Pyramid

#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkCellArray.h>
#include <vtkDataSetMapper.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPoints.h>
#include <vtkProperty.h>
#include <vtkPyramid.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkUnstructuredGrid.h>

int main(int, char*[])
{
  vtkNew<vtkPoints> points;

  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);

  vtkNew<vtkPyramid> pyramid;
  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);

  vtkNew<vtkCellArray> cells;
  cells->InsertNextCell(pyramid);

  vtkNew<vtkUnstructuredGrid> ug;
  ug->SetPoints(points);
  ug->InsertNextCell(pyramid->GetCellType(), pyramid->GetPointIds());

  // Create an actor and mapper
  vtkNew<vtkNamedColors> colors;
  vtkNew<vtkDataSetMapper> mapper;
  mapper->SetInputData(ug);

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

  // Create a renderer, render window, and interactor
  vtkNew<vtkRenderer> renderer;
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->SetWindowName("Pyramid");
  renderWindow->AddRenderer(renderer);
  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  renderWindowInteractor->SetRenderWindow(renderWindow);

  renderer->AddActor(actor);

  // Create a nice view
  renderer->ResetCamera();
  renderer->GetActiveCamera()->Azimuth(180);
  renderer->GetActiveCamera()->Elevation(-20);
  renderer->ResetCameraClippingRange();

  renderer->SetBackground(colors->GetColor3d("Silver").GetData());

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

  return EXIT_SUCCESS;
}

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(Pyramid)

find_package(VTK COMPONENTS 
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "Pyramid: 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(Pyramid MACOSX_BUNDLE Pyramid.cxx )
  target_link_libraries(Pyramid PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
  TARGETS Pyramid
  MODULES ${VTK_LIBRARIES}
)

cd Pyramid/build

cmake ..

cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

make

./Pyramid