PickableOff

VTKEx/Cxx/Interaction/PickableOff

Other languages

See (Java)

Question

If you have a simple question about this example contact us at VTKExProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum

Code

PickableOff.cxx

#include <vtkSmartPointer.h>
#include <vtkActor.h>
#include <vtkConeSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleTrackballActor.h>

int main(int, char *[])
{
  vtkSmartPointer<vtkConeSource> coneSource0 =
    vtkSmartPointer<vtkConeSource>::New();
  coneSource0->Update();

  vtkSmartPointer<vtkConeSource> coneSource1 =
    vtkSmartPointer<vtkConeSource>::New();
  coneSource1->SetCenter(5,0,0);
  coneSource1->Update();

  // Create mappers and actors
  vtkSmartPointer<vtkPolyDataMapper> coneMapper0 =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  coneMapper0->SetInputConnection(coneSource0->GetOutputPort());

  vtkSmartPointer<vtkPolyDataMapper> coneMapper1 =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  coneMapper1->SetInputConnection(coneSource1->GetOutputPort());

  // Create actors
  vtkSmartPointer<vtkActor> coneActor0 =
    vtkSmartPointer<vtkActor>::New();
  coneActor0->SetMapper(coneMapper0);

  vtkSmartPointer<vtkActor> coneActor1 =
    vtkSmartPointer<vtkActor>::New();
  coneActor1->SetMapper(coneMapper1);
  coneActor1->PickableOff();

  // A renderer and render window
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);

  // An interactor
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // Add the actors to the scene
  renderer->AddActor(coneActor0);
  renderer->AddActor(coneActor1);
  renderer->SetBackground(0.5,0.5,0.5);

  renderer->ResetCamera();
  renderWindow->Render();

  vtkSmartPointer<vtkInteractorStyleTrackballActor> style =
    vtkSmartPointer<vtkInteractorStyleTrackballActor>::New();

  renderWindowInteractor->SetInteractorStyle( style );

  // Begin mouse interaction
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(PickableOff)

find_package(VTK COMPONENTS 
  vtkvtkCommonCore
  vtkvtkFiltersSources
  vtkvtkInteractionStyle
  vtkvtkRenderingContextOpenGL2
  vtkvtkRenderingCore
  vtkvtkRenderingFreeType
  vtkvtkRenderingGL2PSOpenGL2
  vtkvtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
  message("Skipping PickableOff: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(PickableOff MACOSX_BUNDLE PickableOff.cxx )
  target_link_libraries(PickableOff PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(PickableOff MACOSX_BUNDLE PickableOff.cxx )
  target_link_libraries(PickableOff PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS PickableOff
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build PickableOff

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

cd PickableOff/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:

./PickableOff

WINDOWS USERS

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