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| − | This example demonstrates how to convert an unstructured grid to a polydata. Currently nothing is done with the resulting polydata. If someone has a good data set that demonstrates the conversion, please let us know.
| + | = '''See [https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/DataSetSurfaceFilter DataSetSurfaceFilter] on the new [https://lorensen.github.io/VTKExamples/site/ VTKExamples website].''' = |
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| − | ==DataSetSurfaceFilter.cxx==
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| − | <source lang="cpp">
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| − | #include <vtkVersion.h>
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| − | #include <vtkSmartPointer.h>
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| − | #include <vtkPolyData.h>
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| − | #include <vtkUnstructuredGrid.h>
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| − | #include <vtkCellArray.h>
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| − | #include <vtkDataSetSurfaceFilter.h>
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| − | #include <vtkPointSource.h>
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| − | int main(int, char *[])
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| − | {
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| − | vtkSmartPointer<vtkUnstructuredGrid> unstructuredGrid =
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| − | vtkSmartPointer<vtkUnstructuredGrid>::New();
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| − | vtkSmartPointer<vtkDataSetSurfaceFilter> surfaceFilter =
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| − | vtkSmartPointer<vtkDataSetSurfaceFilter>::New();
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| − | #if VTK_MAJOR_VERSION <= 5
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| − | surfaceFilter->SetInput(unstructuredGrid);
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| − | #else
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| − | surfaceFilter->SetInputData(unstructuredGrid);
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| − | #endif
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| − | surfaceFilter->Update();
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| − |
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| − | vtkPolyData* polydata = surfaceFilter->GetOutput();
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| − | std::cout << "Output has " << polydata->GetNumberOfPoints() << " points." << std::endl;
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| − | return EXIT_SUCCESS;
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| − | }
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| − | </source>
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| − | {{VTKCMakeLists|{{SUBPAGENAME}}}}
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| − | Perform a Delaunay triangulation on a sphere. Show it in wireframe so one can see all of the internal edges. Then run the filter and show that the result is only the outer surface.
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| − | [[Category:VTKAddVisualization]]
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