[vtkusers] unusual SetInput() and GetOutput() methods

[camilo.jimenez at spymac.com]

Hi everybody

I've been trying  to translate the expCos.tcl example to Cxx, but I got errs 
in this part:

TCL>

vtkTransformPolyDataFilter transF
   transF SetInput [plane GetOutput]
   transF SetTransform transform
vtkProgrammableFilter besselF
   besselF SetInput [transF GetOutput]
   besselF SetExecuteMethod bessel


I translated this as


vtkTransformPolyDataFilter *transF=vtkTransformPolyDataFilter::New();
  transF->SetInput(plane->GetOutput());
  transF->SetTransform(transform);

vtkProgrammableFilter *besselF=vtkProgrammableFilter::New();
   besselF->SetInput(transF->GetOutput());
   besselF->SetExecuteMethod(bessel);


then, in making, I get this err

Building object file 3d.o...
3d.cc: In function `int main()':
3d.cc:25: no matching function for call to `vtkProgrammableFilter::SetInput(
   vtkPolyData*)'
/usr/local/include/vtk/vtkDataSetToDataSetFilter.h:62: candidates are: void 
   vtkDataSetToDataSetFilter::SetInput(vtkDataSet*)
3d.cc:29: no matching function for call to `vtkWarpScalar::SetInput(
   vtkPolyData*)'
/usr/local/include/vtk/vtkPointSetToPointSetFilter.h:57: candidates are: void 
   vtkPointSetToPointSetFilter::SetInput(vtkPointSet*)
make: *** [3d.o] Error 1


I've included these headers:
#include "vtkPlaneSource.h"
#include "vtkTransform.h"
#include "vtkTransformPolyDataFilter.h"
#include "vtkProgrammableFilter.h"
#include "vtkWarpScalar.h"
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"

Does somebody knows what is the problem??
ThanX


LinX