[vtkusers] SetScalars of vtkDataSetAttribute in vtk4.0

[Oliver Fleig]

On Monday 31 December 2001 14:25, zhangzhijun wrote:
>  I have a program using the following code
> vtkstructuredpoints *points=vtkStructuredPoints::New();
> vtkScalars *s =vtkScalars::New();
>  points->GetPointData()->SetScalars(s);
>
> this works well in vtk3.2 but in vtk4.0 the setscalars method of the
> vtkDataSetAttribute
> is redefined and the parameter of this function must be vtkDataArray, so
> the former code will
> not right compiled. How to change this?

Hello!
I hope this example code helps.

 vtkFloatArray* newScalars = vtkFloatArray::New();
  newScalars->SetNumberOfComponents(1);
  newScalars->SetNumberOfTuples(numPts);
  newScalars->SetName("TRE Scalar");
  for (vtkIdType id=0; id<numPts; id++) {
    float TRE;
    TRE= this->TargetRegistration->GetTREatPoint(input->GetPoint(id));
    newScalars->SetComponent(id,0,TRE);
  }

 output->GetPointData()->SetScalars(newScalars);	


Somewhere in the CVS tree there is an Upgrade.zip, containing some perl 
scripts to help upgrade old sources (not sure if the script addresses this 
particular problem).


Cheers

Oliver




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Oliver Fleig - Laboratoire IDM (fka SIM)
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