[vtkusers] 'Incorrect' Geometry on Conversion to Polydata

[Ted Kord]

Hi

I converted a vtk StructuredData file to Polydata format. However, when I
load the result in Paraview, all I get is a red cube. Is there a filter I'm
supposed to use to get back my original image geometry?

What I actually want to do is obtain a .ply file from the .vtk file (by
saving the .vtp file as .ply). Is there a better way to do this?

Thanks

Theodore

==
The code I used to convert form vtk to polydata is:

int main(int, char *[])

{

 vtkSmartPointer<vtkStructuredPointsReader> reader =
vtkSmartPointer<vtkStructuredPointsReader>::New();

reader->SetFileName("test.vtk");

reader->Update();

 //create Structuredpoints

vtkSmartPointer<vtkStructuredPoints> structuredPoints = reader->GetOutput();


 vtkSmartPointer<vtkGeometryFilter> geometryFilter =
vtkSmartPointer<vtkGeometryFilter>::New();

geometryFilter->SetInput(structuredPoints);

geometryFilter->Update();

 vtkPolyData* polydata = geometryFilter->GetOutput();

 std::cout << "Output has " << polydata->GetNumberOfPoints() << "
points."<< std::endl;

 vtkSmartPointer<vtkXMLPolyDataWriter> writer =
vtkSmartPointer<vtkXMLPolyDataWriter>::New();

writer->SetFileName("test.vtp");

writer->SetInput(polydata);

writer->Write();

 return EXIT_SUCCESS;
}
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