DisplayCoordinateAxes

Repository source: 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 question about this example, please use the VTK Discourse Forum

Code¶

DisplayCoordinateAxes.cxx

#include <vtkActor.h>
#include <vtkAxesActor.h>
#include <vtkCamera.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkOrientationMarkerWidget.h>
#include <vtkPolyData.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;

  vtkNew<vtkSphereSource> sphereSource;
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(1.0);
  sphereSource->Update();

  vtkPolyData* polydata = sphereSource->GetOutput();

  // Create a mapper.
  vtkNew<vtkPolyDataMapper> mapper;
  mapper->SetInputData(polydata);

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

  // A renderer and render window.
  vtkNew<vtkRenderer> renderer;
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->SetWindowName("DisplayCoordinateAxes");
  renderWindow->AddRenderer(renderer);

  // An interactor
  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  renderWindowInteractor->SetRenderWindow(renderWindow);

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

  vtkNew<vtkAxesActor> axes;

  vtkNew<vtkOrientationMarkerWidget> widget;
  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 3.12 FATAL_ERROR)

project(DisplayCoordinateAxes)

find_package(VTK COMPONENTS 
  CommonColor
  CommonCore
  CommonDataModel
  FiltersSources
  InteractionStyle
  InteractionWidgets
  RenderingAnnotation
  RenderingContextOpenGL2
  RenderingCore
  RenderingFreeType
  RenderingGL2PSOpenGL2
  RenderingOpenGL2
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "DisplayCoordinateAxes: 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(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}
)

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.