ImageEllipsoidSource

#include <vtkImageActor.h>
#include <vtkImageCast.h>
#include <vtkImageEllipsoidSource.h>
#include <vtkImageMapper3D.h>
#include <vtkInteractorStyleImage.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>

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

  // Create an image.
  vtkNew<vtkImageEllipsoidSource> source;
  source->SetWholeExtent(0, 20, 0, 20, 0, 0);
  source->SetCenter(10, 10, 0);
  source->SetRadius(3, 4, 5);
  source->Update();

  vtkNew<vtkImageCast> castFilter;
  castFilter->SetInputConnection(source->GetOutputPort());
  castFilter->SetOutputScalarTypeToUnsignedChar();
  castFilter->Update();

  // Create an actor.
  vtkNew<vtkImageActor> actor;
  actor->GetMapper()->SetInputConnection(castFilter->GetOutputPort());

  // Setup renderer.
  vtkNew<vtkRenderer> renderer;
  renderer->AddActor(actor);
  renderer->ResetCamera();
  renderer->SetBackground(colors->GetColor3d("Sienna").GetData());

  // Setup render window.
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->AddRenderer(renderer);
  renderWindow->SetWindowName("ImageEllipsoidSource");

  // Setup render window interactor.
  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  vtkNew<vtkInteractorStyleImage> style;

  renderWindowInteractor->SetInteractorStyle(style);

  // Render and start interaction.
  renderWindowInteractor->SetRenderWindow(renderWindow);

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

  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(ImageEllipsoidSource)

find_package(VTK COMPONENTS 
  CommonColor
  CommonCore
  ImagingCore
  ImagingSources
  InteractionStyle
  RenderingContextOpenGL2
  RenderingCore
  RenderingFreeType
  RenderingGL2PSOpenGL2
  RenderingOpenGL2
)

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

cd ImageEllipsoidSource/build

cmake ..

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

make

./ImageEllipsoidSource