VTK,gram526/VTK,naucoin/VTKSlicerWidgets,berendkleinhaneveld/VTK,spthaolt/VTK,msmolens/VTK,msmolens/VTK,sumedhasingla/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,demarle/VTK,sankhesh/VTK,candy7393/VTK,johnkit/vtk-dev,hendradarwin/VTK,aashish24/VTK-old,cjh1/VTK,cjh1/VTK,daviddoria/PointGraphsPhase1,keithroe/vtkoptix,Wuteyan/VTK,SimVascular/VTK,spthaolt/VTK,biddisco/VTK,demarle/VTK,jeffbaumes/jeffbaumes-vtk,johnkit/vtk-dev,sumedhasingla/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,candy7393/VTK,hendradarwin/VTK,jeffbaumes/jeffbaumes-vtk,johnkit/vtk-dev,demarle/VTK,demarle/VTK,berendkleinhaneveld/VTK,sgh/vtk,Wuteyan/VTK,SimVascular/VTK,keithroe/vtkoptix,Wuteyan/VTK,sumedhasingla/VTK,mspark93/VTK,keithroe/vtkoptix,demarle/VTK,daviddoria/PointGraphsPhase1,sgh/vtk,arnaudgelas/VTK,jeffbaumes/jeffbaumes-vtk,jmerkow/VTK,ashray/VTK-EVM