[vtkusers] vtkstreamtracer on a surface

[Bill Lorensen]

I need fully compilable program.

On Mar 6, 2018 1:50 PM, "ZACK" <chihebz at hotmail.com> wrote:

> Hi Bill,
>
> Here's the code that is working in previous 5.0 vtk version
>
>         vtkSmartPointer<vtkGeometryFilter> extract =
> vtkSmartPointer<vtkGeometryFilter>::New();
>         extract->SetInputConnection(m_pUnstructuredGridModel->
> GetOutputPort());
>         extract->Modified();
>         InitializePolyDataMapper(m_pModelPolyDataMapper);
>
> m_pModelPolyDataMapper->SetInputConnection(extract->GetOutputPort());
>         PreparePolyDataMapper(m_pModelPolyDataMapper, pColours,
> m_CurrentMinValue,
>
> m_CurrentMaxValue);
>         m_pCurrentFringeActor->SetMapper(m_pModelPolyDataMapper);
>         m_pCurrentFringeActor->SetDragable(true);
>        m_pCurrentFringeActor->VisibilityOn();
>         m_prenderer->AddViewProp(m_pCurrentFringeActor);// m_prenderer is
> vtkopenglrenderer
>
> The piece of code above does render fine, but when I try to add the code
> below for wireframe the render windows becomes empty
>
>         vtkSmartPointer<vtkFeatureEdges> edges_extractor =
> vtkSmartPointer<vtkFeatureEdges>::New();
>         edges_extractor->SetInputConnection(extract->GetOutputPort());
>         edges_extractor->ColoringOff();
>         edges_extractor->BoundaryEdgesOn();
>         edges_extractor->ManifoldEdgesOn();
>         edges_extractor->NonManifoldEdgesOn();
>         edges_extractor->FeatureEdgesOn();
>         edges_extractor->Modified();
>
>         vtkSmartPointer<vtkPolyDataMapper> edges_mapper =
>  vtkSmartPointer<vtkPolyDataMapper>::New();
>
>         edges_mapper->SetInputConnection(edges_
> extractor->GetOutputPort());
>         edges_mapper->SetResolveCoincidentTopologyPolygonOffsetParameters(1,
> 1);
>         edges_mapper->SetResolveCoincidentTopologyToPolygonOffset();
>         edges_mapper->ScalarVisibilityOff(); // coloring edges
>
>         edges_mapper->Modified();
>
>         vtkActor*  edges_actor = vtkActor::New();
>         edges_actor->SetMapper(edges_mapper);
>         edges_actor->GetProperty()->SetDiffuseColor(0, 0, 0);
>         edges_actor->GetProperty()->SetLineWidth(m_iEdgeLineWidth);
>         edges_actor->Modified();
>        edges_actor->VisibilityOn();
>         m_prenderer->AddViewProp(edges_actor);// m_prenderer is
> vtkopenglrenderer
>
> Note: If I render the wireframe actor (edges_actor) by itself it does work
> fine
>
> Thanks
>
>
>
>
>
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