Tetrahedron
VTKExamples/Cxx/GeometricObjects/Tetrahedron
Code¶
Tetrahedron.cxx
#include <vtkVersion.h> #include <vtkSmartPointer.h> #include <vtkCellArray.h> #include <vtkTetra.h> #include <vtkUnstructuredGrid.h> #include <vtkPoints.h> #include <vtkCellType.h> #include <vtkDataSetMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> int main(int, char*[]) { vtkSmartPointer< vtkPoints > points = vtkSmartPointer< vtkPoints > :: New(); points->InsertNextPoint(0, 0, 0); points->InsertNextPoint(1, 0, 0); points->InsertNextPoint(1, 1, 0); points->InsertNextPoint(0, 1, 1); points->InsertNextPoint(5, 5, 5); points->InsertNextPoint(6, 5, 5); points->InsertNextPoint(6, 6, 5); points->InsertNextPoint(5, 6, 6); // Method 1 vtkSmartPointer<vtkUnstructuredGrid> unstructuredGrid1 = vtkSmartPointer<vtkUnstructuredGrid>::New(); unstructuredGrid1->SetPoints(points); vtkIdType ptIds[] = {0, 1, 2, 3}; unstructuredGrid1->InsertNextCell( VTK_TETRA, 4, ptIds ); // Method 2 vtkSmartPointer<vtkUnstructuredGrid> unstructuredGrid2 = vtkSmartPointer<vtkUnstructuredGrid>::New(); unstructuredGrid2->SetPoints(points); vtkSmartPointer<vtkTetra> tetra = vtkSmartPointer<vtkTetra>::New(); tetra->GetPointIds()->SetId(0, 4); tetra->GetPointIds()->SetId(1, 5); tetra->GetPointIds()->SetId(2, 6); tetra->GetPointIds()->SetId(3, 7); vtkSmartPointer<vtkCellArray> cellArray = vtkSmartPointer<vtkCellArray>::New(); cellArray->InsertNextCell(tetra); unstructuredGrid2->SetCells(VTK_TETRA, cellArray); // Create a mapper and actor vtkSmartPointer<vtkDataSetMapper> mapper1 = vtkSmartPointer<vtkDataSetMapper>::New(); #if VTK_MAJOR_VERSION <= 5 mapper1->SetInputConnection(unstructuredGrid1->GetProducerPort()); #else mapper1->SetInputData(unstructuredGrid1); #endif vtkSmartPointer<vtkActor> actor1 = vtkSmartPointer<vtkActor>::New(); actor1->SetMapper(mapper1); // Create a mapper and actor vtkSmartPointer<vtkDataSetMapper> mapper2 = vtkSmartPointer<vtkDataSetMapper>::New(); #if VTK_MAJOR_VERSION <= 5 mapper2->SetInputConnection(unstructuredGrid2->GetProducerPort()); #else mapper2->SetInputData(unstructuredGrid2); #endif vtkSmartPointer<vtkActor> actor2 = vtkSmartPointer<vtkActor>::New(); actor2->SetMapper(mapper2); // Create a renderer, render window, and interactor vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Add the actor to the scene renderer->AddActor(actor1); renderer->AddActor(actor2); renderer->SetBackground(.3, .6, .3); // Background color green // Render and interact renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(Tetrahedron) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(Tetrahedron MACOSX_BUNDLE Tetrahedron.cxx) target_link_libraries(Tetrahedron ${VTK_LIBRARIES})
Download and Build Tetrahedron¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download Tetrahedron and its CMakeLists.txt file. Once the tarball Tetrahedron.tar has been downloaded and extracted,
cd Tetrahedron/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:
./Tetrahedron
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.