[vtkusers] can't find function

[Mathieu Malaterre]

Mac,

   Have a look at the FAQ:

http://www.vtk.org/Wiki/VTK_FAQ#Forward_declaration_in_VTK_4.x

  This is exactly your problem ;)

HTH
Mathieu


> Hello dear list members!
> 
> I'm using an implicit modeller to generate a scalar field around
> a sort of stick figure I made (which is simply a collection of points and
> lines in a vtkPolyData object), and then using vtkContourFilter to
> generate an isosurface from that scalar field (which is, I believe,
> generated as vtkImageData.
> 
> I was inspired to do this by the hello.tcl example, and the little program
> I wrote works perfectly *in* tcl.  I need to port it over to c++, and it's
> there that I'm running into problems.
> 
> Here is the relevent c++ code:  (awData is the stick figure)
> 
> 	vtkImplicitModeller * imp = vtkImplicitModeller::New();
> 		imp->SetInput( awData );
> 		imp->SetSampleDimensions( 80, 80, 256 );  //resolution
> 		imp->SetMaximumDistance( 4 );  //perimiter of calculation
> 		imp->SetModelBounds( -15, 20, -5, 5, -1.0, 50.0 );
> 
> 	vtkContourFilter * contour = vtkContourFilter::New();
> 		contour->SetInput( imp->GetOutput() );
> 		contour->SetValue( 0, 1.0 );
> 	vtkPolyDataMapper * impMapper = vtkPolyDataMapper::New();
> 		impMapper->SetInput( contour->GetOutput() );
> 		impMapper->ScalarVisibilityOff();
> 
> However!  I get this funky compile-time error:
> 
> /imports/archive/u1/uaf/cowell/airway/airway.cxx:113: no matching function
> for
>    call to `vtkContourFilter::SetInput(vtkImageData*)'
> /imports/projects/UAFINSP/vtk-src/Filtering/vtkDataSetToPolyDataFilter.h:44:
> candidates
>    are: virtual void vtkDataSetToPolyDataFilter::SetInput(vtkDataSet*)
> 
> Am I just setting up the pipeline wrong?  It works fine in tcl:
> 
> vtkContourFilter contour
> 	contour SetInput [imp GetOutput]
> 
> anyway, your help is desperately needed and appreciated!
> thanks!
> 
> Mac Cowell
> Summer Intern
> Arctic Region Supercomputing Center
> Fairbanks, AK
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