DisplayCoordinateAxes

VTKEx/Cxx/Visualization/DisplayCoordinateAxes

Description

This example shows how to display the coordinate axes in the render window.

Seealso

Axes.

Other languages

See (Python), (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

DisplayCoordinateAxes.cxx

#include <vtkActor.h>
#include <vtkAxesActor.h>
#include <vtkCamera.h>
#include <vtkNamedColors.h>
#include <vtkOrientationMarkerWidget.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkPropAssembly.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>

int main (int, char *[])
{
  vtkSmartPointer<vtkNamedColors> colors =
    vtkSmartPointer<vtkNamedColors>::New();

  vtkSmartPointer<vtkSphereSource> sphereSource = 
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(1.0);
  sphereSource->Update();

  vtkPolyData* polydata = sphereSource->GetOutput();

  // Create a mapper
  vtkSmartPointer<vtkPolyDataMapper> mapper = 
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputData(polydata);

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

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

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

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

  vtkSmartPointer<vtkAxesActor> axes = 
    vtkSmartPointer<vtkAxesActor>::New();

  vtkSmartPointer<vtkOrientationMarkerWidget> widget = 
    vtkSmartPointer<vtkOrientationMarkerWidget>::New();
  double rgba[4]{0.0, 0.0, 0.0, 0.0};
  colors->GetColor("Carrot",rgba);
  widget->SetOutlineColor(rgba[0], rgba[1], rgba[2]);
  widget->SetOrientationMarker( axes );
  widget->SetInteractor( renderWindowInteractor );
  widget->SetViewport( 0.0, 0.0, 0.4, 0.4 );
  widget->SetEnabled( 1 );
  widget->InteractiveOn();

  renderer->GetActiveCamera()->Azimuth(50);
  renderer->GetActiveCamera()->Elevation(-30);

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

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

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(DisplayCoordinateAxes)

find_package(VTK COMPONENTS 
  vtkvtkCommonColor
  vtkvtkCommonCore
  vtkvtkCommonDataModel
  vtkvtkFiltersSources
  vtkvtkInteractionStyle
  vtkvtkInteractionWidgets
  vtkvtkRenderingAnnotation
  vtkvtkRenderingContextOpenGL2
  vtkvtkRenderingCore
  vtkvtkRenderingFreeType
  vtkvtkRenderingGL2PSOpenGL2
  vtkvtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
  message("Skipping DisplayCoordinateAxes: ${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(DisplayCoordinateAxes MACOSX_BUNDLE DisplayCoordinateAxes.cxx )
  target_link_libraries(DisplayCoordinateAxes PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(DisplayCoordinateAxes MACOSX_BUNDLE DisplayCoordinateAxes.cxx )
  target_link_libraries(DisplayCoordinateAxes PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS DisplayCoordinateAxes
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build DisplayCoordinateAxes

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

cd DisplayCoordinateAxes/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:

./DisplayCoordinateAxes

WINDOWS USERS

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