Cursor2D

#include <vtkActor.h>
#include <vtkCursor2D.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>

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

  // Create a sphere
  vtkNew<vtkSphereSource> sphereSource;
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(5.0);
  sphereSource->Update();

  // Create a mapper and actor.
  vtkNew<vtkPolyDataMapper> mapper;
  mapper->SetInputConnection(sphereSource->GetOutputPort());

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

  // Create a renderer, render window, and interactor.
  vtkNew<vtkRenderer> renderer;
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->AddRenderer(renderer);
  renderWindow->SetWindowName("Cursor2D");

  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // Add the actor to the scene.
  renderer->AddActor(actor);
  renderer->SetBackground(colors->GetColor3d("MidnightBlue").GetData());

  vtkNew<vtkCursor2D> cursor;
  cursor->SetModelBounds(-10, 10, -10, 10, 0, 0);
  cursor->AllOn();
  cursor->SetFocalPoint(5.0, 5.0, 0.0);
  cursor->OutlineOn();
  cursor->Update();

  vtkNew<vtkPolyDataMapper> cursorMapper;
  cursorMapper->SetInputConnection(cursor->GetOutputPort());
  vtkNew<vtkActor> cursorActor;
  cursorActor->GetProperty()->SetColor(colors->GetColor3d("Red").GetData());
  cursorActor->SetMapper(cursorMapper);
  renderer->AddActor(cursorActor);

  // Render and interact.
  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(Cursor2D)

find_package(VTK COMPONENTS 
  CommonColor
  CommonCore
  FiltersGeneral
  FiltersSources
  InteractionStyle
  RenderingContextOpenGL2
  RenderingCore
  RenderingFreeType
  RenderingGL2PSOpenGL2
  RenderingOpenGL2
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "Cursor2D: 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(Cursor2D MACOSX_BUNDLE Cursor2D.cxx )
  target_link_libraries(Cursor2D PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
  TARGETS Cursor2D
  MODULES ${VTK_LIBRARIES}
)

cd Cursor2D/build

cmake ..

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

make

./Cursor2D