[vtkusers] Help with vtkDataSetSurfaceFilter

Adriano Gagliardi agagliardi at ara.co.uk
Thu May 27 05:38:03 EDT 2010


Dear All,

I'm trying to convert an unstructured surface mesh to poly data format with
vtkDataSetSurfaceFilter, but I'm getting the following error:

vtkStreamingDemandDrivenPipeline (0x1940cec0): Input port 0 of algorithm
vtkDataSetSurfaceFilter(0x19460f70) has 0 connections but is not optional

The code is as below:

for ( int j = 0; j != input->GetNumberOfBlocks(); ++j ) {
	vtkUnstructuredGrid* surf =
vtkUnstructuredGrid::SafeDownCast(input->GetBlock(j));
	vtkDataSetSurfaceFilter* polySurf = vtkDataSetSurfaceFilter::New();
	polySurf->SetInput(surf);
	polySurf->Update();
	input->SetBlock(j, polySurf->GetOutput());
	polySurf->Delete();
}

Cheers,

Adriano

p.s. I notice there is a problem with the VTK Examples website, otherwise
I'd have had a look there first.

===================================

Adriano Gagliardi MEng PhD
Business Sector Leader
Computational Aerodynamics
Aircraft Research Association Ltd.
Manton Lane
Bedford

Tel: 01234 32 4644
E-mail: agagliardi at ara.co.uk
Url: www.ara.co.uk 


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