# ExportPolyDataScene

VTKExamples/Cxx/IO/ExportPolyDataScene

Danger

This example is a work in progress.

The example exports the vtkPolyData used by vtkActor's. The example stores the vtkMapper, vtkCamera and vtkProperty parameters as vtkFieledData in the vtkActor's vtkPolyData.

### Code

ExportPolyDataScene.cxx

    #include <vtkSmartPointer.h>
    #include <vtkMultiBlockDataSet.h>
    #include <vtkActorCollection.h>
    #include <vtkXMLMultiBlockDataWriter.h>
    #include <vtkActorCollection.h>
    #include <vtkPolyData.h>

    #include <vtkActor.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkProperty.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkRenderer.h>
    #include <vtkCamera.h>

    #include <vtkFieldData.h>
    #include <vtkDoubleArray.h>
    #include <vtkStringArray.h>
    #include <vtkIntArray.h>
    #include <vtkIdTypeArray.h>
    #include <vtkLookupTable.h>
    #include <vtkScalarsToColors.h>

    #include <vtksys/SystemTools.hxx>
    #include <vtkNamedColors.h>

    #include <vtkBYUReader.h>
    #include <vtkOBJReader.h>
    #include <vtkPLYReader.h>
    #include <vtkPolyDataReader.h>
    #include <vtkSTLReader.h>
    #include <vtkXMLPolyDataReader.h>
    #include <vtkSphereSource.h>

    namespace
    {
    vtkSmartPointer<vtkPolyData> ReadPolyData(const char *fileName);
    void ExportMultiBlockScene(vtkRenderer *renderer, std::string fileName, bool binary = false);
    void SaveCameraAsFieldData(std::string, vtkCamera *, vtkPolyData *);
    void SavePropertyAsFieldData(std::string, vtkProperty *, vtkPolyData *);
    void SaveMapperAsFieldData(std::string, vtkPolyDataMapper *, vtkPolyData *);
    void SaveLookupTableAsFieldData(std::string, vtkScalarsToColors *, vtkPolyData *);
    }

    int main (int argc, char *argv[])
    {
      vtkSmartPointer<vtkPolyData> polyData = ReadPolyData(argc > 1 ? argv[1] : "");;

      // Visualize
      vtkSmartPointer<vtkNamedColors> colors =
        vtkSmartPointer<vtkNamedColors>::New();

      vtkSmartPointer<vtkPolyDataMapper> mapper =
        vtkSmartPointer<vtkPolyDataMapper>::New();
      mapper->SetInputData(polyData);

      vtkSmartPointer<vtkProperty> backProperty =
        vtkSmartPointer<vtkProperty>::New();
      backProperty->SetColor(colors->GetColor3d("peacock").GetData());

      vtkSmartPointer<vtkActor> actor =
        vtkSmartPointer<vtkActor>::New();
      actor->SetMapper(mapper);
      actor->SetBackfaceProperty(backProperty);
      actor->GetProperty()->SetDiffuseColor(colors->GetColor3d("Crimson").GetData());
      actor->GetProperty()->SetSpecular(.6);
      actor->GetProperty()->SetSpecularPower(30);
      actor->GetProperty()->EdgeVisibilityOn();
      actor->GetProperty()->SetEdgeColor(colors->GetColor3d("Banana").GetData());
      actor->GetProperty()->FrontfaceCullingOn();
    ;
      vtkSmartPointer<vtkRenderer> renderer =
        vtkSmartPointer<vtkRenderer>::New();
      vtkSmartPointer<vtkRenderWindow> renderWindow =
        vtkSmartPointer<vtkRenderWindow>::New();
      renderWindow->AddRenderer(renderer);
      vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
        vtkSmartPointer<vtkRenderWindowInteractor>::New();
      renderWindowInteractor->SetRenderWindow(renderWindow);

      renderer->AddActor(actor);
      renderer->ResetCamera();
      renderer->GetActiveCamera()->Azimuth(30);
      renderer->GetActiveCamera()->Elevation(30);
      renderer->GetActiveCamera()->Yaw(10);
      renderer->SetBackground(colors->GetColor3d("Silver").GetData());

      renderWindow->SetSize(640, 480);
      renderWindow->Render();
      renderWindowInteractor->Start();

      std::string prefix;
      if (argc < 2)
      {
        prefix = "Sphere";
      }
      else
      {
        prefix = vtksys::SystemTools::GetFilenameName(argv[1]);
      }
      ExportMultiBlockScene (renderer.GetPointer(), prefix);

      return EXIT_SUCCESS;
    }

    namespace
    {
    void ExportMultiBlockScene (vtkRenderer *renderer,
                                std::string fileName,
                                bool binary)
    {
      // Iterate over all actors in the renderer
      vtkSmartPointer<vtkActorCollection> actors =
        vtkSmartPointer<vtkActorCollection>::New();
      actors = renderer->GetActors();
      std::cout << "There are " << actors->GetNumberOfItems() << " actors" << std::endl;
      actors->InitTraversal();
      // Initialize dataset to write
      vtkSmartPointer<vtkMultiBlockDataSet> multiBlockDataset =
        vtkSmartPointer<vtkMultiBlockDataSet>::New();
      multiBlockDataset->SetNumberOfBlocks(actors->GetNumberOfItems());

      for (vtkIdType a = 0; a < actors->GetNumberOfItems(); ++a)
      {
        vtkActor * actor = actors->GetNextActor();

        vtkPolyData *pd =
          vtkPolyData::SafeDownCast(actor->GetMapper()->GetInput());

        // Set metadata for block
        multiBlockDataset->SetBlock(a, pd);

        // Save Camera
        SaveCameraAsFieldData("Camera",
                              renderer->GetActiveCamera(),
                              pd);

        // Save Camera
        SavePropertyAsFieldData("Property",
                                actor->GetProperty(),
                                pd);
        SavePropertyAsFieldData("BackfaceProperty",
                                actor->GetBackfaceProperty(),
                                pd);
        // Save Mapper
        SaveMapperAsFieldData("PolyDataMapper",
                              vtkPolyDataMapper::SafeDownCast(actor->GetMapper()),
                              pd);
      }

      // Write multiblock dataset to disk
      vtkSmartPointer<vtkXMLMultiBlockDataWriter> writer =
        vtkSmartPointer<vtkXMLMultiBlockDataWriter>::New();
      if (binary)
      {
      writer->SetDataModeToBinary();
      writer->SetCompressorTypeToZLib();
      }
      else
      {
      writer->SetDataModeToAscii();
      }
      writer->SetInputData(multiBlockDataset);
      writer->SetFileName(fileName.c_str());
      writer->Update();
      return;
    }
    void SaveCameraAsFieldData(std::string arrayPrefix,
                               vtkCamera *camera,
                               vtkPolyData *pd)
    {
      vtkSmartPointer<vtkDoubleArray> viewUp =
        vtkSmartPointer<vtkDoubleArray>::New();
      viewUp->SetNumberOfComponents(3);
      viewUp->SetNumberOfTuples(1);
      viewUp->SetTuple(0, camera->GetViewUp());
      viewUp->SetName(std::string(arrayPrefix + ":" + "ViewUp").c_str());
      pd->GetFieldData()->AddArray(viewUp);

      vtkSmartPointer<vtkDoubleArray> position =
        vtkSmartPointer<vtkDoubleArray>::New();
      position->SetNumberOfComponents(3);
      position->SetNumberOfTuples(1);
      position->SetTuple(0, camera->GetPosition());
      position->SetName(std::string(arrayPrefix + ":" + "Position").c_str());
      pd->GetFieldData()->AddArray(position);

      vtkSmartPointer<vtkDoubleArray> focalPoint =
        vtkSmartPointer<vtkDoubleArray>::New();
      focalPoint->SetNumberOfComponents(3);
      focalPoint->SetNumberOfTuples(1);
      focalPoint->SetTuple(0, camera->GetFocalPoint());
      focalPoint->SetName(std::string(arrayPrefix + ":" + "FocalPoint").c_str());
      pd->GetFieldData()->AddArray(focalPoint);

      vtkSmartPointer<vtkDoubleArray> clippingRange =
        vtkSmartPointer<vtkDoubleArray>::New();
      clippingRange->SetNumberOfComponents(2);
      clippingRange->SetNumberOfTuples(1);
      clippingRange->SetTuple(0, camera->GetClippingRange());
      clippingRange->SetName(std::string(arrayPrefix + ":" + "ClippingRange").c_str());
      pd->GetFieldData()->AddArray(clippingRange);
    }
    void SavePropertyAsFieldData(std::string arrayPrefix,
                                 vtkProperty * property,
                                 vtkPolyData *pd)
    {
      if (property)
      {
        vtkSmartPointer<vtkDoubleArray> ambient =
          vtkSmartPointer<vtkDoubleArray>::New();
        ambient->SetNumberOfComponents(1);
        ambient->SetNumberOfTuples(1);
        ambient->SetValue(0, property->GetAmbient());
        ambient->SetName(std::string(arrayPrefix + ":" + "Ambient").c_str());
        pd->GetFieldData()->AddArray(ambient);

        vtkSmartPointer<vtkDoubleArray> ambientColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        ambientColor->SetNumberOfComponents(3);
        ambientColor->SetNumberOfTuples(1);
        ambientColor->SetTuple(0, property->GetAmbientColor());
        ambientColor->SetName(std::string(arrayPrefix + ":" + "AmbientColor").c_str());
        pd->GetFieldData()->AddArray(ambientColor);

        vtkSmartPointer<vtkDoubleArray> diffuse =
          vtkSmartPointer<vtkDoubleArray>::New();
        diffuse->SetNumberOfComponents(1);
        diffuse->SetNumberOfTuples(1);
        diffuse->SetValue(0, property->GetDiffuse());
        diffuse->SetName(std::string(arrayPrefix + ":" + "Diffuse").c_str());
        pd->GetFieldData()->AddArray(diffuse);

        vtkSmartPointer<vtkDoubleArray> diffuseColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        diffuseColor->SetNumberOfComponents(3);
        diffuseColor->SetNumberOfTuples(1);
        diffuseColor->SetTuple(0, property->GetDiffuseColor());
        diffuseColor->SetName(std::string(arrayPrefix + ":" + "DiffuseColor").c_str());
        pd->GetFieldData()->AddArray(diffuseColor);

        vtkSmartPointer<vtkDoubleArray> EdgeColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        EdgeColor->SetNumberOfComponents(3);
        EdgeColor->SetNumberOfTuples(1);
        EdgeColor->SetTuple(0, property->GetEdgeColor());
        EdgeColor->SetName(std::string(arrayPrefix + ":" + "EdgeColor").c_str());
        pd->GetFieldData()->AddArray(EdgeColor);

        vtkSmartPointer<vtkIntArray> EdgeVisibility =
          vtkSmartPointer<vtkIntArray>::New();
        EdgeVisibility->SetNumberOfComponents(1);
        EdgeVisibility->SetNumberOfTuples(1);
        EdgeVisibility->SetValue(0, property->GetEdgeVisibility());
        EdgeVisibility->SetName(std::string(arrayPrefix + ":" + "EdgeVisibility").c_str());
        pd->GetFieldData()->AddArray(EdgeVisibility);

        vtkSmartPointer<vtkDoubleArray> VertexColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        VertexColor->SetNumberOfComponents(3);
        VertexColor->SetNumberOfTuples(1);
        VertexColor->SetTuple(0, property->GetVertexColor());
        VertexColor->SetName(std::string(arrayPrefix + ":" + "VertexColor").c_str());
        pd->GetFieldData()->AddArray(VertexColor);

        vtkSmartPointer<vtkIntArray> VertexVisibility =
          vtkSmartPointer<vtkIntArray>::New();
        VertexVisibility->SetNumberOfComponents(1);
        VertexVisibility->SetNumberOfTuples(1);
        VertexVisibility->SetValue(0, property->GetVertexVisibility());
        VertexVisibility->SetName(std::string(arrayPrefix + ":" + "VertexVisibility").c_str());
        pd->GetFieldData()->AddArray(VertexVisibility);

        vtkSmartPointer<vtkIntArray> Interpolation =
          vtkSmartPointer<vtkIntArray>::New();
        Interpolation->SetNumberOfComponents(1);
        Interpolation->SetNumberOfTuples(1);
        Interpolation->SetValue(0, property->GetInterpolation());
        Interpolation->SetName(std::string(arrayPrefix + ":" + "Interpolation").c_str());
        pd->GetFieldData()->AddArray(Interpolation);

        vtkSmartPointer<vtkDoubleArray> Opacity =
          vtkSmartPointer<vtkDoubleArray>::New();
        Opacity->SetNumberOfComponents(1);
        Opacity->SetNumberOfTuples(1);
        Opacity->SetValue(0, property->GetOpacity());
        Opacity->SetName(std::string(arrayPrefix + ":" + "Opacity").c_str());
        pd->GetFieldData()->AddArray(Opacity);

        vtkSmartPointer<vtkIntArray> Representation =
          vtkSmartPointer<vtkIntArray>::New();
        Representation->SetNumberOfComponents(1);
        Representation->SetNumberOfTuples(1);
        Representation->SetValue(0, property->GetRepresentation());
        Representation->SetName(std::string(arrayPrefix + ":" + "Representation").c_str());
        pd->GetFieldData()->AddArray(Representation);

        vtkSmartPointer<vtkDoubleArray> Specular =
          vtkSmartPointer<vtkDoubleArray>::New();
        Specular->SetNumberOfComponents(1);
        Specular->SetNumberOfTuples(1);
        Specular->SetValue(0, property->GetSpecular());
        Specular->SetName(std::string(arrayPrefix + ":" + "Specular").c_str());
        pd->GetFieldData()->AddArray(Specular);

        vtkSmartPointer<vtkDoubleArray> SpecularColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        SpecularColor->SetNumberOfComponents(3);
        SpecularColor->SetNumberOfTuples(1);
        SpecularColor->SetTuple(0, property->GetSpecularColor());
        SpecularColor->SetName(std::string(arrayPrefix + ":" + "SpecularColor").c_str());
        pd->GetFieldData()->AddArray(SpecularColor);

        vtkSmartPointer<vtkIntArray> BackfaceCulling =
          vtkSmartPointer<vtkIntArray>::New();
        BackfaceCulling->SetNumberOfComponents(1);
        BackfaceCulling->SetNumberOfTuples(1);
        BackfaceCulling->SetValue(0, property->GetBackfaceCulling());
        BackfaceCulling->SetName(std::string(arrayPrefix + ":" + "BackfaceCulling").c_str());
        pd->GetFieldData()->AddArray(BackfaceCulling);

        vtkSmartPointer<vtkIntArray> FrontfaceCulling =
          vtkSmartPointer<vtkIntArray>::New();
        FrontfaceCulling->SetNumberOfComponents(1);
        FrontfaceCulling->SetNumberOfTuples(1);
        FrontfaceCulling->SetValue(0, property->GetFrontfaceCulling());
        FrontfaceCulling->SetName(std::string(arrayPrefix + ":" + "FrontfaceCulling").c_str());
        pd->GetFieldData()->AddArray(FrontfaceCulling);

        vtkSmartPointer<vtkDoubleArray> PointSize =
          vtkSmartPointer<vtkDoubleArray>::New();
        PointSize->SetNumberOfComponents(1);
        PointSize->SetNumberOfTuples(1);
        PointSize->SetValue(0, property->GetPointSize());
        PointSize->SetName(std::string(arrayPrefix + ":" + "PointSize").c_str());
        pd->GetFieldData()->AddArray(PointSize);

        vtkSmartPointer<vtkDoubleArray> LineWidth =
          vtkSmartPointer<vtkDoubleArray>::New();
        LineWidth->SetNumberOfComponents(1);
        LineWidth->SetNumberOfTuples(1);
        LineWidth->SetValue(0, property->GetLineWidth());
        LineWidth->SetName(std::string(arrayPrefix + ":" + "LineWidth").c_str());
        pd->GetFieldData()->AddArray(LineWidth);

        vtkSmartPointer<vtkIntArray> LineStipplePattern =
          vtkSmartPointer<vtkIntArray>::New();
        LineStipplePattern->SetNumberOfComponents(1);
        LineStipplePattern->SetNumberOfTuples(1);
        LineStipplePattern->SetValue(0, property->GetLineStipplePattern());
        LineStipplePattern->SetName(std::string(arrayPrefix + ":" + "LineStipplePattern").c_str());
        pd->GetFieldData()->AddArray(LineStipplePattern);

        vtkSmartPointer<vtkIntArray> LineStippleRepeatFactor =
          vtkSmartPointer<vtkIntArray>::New();
        LineStippleRepeatFactor->SetNumberOfComponents(1);
        LineStippleRepeatFactor->SetNumberOfTuples(1);
        LineStippleRepeatFactor->SetValue(0, property->GetLineStippleRepeatFactor());
        LineStippleRepeatFactor->SetName(std::string(arrayPrefix + ":" + "LineStippleRepeatFactor").c_str());
        pd->GetFieldData()->AddArray(LineStippleRepeatFactor);

        vtkSmartPointer<vtkIntArray> Lighting =
          vtkSmartPointer<vtkIntArray>::New();
        Lighting->SetNumberOfComponents(1);
        Lighting->SetNumberOfTuples(1);
        Lighting->SetValue(0, property->GetLighting());
        Lighting->SetName(std::string(arrayPrefix + ":" + "Lighting").c_str());
        pd->GetFieldData()->AddArray(Lighting);

        vtkSmartPointer<vtkIntArray> RenderPointsAsSpheres =
          vtkSmartPointer<vtkIntArray>::New();
        RenderPointsAsSpheres->SetNumberOfComponents(1);
        RenderPointsAsSpheres->SetNumberOfTuples(1);
        RenderPointsAsSpheres->SetValue(0, property->GetRenderPointsAsSpheres());
        RenderPointsAsSpheres->SetName(std::string(arrayPrefix + ":" + "RenderPointsAsSpheres").c_str());
        pd->GetFieldData()->AddArray(RenderPointsAsSpheres);

        vtkSmartPointer<vtkIntArray> RenderLinesAsTubes =
          vtkSmartPointer<vtkIntArray>::New();
        RenderLinesAsTubes->SetNumberOfComponents(1);
        RenderLinesAsTubes->SetNumberOfTuples(1);
        RenderLinesAsTubes->SetValue(0, property->GetRenderLinesAsTubes());
        RenderLinesAsTubes->SetName(std::string(arrayPrefix + ":" + "RenderLinesAsTubes").c_str());
        pd->GetFieldData()->AddArray(RenderLinesAsTubes);

        vtkSmartPointer<vtkIntArray> Shading =
          vtkSmartPointer<vtkIntArray>::New();
        Shading->SetNumberOfComponents(1);
        Shading->SetNumberOfTuples(1);
        Shading->SetValue(0, property->GetShading());
        Shading->SetName(std::string(arrayPrefix + ":" + "Shading").c_str());
        pd->GetFieldData()->AddArray(Shading);

        if (property->GetMaterialName())
        {
          vtkSmartPointer<vtkStringArray> MaterialName =
            vtkSmartPointer<vtkStringArray>::New();
          MaterialName->SetNumberOfComponents(1);
          MaterialName->SetNumberOfTuples(1);
          MaterialName->SetValue(0, property->GetMaterialName());
          MaterialName->SetName(std::string(arrayPrefix + ":" + "MaterialName").c_str());
          pd->GetFieldData()->AddArray(MaterialName);
        }
      }
    }
    void SaveMapperAsFieldData(std::string arrayPrefix,
                               vtkPolyDataMapper *mapper,
                               vtkPolyData *pd)
    {
      if (mapper->GetLookupTable())
      {
        vtkScalarsToColors *lut = mapper->GetLookupTable();
        vtkSmartPointer<vtkDoubleArray> Alpha =
          vtkSmartPointer<vtkDoubleArray>::New();
        Alpha->SetNumberOfComponents(1);
        Alpha->SetNumberOfTuples(1);
        Alpha->SetValue(0, lut->GetAlpha());
        Alpha->SetName(std::string(arrayPrefix + ":LookupTable:" + "Alpha").c_str());
        pd->GetFieldData()->AddArray(Alpha);

        vtkSmartPointer<vtkDoubleArray> VectorMode =
          vtkSmartPointer<vtkDoubleArray>::New();
        VectorMode->SetNumberOfComponents(1);
        VectorMode->SetNumberOfTuples(1);
        VectorMode->SetValue(0, lut->GetVectorMode());
        VectorMode->SetName(std::string(arrayPrefix + ":LookupTable:" + "VectorMode").c_str());
        pd->GetFieldData()->AddArray(VectorMode);

        vtkSmartPointer<vtkDoubleArray> VectorComponent =
          vtkSmartPointer<vtkDoubleArray>::New();
        VectorComponent->SetNumberOfComponents(1);
        VectorComponent->SetNumberOfTuples(1);
        VectorComponent->SetValue(0, lut->GetVectorComponent());
        VectorComponent->SetName(std::string(arrayPrefix + ":LookupTable:" + "VectorComponent").c_str());
        pd->GetFieldData()->AddArray(VectorComponent);

        vtkSmartPointer<vtkDoubleArray> VectorSize =
          vtkSmartPointer<vtkDoubleArray>::New();
        VectorSize->SetNumberOfComponents(1);
        VectorSize->SetNumberOfTuples(1);
        VectorSize->SetValue(0, lut->GetVectorSize());
        VectorSize->SetName(std::string(arrayPrefix + ":LookupTable:" + "VectorSize").c_str());
        pd->GetFieldData()->AddArray(VectorSize);

        vtkSmartPointer<vtkIntArray> IndexedLookup =
          vtkSmartPointer<vtkIntArray>::New();
        IndexedLookup->SetNumberOfComponents(1);
        IndexedLookup->SetNumberOfTuples(1);
        IndexedLookup->SetValue(0, lut->GetIndexedLookup());
        IndexedLookup->SetName(std::string(arrayPrefix + ":LookupTable:" + "IndexedLookup").c_str());
        pd->GetFieldData()->AddArray(IndexedLookup);

        vtkSmartPointer<vtkDoubleArray> TableRange =
          vtkSmartPointer<vtkDoubleArray>::New();
        TableRange->SetNumberOfComponents(2);
        TableRange->SetNumberOfTuples(1);
        TableRange->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetTableRange());
        TableRange->SetName(std::string(arrayPrefix + ":LookupTable:" + "TableRange").c_str());
        pd->GetFieldData()->AddArray(TableRange);

        vtkSmartPointer<vtkIntArray> Scale =
          vtkSmartPointer<vtkIntArray>::New();
        Scale->SetNumberOfComponents(1);
        Scale->SetNumberOfTuples(1);
        Scale->SetValue(0, vtkLookupTable::SafeDownCast(lut)->GetScale());
        Scale->SetName(std::string(arrayPrefix + ":LookupTable:" + "Scale").c_str());
        pd->GetFieldData()->AddArray(Scale);

        vtkSmartPointer<vtkDoubleArray> HueRange =
          vtkSmartPointer<vtkDoubleArray>::New();
        HueRange->SetNumberOfComponents(2);
        HueRange->SetNumberOfTuples(1);
        HueRange->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetHueRange());
        HueRange->SetName(std::string(arrayPrefix + ":LookupTable:" + "HueRange").c_str());
        pd->GetFieldData()->AddArray(HueRange);

        vtkSmartPointer<vtkDoubleArray> SaturationRange =
          vtkSmartPointer<vtkDoubleArray>::New();
        SaturationRange->SetNumberOfComponents(2);
        SaturationRange->SetNumberOfTuples(1);
        SaturationRange->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetSaturationRange());
        SaturationRange->SetName(std::string(arrayPrefix + ":LookupTable:" + "SaturationRange").c_str());
        pd->GetFieldData()->AddArray(SaturationRange);

        vtkSmartPointer<vtkDoubleArray> ValueRange =
          vtkSmartPointer<vtkDoubleArray>::New();
        ValueRange->SetNumberOfComponents(2);
        ValueRange->SetNumberOfTuples(1);
        ValueRange->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetValueRange());
        ValueRange->SetName(std::string(arrayPrefix + ":LookupTable:" + "ValueRange").c_str());
        pd->GetFieldData()->AddArray(ValueRange);

        vtkSmartPointer<vtkDoubleArray> AlphaRange =
          vtkSmartPointer<vtkDoubleArray>::New();
        AlphaRange->SetNumberOfComponents(2);
        AlphaRange->SetNumberOfTuples(1);
        AlphaRange->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetAlphaRange());
        AlphaRange->SetName(std::string(arrayPrefix + ":LookupTable:" + "AlphaRange").c_str());
        pd->GetFieldData()->AddArray(AlphaRange);

        vtkSmartPointer<vtkDoubleArray> NanColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        NanColor->SetNumberOfComponents(4);
        NanColor->SetNumberOfTuples(1);
        NanColor->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetNanColor());
        NanColor->SetName(std::string(arrayPrefix + ":LookupTable:" + "NanColor").c_str());
        pd->GetFieldData()->AddArray(NanColor);

        vtkSmartPointer<vtkDoubleArray> BelowRangeColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        BelowRangeColor->SetNumberOfComponents(4);
        BelowRangeColor->SetNumberOfTuples(1);
        BelowRangeColor->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetBelowRangeColor());
        BelowRangeColor->SetName(std::string(arrayPrefix + ":LookupTable:" + "BelowRangeColor").c_str());
        pd->GetFieldData()->AddArray(BelowRangeColor);

        vtkSmartPointer<vtkIntArray> UseBelowRangeColor =
          vtkSmartPointer<vtkIntArray>::New();
        UseBelowRangeColor->SetNumberOfComponents(1);
        UseBelowRangeColor->SetNumberOfTuples(1);
        UseBelowRangeColor->SetValue(0, vtkLookupTable::SafeDownCast(lut)->GetUseBelowRangeColor());
        UseBelowRangeColor->SetName(std::string(arrayPrefix + ":LookupTable:" + "UseBelowRangeColor").c_str());
        pd->GetFieldData()->AddArray(UseBelowRangeColor);

        vtkSmartPointer<vtkDoubleArray> AboveRangeColor =
          vtkSmartPointer<vtkDoubleArray>::New();
        AboveRangeColor->SetNumberOfComponents(4);
        AboveRangeColor->SetNumberOfTuples(1);
        AboveRangeColor->SetTuple(0, vtkLookupTable::SafeDownCast(lut)->GetAboveRangeColor());
        AboveRangeColor->SetName(std::string(arrayPrefix + ":LookupTable:" + "AboveRangeColor").c_str());
        pd->GetFieldData()->AddArray(AboveRangeColor);

        vtkSmartPointer<vtkIntArray> UseAboveRangeColor =
          vtkSmartPointer<vtkIntArray>::New();
        UseAboveRangeColor->SetNumberOfComponents(1);
        UseAboveRangeColor->SetNumberOfTuples(1);
        UseAboveRangeColor->SetValue(0, vtkLookupTable::SafeDownCast(lut)->GetUseAboveRangeColor());
        UseAboveRangeColor->SetName(std::string(arrayPrefix + ":LookupTable:" + "UseAboveRangeColor").c_str());
        pd->GetFieldData()->AddArray(UseAboveRangeColor);

        vtkSmartPointer<vtkIdTypeArray> NumberOfTableValues =
          vtkSmartPointer<vtkIdTypeArray>::New();
        NumberOfTableValues->SetNumberOfComponents(1);
        NumberOfTableValues->SetNumberOfTuples(1);
        NumberOfTableValues->SetValue(0, vtkLookupTable::SafeDownCast(lut)->GetNumberOfTableValues());
        NumberOfTableValues->SetName(std::string(arrayPrefix + ":LookupTable:" + "NumberOfTableValues").c_str());
        pd->GetFieldData()->AddArray(NumberOfTableValues);

        vtkSmartPointer<vtkIdTypeArray> NumberOfColors =
          vtkSmartPointer<vtkIdTypeArray>::New();
        NumberOfColors->SetNumberOfComponents(1);
        NumberOfColors->SetNumberOfTuples(1);
        NumberOfColors->SetValue(0, vtkLookupTable::SafeDownCast(lut)->GetNumberOfColors());
        NumberOfColors->SetName(std::string(arrayPrefix + ":LookupTable:" + "NumberOfColors").c_str());
        pd->GetFieldData()->AddArray(NumberOfColors);

        vtkSmartPointer<vtkIntArray> Ramp =
          vtkSmartPointer<vtkIntArray>::New();
        Ramp->SetNumberOfComponents(1);
        Ramp->SetNumberOfTuples(1);
        Ramp->SetValue(0, vtkLookupTable::SafeDownCast(lut)->GetRamp());
        Ramp->SetName(std::string(arrayPrefix + ":LookupTable:" + "Ramp").c_str());
        pd->GetFieldData()->AddArray(Ramp);

        vtkSmartPointer<vtkUnsignedCharArray> Table =
          vtkSmartPointer<vtkUnsignedCharArray>::New();
    //    Table->SetNumberOfComponents(4);
    //    Table->SetNumberOfTuples(vtkLookupTable::SafeDownCast(lut)->GetTable()->GetNumberOfTuples());
        Table->DeepCopy(vtkLookupTable::SafeDownCast(lut)->GetTable());
        Table->SetName(std::string(arrayPrefix + ":LookupTable:" + "Table").c_str());
        pd->GetFieldData()->AddArray(Table);

        vtkSmartPointer<vtkIntArray> ScalarVisibility =
          vtkSmartPointer<vtkIntArray>::New();
        ScalarVisibility->SetNumberOfComponents(1);
        ScalarVisibility->SetNumberOfTuples(1);
        ScalarVisibility->SetValue(0, mapper->GetScalarVisibility());
        ScalarVisibility->SetName(std::string(arrayPrefix + ":" + "ScalarVisibility").c_str());
        pd->GetFieldData()->AddArray(ScalarVisibility);

        vtkSmartPointer<vtkIntArray> Static =
          vtkSmartPointer<vtkIntArray>::New();
        Static->SetNumberOfComponents(1);
        Static->SetNumberOfTuples(1);
        Static->SetValue(0, mapper->GetStatic());
        Static->SetName(std::string(arrayPrefix + ":" + "Static").c_str());
        pd->GetFieldData()->AddArray(Static);

        vtkSmartPointer<vtkDoubleArray> ScalarRange =
          vtkSmartPointer<vtkDoubleArray>::New();
        ScalarRange->SetNumberOfComponents(2);
        ScalarRange->SetNumberOfTuples(1);
        ScalarRange->SetTuple(0, mapper->GetScalarRange());
        ScalarRange->SetName(std::string(arrayPrefix + ":" + "ScalarRange").c_str());
        pd->GetFieldData()->AddArray(ScalarRange);

        vtkSmartPointer<vtkIntArray> UseLookupTableScalarRange =
          vtkSmartPointer<vtkIntArray>::New();
        UseLookupTableScalarRange->SetNumberOfComponents(1);
        UseLookupTableScalarRange->SetNumberOfTuples(1);
        UseLookupTableScalarRange->SetValue(0, mapper->GetUseLookupTableScalarRange());
        UseLookupTableScalarRange->SetName(std::string(arrayPrefix + ":" + "UseLookupTableScalarRange").c_str());
        pd->GetFieldData()->AddArray(UseLookupTableScalarRange);

        vtkSmartPointer<vtkIntArray> ColorMode =
          vtkSmartPointer<vtkIntArray>::New();
        ColorMode->SetNumberOfComponents(1);
        ColorMode->SetNumberOfTuples(1);
        ColorMode->SetValue(0, mapper->GetColorMode());
        ColorMode->SetName(std::string(arrayPrefix + ":" + "ColorMode").c_str());
        pd->GetFieldData()->AddArray(ColorMode);

        vtkSmartPointer<vtkIntArray> InterpolateScalarsBeforeMapping =
          vtkSmartPointer<vtkIntArray>::New();
        InterpolateScalarsBeforeMapping->SetNumberOfComponents(1);
        InterpolateScalarsBeforeMapping->SetNumberOfTuples(1);
        InterpolateScalarsBeforeMapping->SetValue(0, mapper->GetInterpolateScalarsBeforeMapping());
        InterpolateScalarsBeforeMapping->SetName(std::string(arrayPrefix + ":" + "InterpolateScalarsBeforeMapping").c_str());
        pd->GetFieldData()->AddArray(InterpolateScalarsBeforeMapping);

        vtkSmartPointer<vtkIntArray> ScalarMode =
          vtkSmartPointer<vtkIntArray>::New();
        ScalarMode->SetNumberOfComponents(1);
        ScalarMode->SetNumberOfTuples(1);
        ScalarMode->SetValue(0, mapper->GetScalarMode());
        ScalarMode->SetName(std::string(arrayPrefix + ":" + "ScalarMode").c_str());
        pd->GetFieldData()->AddArray(ScalarMode);

        vtkSmartPointer<vtkIntArray> ResolveCoincidentTopology =
          vtkSmartPointer<vtkIntArray>::New();
        ResolveCoincidentTopology->SetNumberOfComponents(1);
        ResolveCoincidentTopology->SetNumberOfTuples(1);
        ResolveCoincidentTopology->SetValue(0, mapper->GetResolveCoincidentTopology());
        ResolveCoincidentTopology->SetName(std::string(arrayPrefix + ":" + "ResolveCoincidentTopology").c_str());
        pd->GetFieldData()->AddArray(ResolveCoincidentTopology);

    #if 0
        vtkSmartPointer<vtkDoubleArray> CoincidentPointOffset =
          vtkSmartPointer<vtkDoubleArray>::New();
        CoincidentPointOffset->SetNumberOfComponents(1);
        CoincidentPointOffset->SetNumberOfTuples(1);
        CoincidentPointOffset->SetValue(0, mapper->GetCoincidentPointOffset());
        CoincidentPointOffset->SetName(std::string(arrayPrefix + ":" + "CoincidentPointOffset").c_str());
        pd->GetFieldData()->AddArray(CoincidentPointOffset);

        vtkSmartPointer<vtkDoubleArray> CoincidentLineOffset =
          vtkSmartPointer<vtkDoubleArray>::New();
        CoincidentLineOffset->SetNumberOfComponents(1);
        CoincidentLineOffset->SetNumberOfTuples(1);
        CoincidentLineOffset->SetValue(0, mapper->GetCoincidentLineOffset());
        CoincidentLineOffset->SetName(std::string(arrayPrefix + ":" + "CoincidentLineOffset").c_str());
        pd->GetFieldData()->AddArray(CoincidentLineOffset);

        vtkSmartPointer<vtkDoubleArray> CoincidentPolygonOffset =
          vtkSmartPointer<vtkDoubleArray>::New();
        CoincidentPolygonOffset->SetNumberOfComponents(1);
        CoincidentPolygonOffset->SetNumberOfTuples(1);
        CoincidentPolygonOffset->SetValue(0, mapper->GetCoincidentPolygonOffset());
        CoincidentPolygonOffset->SetName(std::string(arrayPrefix + ":" + "CoincidentPolygonOffset").c_str());
        pd->GetFieldData()->AddArray(CoincidentPolygonOffset);

        vtkSmartPointer<vtkDoubleArray> CoincidentLineFactor =
          vtkSmartPointer<vtkDoubleArray>::New();
        CoincidentLineFactor->SetNumberOfComponents(1);
        CoincidentLineFactor->SetNumberOfTuples(1);
        CoincidentLineFactor->SetValue(0, mapper->GetCoincidentLineFactor());
        CoincidentLineFactor->SetName(std::string(arrayPrefix + ":" + "CoincidentLineFactor").c_str());
        pd->GetFieldData()->AddArray(CoincidentLineFactor);

        vtkSmartPointer<vtkDoubleArray> CoincidentPolygonFactor =
          vtkSmartPointer<vtkDoubleArray>::New();
        CoincidentPolygonFactor->SetNumberOfComponents(1);
        CoincidentPolygonFactor->SetNumberOfTuples(1);
        CoincidentPolygonFactor->SetValue(0, mapper->GetCoincidentPolygonFactor());
        CoincidentPolygonFactor->SetName(std::string(arrayPrefix + ":" + "CoincidentPolygonFactor").c_str());
        pd->GetFieldData()->AddArray(CoincidentPolygonFactor);
    #endif
      }
    }
    vtkSmartPointer<vtkPolyData> ReadPolyData(const char *fileName)
    {
      vtkSmartPointer<vtkPolyData> polyData;
      std::string extension = vtksys::SystemTools::GetFilenameExtension(std::string(fileName));
      if (extension == ".ply")
      {
        vtkSmartPointer<vtkPLYReader> reader =
          vtkSmartPointer<vtkPLYReader>::New();
        reader->SetFileName (fileName);
        reader->Update();
        polyData = reader->GetOutput();
      }
      else if (extension == ".vtp")
      {
        vtkSmartPointer<vtkXMLPolyDataReader> reader =
          vtkSmartPointer<vtkXMLPolyDataReader>::New();
        reader->SetFileName (fileName);
        reader->Update();
        polyData = reader->GetOutput();
      }
      else if (extension == ".obj")
      {
        vtkSmartPointer<vtkOBJReader> reader =
          vtkSmartPointer<vtkOBJReader>::New();
        reader->SetFileName (fileName);
        reader->Update();
        polyData = reader->GetOutput();
      }
      else if (extension == ".stl")
      {
        vtkSmartPointer<vtkSTLReader> reader =
          vtkSmartPointer<vtkSTLReader>::New();
        reader->SetFileName (fileName);
        reader->Update();
        polyData = reader->GetOutput();
      }
      else if (extension == ".vtk")
      {
        vtkSmartPointer<vtkPolyDataReader> reader =
          vtkSmartPointer<vtkPolyDataReader>::New();
        reader->SetFileName (fileName);
        reader->Update();
        polyData = reader->GetOutput();
      }
      else if (extension == ".g")
      {
        vtkSmartPointer<vtkBYUReader> reader =
          vtkSmartPointer<vtkBYUReader>::New();
        reader->SetGeometryFileName (fileName);
        reader->Update();
        polyData = reader->GetOutput();
      }
      else
      {
        vtkSmartPointer<vtkSphereSource> source =
          vtkSmartPointer<vtkSphereSource>::New();
        source->Update();
        polyData = source->GetOutput();
      }
      return polyData;
    }
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(ExportPolyDataScene)

    find_package(VTK REQUIRED)
    include(${VTK_USE_FILE})

    add_executable(ExportPolyDataScene MACOSX_BUNDLE ExportPolyDataScene.cxx )

    target_link_libraries(ExportPolyDataScene ${VTK_LIBRARIES})

### Download and Build ExportPolyDataScene

Click here to download ExportPolyDataScene and its CMakeLists.txt file. Once the tarball ExportPolyDataScene.tar has been downloaded and extracted,

    cd ExportPolyDataScene/build

If VTK is installed:

    cmake ..

If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

    cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

    make

and run it:

    ./ExportPolyDataScene

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.