Pyramid
VTKExamples/Cxx/GeometricObjects/Pyramid
Code¶
Pyramid.cxx
#include <vtkVersion.h> #include <vtkSmartPointer.h> #include <vtkActor.h> #include <vtkCamera.h> #include <vtkCellArray.h> #include <vtkDataSetMapper.h> #include <vtkPoints.h> #include <vtkPyramid.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkUnstructuredGrid.h> int main(int , char *[]) { vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); float p0[3] = {1.0, 1.0, 1.0}; float p1[3] = {-1.0, 1.0, 1.0}; float p2[3] = {-1.0, -1.0, 1.0}; float p3[3] = {1.0, -1.0, 1.0}; float p4[3] = {0.0, 0.0, 0.0}; points->InsertNextPoint(p0); points->InsertNextPoint(p1); points->InsertNextPoint(p2); points->InsertNextPoint(p3); points->InsertNextPoint(p4); vtkSmartPointer<vtkPyramid> pyramid = vtkSmartPointer<vtkPyramid>::New(); pyramid->GetPointIds()->SetId(0,0); pyramid->GetPointIds()->SetId(1,1); pyramid->GetPointIds()->SetId(2,2); pyramid->GetPointIds()->SetId(3,3); pyramid->GetPointIds()->SetId(4,4); vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New(); cells->InsertNextCell (pyramid); vtkSmartPointer<vtkUnstructuredGrid> ug = vtkSmartPointer<vtkUnstructuredGrid>::New(); ug->SetPoints(points); ug->InsertNextCell(pyramid->GetCellType(),pyramid->GetPointIds()); //Create an actor and mapper vtkSmartPointer<vtkDataSetMapper> mapper = vtkSmartPointer<vtkDataSetMapper>::New(); #if VTK_MAJOR_VERSION <= 5 mapper->SetInput(ug); #else mapper->SetInputData(ug); #endif vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); //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); renderer->AddActor(actor); // Create a nice view renderer->ResetCamera(); renderer->GetActiveCamera()->Azimuth(180); renderer->GetActiveCamera()->Elevation(-20); renderer->ResetCameraClippingRange(); renderer->SetBackground(0.2, 0.3, 0.4); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(Pyramid) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(Pyramid MACOSX_BUNDLE Pyramid.cxx) target_link_libraries(Pyramid ${VTK_LIBRARIES})
Download and Build Pyramid¶
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 Pyramid and its CMakeLists.txt file. Once the tarball Pyramid.tar has been downloaded and extracted,
cd Pyramid/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:
./Pyramid
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.