bug: Fixed a extent problem with sample rates > 1
bug: Fixed a extent problem with sample rates > 1

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