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Dodecahedron

vtk-examples/Cxx/GeometricObjects/Dodecahedron


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Code

Dodecahedron.cxx

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

namespace {
vtkSmartPointer<vtkPolyhedron> MakeDodecahedron();
}

int main(int, char*[])
{
  vtkNew<vtkNamedColors> colors;

  auto dodecahedron = MakeDodecahedron();

  // Visualize
  vtkNew<vtkPolyDataMapper> mapper;
  mapper->SetInputData(dodecahedron->GetPolyData());

  vtkNew<vtkActor> actor;
  actor->SetMapper(mapper);
  actor->GetProperty()->SetColor(colors->GetColor3d("PapayaWhip").GetData());

  vtkNew<vtkRenderer> renderer;
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->SetWindowName("Dodecahedron");
  renderWindow->AddRenderer(renderer);
  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  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;
}
} // namespace

CMakeLists.txt

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(Dodecahedron)

find_package(VTK COMPONENTS 
  CommonColor
  CommonCore
  CommonDataModel
  InteractionStyle
  RenderingContextOpenGL2
  RenderingCore
  RenderingFreeType
  RenderingGL2PSOpenGL2
  RenderingOpenGL2
  QUIET
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "Dodecahedron: Unable to find the VTK build folder.")
endif()

# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
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}
)

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.