added write method
added write method

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