Cursor3D

VTKExamples/Cxx/Visualization/Cursor3D


Code

Cursor3D.cxx

#include <vtkSphereSource.h>
#include <vtkProperty.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkCursor3D.h>

int main(int, char *[])
{
  // Create a sphere
  vtkSmartPointer<vtkSphereSource> sphereSource = 
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(5.0);
  sphereSource->Update();

  // Create a mapper and actor
  vtkSmartPointer<vtkPolyDataMapper> mapper = 
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(sphereSource->GetOutputPort());

  vtkSmartPointer<vtkActor> actor = 
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);

  // Create a renderer, render window, and interactor
  vtkSmartPointer<vtkRenderer> renderer = 
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow = 
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // Add the actor to the scene
  renderer->AddActor(actor);
  renderer->SetBackground(1,1,1); // Background color white

  vtkSmartPointer<vtkCursor3D> cursor = 
    vtkSmartPointer<vtkCursor3D>::New();
  cursor->SetModelBounds(-10,10,-10,10,-10,10);
  cursor->AllOn();
  cursor->OutlineOff();
  cursor->Update();

  vtkSmartPointer<vtkPolyDataMapper> cursorMapper = 
    vtkSmartPointer<vtkPolyDataMapper>::New();
  cursorMapper->SetInputConnection(cursor->GetOutputPort());
  vtkSmartPointer<vtkActor> cursorActor = 
    vtkSmartPointer<vtkActor>::New();
  cursorActor->GetProperty()->SetColor(1,0,0);
  cursorActor->SetMapper(cursorMapper);
  renderer->AddActor(cursorActor);

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

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(Cursor3D)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(Cursor3D MACOSX_BUNDLE Cursor3D.cxx )

target_link_libraries(Cursor3D ${VTK_LIBRARIES})

Download and Build Cursor3D

Click here to download Cursor3D and its CMakeLists.txt file. Once the tarball Cursor3D.tar has been downloaded and extracted,

cd Cursor3D/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:

./Cursor3D

WINDOWS USERS

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