Dodecahedron

VTKExamples/Cxx/GeometricObjects/Dodecahedron


Other Languages

See (Python)

Question

If you have a simple question about this example contact us at VTKExamplesProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum

Code

Dodecahedron.cxx

#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkLookupTable.h>
#include <vtkNamedColors.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkPolyhedron.h>
#include <vtkProperty.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>

namespace
{
vtkSmartPointer<vtkPolyhedron> MakeDodecahedron();
}

int main (int, char *[])
{
  vtkSmartPointer<vtkNamedColors> colors =
    vtkSmartPointer<vtkNamedColors>::New();

  vtkSmartPointer<vtkPolyhedron> dodecahedron = MakeDodecahedron();

  // Visualize
  vtkSmartPointer<vtkPolyDataMapper> mapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputData(dodecahedron->GetPolyData());

  vtkSmartPointer<vtkActor> actor =
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);
  actor->GetProperty()->SetColor(
    colors->GetColor3d("PapayaWhip").GetData());

  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->SetWindowName("Dodecahedron");
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  renderer->AddActor(actor);
  renderer->SetBackground(colors->GetColor3d("CadetBlue").GetData());
  renderer->GetActiveCamera()->Azimuth(30);
  renderer->GetActiveCamera()->Elevation(30);

  renderer->ResetCamera();

  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

namespace
{

  vtkSmartPointer<vtkPolyhedron>MakeDodecahedron()
  {
    vtkSmartPointer<vtkPolyhedron> aDodecahedron =
      vtkSmartPointer<vtkPolyhedron>::New();

    for (int i = 0; i < 20; ++i)
    {
      aDodecahedron->GetPointIds()->InsertNextId(i);
    }

    aDodecahedron->GetPoints()->InsertNextPoint(1.21412,    0,          1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(0.375185,   1.1547,     1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(-0.982247,  0.713644,   1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(-0.982247,  -0.713644,  1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(0.375185,   -1.1547,    1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(1.96449,    0,          0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(0.607062,   1.86835,    0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(-1.58931,   1.1547,     0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(-1.58931,   -1.1547,    0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(0.607062,   -1.86835,   0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(1.58931,    1.1547,     -0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(-0.607062,  1.86835,    -0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(-1.96449,   0,          -0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(-0.607062,  -1.86835,   -0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(1.58931,    -1.1547,    -0.375185);
    aDodecahedron->GetPoints()->InsertNextPoint(0.982247,   0.713644,   -1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(-0.375185,  1.1547,     -1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(-1.21412,   0,          -1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(-0.375185,  -1.1547,    -1.58931);
    aDodecahedron->GetPoints()->InsertNextPoint(0.982247,   -0.713644,  -1.58931);

    vtkIdType faces[73] =
      {12,                   // number of faces
      5, 0, 1, 2, 3, 4,     // number of ids on face, ids
      5, 0, 5, 10, 6, 1,
      5, 1, 6, 11, 7, 2,
      5, 2, 7, 12, 8, 3,
      5, 3, 8, 13, 9, 4,
      5, 4, 9, 14, 5, 0,
      5, 15, 10, 5, 14, 19,
      5, 16, 11, 6, 10, 15,
      5, 17, 12, 7, 11, 16,
      5, 18, 13, 8, 12, 17,
      5, 19, 14, 9, 13, 18,
      5, 19, 18, 17, 16, 15};

    aDodecahedron->SetFaces(faces);
    aDodecahedron->Initialize();

    return aDodecahedron;
  }
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(Dodecahedron)

find_package(VTK COMPONENTS 
  vtkCommonColor
  vtkCommonCore
  vtkCommonDataModel
  vtkInteractionStyle
  vtkRenderingCore
  vtkRenderingFreeType
  vtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
  message("Skipping Dodecahedron: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(Dodecahedron MACOSX_BUNDLE Dodecahedron.cxx )
  target_link_libraries(Dodecahedron PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(Dodecahedron MACOSX_BUNDLE Dodecahedron.cxx )
  target_link_libraries(Dodecahedron PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS Dodecahedron
    MODULES ${VTK_LIBRARIES}
    )
endif () 

Download and Build Dodecahedron

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

cd Dodecahedron/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:

./Dodecahedron

WINDOWS USERS

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