[vtkusers] Using vtkTransformPolyDataFilter Locks Up Application

[zmanvortex]

Here is my pipeline, I am feeding it 2D vtkImageData that I created manually:

//Create the contours from 2D image data
vtkSmartPointer<vtkMarchingSquares> contours =
vtkSmartPointer<vtkMarchingSquares>::New();
contours->SetInputConnection(imgdat->GetOutputPort());
contours->GenerateValues(50, 83.0, 133.0);

//Clean the polydata, don't know if this is needed but used by habit
vtkSmartPointer<vtkCleanPolyData> cpd =
vtkSmartPointer<vtkCleanPolyData>::New();
cpd->SetInputConnection(contours->GetOutputPort());

//Create longer polylines so Delaunay is faster?
vtkSmartPointer<vtkStripper> stripper = vtkSmartPointer<vtkStripper>::New();
stripper->SetInputConnection(cpd->GetOutputPort());
stripper->SetMaximumLength(10000);

//Fill in between the contours
vtkSmartPointer<vtkDelaunay2D> dnly = vtkSmartPointer<vtkDelaunay2D>::New();
dnly->SetInputConnection(stripper->GetOutputPort());
dnly->SetAlpha(1.0);

//I only want polys. Get rid of junk lines and verts
vtkSmartPointer<vtkTriangleFilter> trifil =
vtkSmartPointer<vtkTriangleFilter>::New();
trifil->SetInputConnection(dnly->GetOutputPort());
trifil->PassLinesOff();
trifil->PassVertsOff();

//Warp the data slightly to show contour transitions
vtkSmartPointer<vtkWarpScalar> warp = vtkSmartPointer<vtkWarpScalar>::New();
warp->SetInputConnection(trifil->GetOutputPort());
warp->SetScaleFactor(0.05);

//Create a smoother mesh
vtkSmartPointer<vtkSmoothPolyDataFilter> smooth =
vtkSmartPointer<vtkSmoothPolyDataFilter>::New();
smooth->SetInputConnection(warp->GetOutputPort());
smooth->SetFeatureAngle(120.0);

//Create normals for shading
vtkSmartPointer<vtkPolyDataNormals> normals =
vtkSmartPointer<vtkPolyDataNormals>::New();
normals->SetInputConnection(smooth->GetOutputPort());
normals->SetFeatureAngle(45.0);

//Move points to new location
vtkSmartPointer<vtkTransformPolyDataFilter> tf =
vtkSmartPointer<vtkTransformPolyDataFilter>::New();
tf->SetInputConnection(normals->GetOutputPort());
vtkSmartPointer<vtkTransform> xfm = vtkSmartPointer<vtkTransform>::New();
xfm->Translate(4744686.4296517679, -529434.90776521398, 4197132.3454494504);
tf->SetTransform(xfm);


vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(tf->GetOutputPort());
mapper->SetLookupTable(lookuptable);
mapper->SetScalarRange(0, 255);
mapper->SetColorModeToMapScalars();
mapper->InterpolateScalarsBeforeMappingOn();

vtkActor* actor = vtkActor::New();
actor->SetMapper(mapper);
actor->GetProperty()->SetSpecular(.1);
actor->GetProperty()->SetSpecularPower(10);
actor->GetProperty()->SetAmbient(.5);
actor->GetProperty()->ShadingOn();

If I change "mapper->SetInputConnection(tf->GetOutputPort());" to
"mapper->SetInputConnection(normals->GetOutputPort());" then the application
doesn't lock up
and the data is displayed, but the points aren't transformed to where I need
them. I am using VTK 6.1.

Thanks.



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