[vtkusers] Problem with VolumeMapper & StructuredPointsReader

[Lisa Avila]

Hello Hari,

No - including vtkStructuredPointsReader.h is not enough. In general, if 
you use a Get method that returns an object (in this case you used 
GetOutput which returned a vtkStructuredPoints) you should include the 
header file for the object returned.

Lisa

At 09:13 AM 1/29/2004, Hari Sundar wrote:
>Hi Amy,
>
>It works now, but I am a bit confused. Shouldn't including
>vtkStructuredPointsReader be enough ? Doesn't it include
>vtkStructuredPoints ? This particular case is simple enough, but what
>would be the general rule for including headers ?
>
>thanks,
>-Hari
>
>On Thu, 29 Jan 2004, Amy Henderson wrote:
>
> > Hi Hari,
> >
> > Did you include the header file for
> > vtkStructuredPoints?  vtkStructuredPoints is a subclass of vtkImageData,
> > but your code will need to have vtkStructuredPoints.h included to know 
> that.
> >
> > - Amy
> >
> > At 07:53 PM 1/28/2004 -0500, Hari Sundar wrote:
> > >Hi,
> > >
> > >I was trying to do something as simple as converting one of the Python/Tcl
> > >examples into Cxx ... SimpleTextureMape2D.py ... the python example works
> > >...
> > >
> > >this is how my Cxx code (relevant part) looks ...
> > >
> > >vtkStructuredPointsReader *reader = vtkStructuredPointsReader::New();
> > >reader->SetFileName("ironProt.vtk");
> > >
> > >vtkVolumeTextureMapper2D *volumeMapper = vtkVolumeTextureMapper2D::New();
> > >volumeMapper->SetInput(reader->GetOutput());
> > >
> > >when I compile this .. I get this error ,,,
> > >
> > >simple.cxx:104: no matching function for call to
> > >`vtkVolumeTextureMapper2D::
> > >    SetInput(vtkStructuredPoints*)'
> > >/usr/local/src/VTK-4.2/Rendering/vtkVolumeMapper.h:59: candidates are:
> > >virtual
> > >    void vtkVolumeMapper::SetInput(vtkImageData*)
> > >
> > >what did I do wrong ???
> > >
> > >thanks,
> > >-Hari
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