HierarchicalBoxPipeline
VTKExamples/Cxx/CompositeData/HierarchicalBoxPipeline
Description¶
This example demonstrates how hierarchical box (uniform rectilinear) AMR datasets can be processed using the new vtkHierarchicalBoxDataSet class.
Note
This original source code for this example is here.
Code¶
HierarchicalBoxPipeline.cxx
// This example demonstrates how hierarchical box (uniform rectilinear) // AMR datasets can be processed using the new vtkHierarchicalBoxDataSet class. // // The command line arguments are: // -I => run in interactive mode; unless this is used, the program will // not allow interaction and exit // -D <path> => path to the data; the data should be in <path>/Data/ #include <vtkSmartPointer.h> #include <vtkCamera.h> #include <vtkCellDataToPointData.h> #include <vtkCompositeDataPipeline.h> #include <vtkContourFilter.h> #include <vtkExtractLevel.h> #include <vtkHierarchicalDataSetGeometryFilter.h> #include <vtkOutlineCornerFilter.h> #include <vtkHierarchicalPolyDataMapper.h> #include <vtkProperty.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkShrinkPolyData.h> #include <vtkXMLHierarchicalBoxDataReader.h> int main(int argc, char* argv[]) { if (argc < 2) { std::cout << "Usage: " << argv[0] << " file.vtm" << std::endl; return EXIT_FAILURE; } // Standard rendering classes vtkSmartPointer<vtkRenderer> ren = vtkSmartPointer<vtkRenderer>::New(); vtkCamera* cam = ren->GetActiveCamera(); cam->SetPosition(-5.1828, 5.89733, 8.97969); cam->SetFocalPoint(14.6491, -2.08677, -8.92362); cam->SetViewUp(0.210794, 0.95813, -0.193784); vtkSmartPointer<vtkRenderWindow> renWin = vtkSmartPointer<vtkRenderWindow>::New(); renWin->AddRenderer(ren); vtkSmartPointer<vtkRenderWindowInteractor> iren = vtkSmartPointer<vtkRenderWindowInteractor>::New(); iren->SetRenderWindow(renWin); vtkSmartPointer<vtkXMLHierarchicalBoxDataReader> reader = vtkSmartPointer<vtkXMLHierarchicalBoxDataReader>::New(); reader->SetFileName(argv[1]); // geometry filter vtkSmartPointer<vtkHierarchicalDataSetGeometryFilter> geom = vtkSmartPointer<vtkHierarchicalDataSetGeometryFilter>::New(); geom->SetInputConnection(0, reader->GetOutputPort(0)); vtkSmartPointer<vtkShrinkPolyData> shrink = vtkSmartPointer<vtkShrinkPolyData>::New(); shrink->SetShrinkFactor(0.5); shrink->SetInputConnection(0, geom->GetOutputPort(0)); return EXIT_SUCCESS; // // Rendering objects // vtkSmartPointer<vtkHierarchicalPolyDataMapper> shMapper = // vtkSmartPointer<vtkHierarchicalPolyDataMapper>::New(); // shMapper->SetInputConnection(0, shrink->GetOutputPort(0)); // vtkSmartPointer<vtkActor> shActor = // vtkSmartPointer<vtkActor>::New(); // shActor->SetMapper(shMapper); // shActor->GetProperty()->SetColor(0, 0, 1); // ren->AddActor(shActor); // // corner outline // vtkSmartPointer<vtkOutlineCornerFilter> ocf = // vtkSmartPointer<vtkOutlineCornerFilter>::New(); // vtkSmartPointer<vtkCompositeDataPipeline> pipeline = // vtkSmartPointer<vtkCompositeDataPipeline>::New(); // ocf->SetExecutive(pipeline); // ocf->SetInputConnection(0, reader->GetOutputPort(0)); // // Rendering objects // // This one is actually just a vtkPolyData so it doesn't need a hierarchical // // mapper, but we use this one to test hierarchical mapper with polydata input // vtkSmartPointer<vtkHierarchicalPolyDataMapper> ocMapper = // vtkSmartPointer<vtkHierarchicalPolyDataMapper>::New(); // ocMapper->SetInputConnection(0, ocf->GetOutputPort(0)); // vtkSmartPointer<vtkActor> ocActor = // vtkSmartPointer<vtkActor>::New(); // ocActor->SetMapper(ocMapper); // ocActor->GetProperty()->SetColor(1, 0, 0); // ren->AddActor(ocActor); // // cell 2 point and contour // vtkSmartPointer<vtkExtractLevel> el = // vtkSmartPointer<vtkExtractLevel>::New(); // el->SetInputConnection(0, reader->GetOutputPort(0)); // el->AddLevel(2); // vtkSmartPointer<vtkCellDataToPointData> c2p = // vtkSmartPointer<vtkCellDataToPointData>::New(); // pipeline = vtkCompositeDataPipeline::New(); // c2p->SetExecutive(pipeline); // c2p->SetInputConnection(0, el->GetOutputPort(0)); // vtkSmartPointer<vtkContourFilter> contour = // vtkSmartPointer<vtkContourFilter>::New(); // pipeline = vtkCompositeDataPipeline::New(); // contour->SetExecutive(pipeline); // contour->SetInputConnection(0, c2p->GetOutputPort(0)); // contour->SetValue(0, -0.013); // contour->SetInputArrayToProcess( // 0,0,0,vtkDataObject::FIELD_ASSOCIATION_POINTS,"phi"); // // Rendering // vtkSmartPointer<vtkHierarchicalPolyDataMapper> contMapper = // vtkSmartPointer<vtkHierarchicalPolyDataMapper>::New(); // contMapper->SetInputConnection(0, contour->GetOutputPort(0)); // vtkSmartPointer<vtkActor> contActor = // vtkSmartPointer<vtkActor>::New(); // contActor->SetMapper(contMapper); // contActor->GetProperty()->SetColor(1, 0, 0); // ren->AddActor(contActor); // ren->SetBackground(1,1,1); // renWin->SetSize(300,300); // ren->ResetCamera(); // iren->Start(); // return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(HierarchicalBoxPipeline) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(HierarchicalBoxPipeline MACOSX_BUNDLE HierarchicalBoxPipeline.cxx ) target_link_libraries(HierarchicalBoxPipeline ${VTK_LIBRARIES})
Download and Build HierarchicalBoxPipeline¶
Click here to download HierarchicalBoxPipeline and its CMakeLists.txt file. Once the tarball HierarchicalBoxPipeline.tar has been downloaded and extracted,
cd HierarchicalBoxPipeline/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:
./HierarchicalBoxPipeline
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.