# CubeAxesActor2D

VTKExamples/Cxx/Visualization/CubeAxesActor2D

### Description

For more information on how to configure this actor, see this email.

This was converted from Python to C++. The source I found for the Python was at: cubeAxes.py

Seealso

BoundingBox and Outline.

### Code

CubeAxesActor2D.cxx

    #include <vtkVersion.h>
    #include <vtkNew.h>
    #include <vtkPlatonicSolidSource.h>
    #include <vtkPolyDataNormals.h>
    #include <vtkPolyDataMapper.h>
    #include <vtkLODActor.h>
    #include <vtkOutlineFilter.h>
    #include <vtkActor.h>
    #include <vtkCamera.h>
    #include <vtkLight.h>
    #include <vtkRenderer.h>
    #include <vtkRenderWindow.h>
    #include <vtkRenderWindowInteractor.h>
    #include <vtkProperty.h>
    #include <vtkTextProperty.h>
    #include <vtkCubeAxesActor2D.h>

    // The vtkCubeAxesActor2D draws axes on the bounding box of the data set and
    // labels the axes with x-y-z coordinates.

    //----------------------------------------------------------------------------//
    int main(int, char *[])
    {
      vtkNew<vtkPlatonicSolidSource> icosahedron;
      icosahedron->SetSolidTypeToIcosahedron();

      // Create a vtkPolyDataNormals filter to calculate the normals of the data set.
      vtkNew<vtkPolyDataNormals> normals;
    #if VTK_MAJOR_VERSION <= 5
      icosahedron->Update();
      normals->SetInput(icosahedron->GetOutput());
    #else
      normals->SetInputConnection(icosahedron->GetOutputPort());
    #endif

      // Set up the associated mapper and actor.
      vtkNew<vtkPolyDataMapper> icosahedron_mapper;
    #if VTK_MAJOR_VERSION <= 5
      normals->Update();
      icosahedron_mapper->SetInput(normals->GetOutput());
    #else
      icosahedron_mapper->SetInputConnection(normals->GetOutputPort());
    #endif
      icosahedron_mapper->ScalarVisibilityOff();

      vtkNew<vtkLODActor> icosahedron_actor;
      icosahedron_actor->SetMapper(icosahedron_mapper.GetPointer());
      icosahedron_actor->GetProperty()->SetColor(0.8, .1, .9);

      // Create a vtkOutlineFilter to draw the bounding box of the data set.
      // Also create the associated mapper and actor.
      vtkNew<vtkOutlineFilter> outline;
    #if VTK_MAJOR_VERSION <= 5
      outline->SetInput(normals->GetOutput());
    #else
      outline->SetInputConnection(normals->GetOutputPort());
    #endif

      vtkNew<vtkPolyDataMapper> map_outline;
    #if VTK_MAJOR_VERSION <= 5
      map_outline->SetInput(outline->GetOutput());
    #else
      map_outline->SetInputConnection(outline->GetOutputPort());
    #endif

      vtkNew<vtkActor> outline_actor;
      outline_actor->SetMapper(map_outline.GetPointer());
      outline_actor->GetProperty()->SetColor(0., 0., 0.);

      // Create the Renderers.  Assign them the appropriate viewport
      // coordinates, active camera, and light.
      vtkNew<vtkRenderer> ren;
      ren->SetViewport(0, 0, 0.5, 1.0);
      // It is also possible to enhance the display with cameras.
      // ren->SetActiveCamera(camera);
      // ren->AddLight(light);

      vtkNew<vtkRenderer> ren2;
      ren2->SetViewport(0.5, 0, 1.0, 1.0);
      ren2->SetActiveCamera(ren->GetActiveCamera());
      // ren2->AddLight(light);

      // Create the RenderWindow and RenderWindowInteractor.
      vtkNew<vtkRenderWindow> renWin;
      renWin->AddRenderer(ren.GetPointer());
      renWin->AddRenderer(ren2.GetPointer());
      renWin->SetWindowName("VTK - Cube Axes");
      renWin->SetSize(600, 300);

      vtkNew<vtkRenderWindowInteractor> iren;
      iren->SetRenderWindow(renWin.GetPointer());

      // Add the actors to the renderer, and set the background.
      ren->AddViewProp(icosahedron_actor.GetPointer());
      ren->AddViewProp(outline_actor.GetPointer());
      ren2->AddViewProp(icosahedron_actor.GetPointer());
      ren2->AddViewProp(outline_actor.GetPointer());

      ren->SetBackground(0.1, 0.2, 0.4);
      ren2->SetBackground(0.1, 0.2, 0.4);

      // Create a text property for both cube axes
      vtkNew<vtkTextProperty> tprop;
      tprop->SetColor(1, 1, 1);
      tprop->ShadowOn();
      tprop->SetFontSize(20);

      // Create a vtkCubeAxesActor2D.  Use the outer edges of the bounding box to
      // draw the axes.  Add the actor to the renderer.
      vtkNew<vtkCubeAxesActor2D> axes;
    #if VTK_MAJOR_VERSION <= 5
      axes->SetInput(normals->GetOutput());
    #else
      axes->SetInputConnection(normals->GetOutputPort());
    #endif
      axes->SetCamera(ren->GetActiveCamera());
      axes->SetLabelFormat("%6.4g");
      axes->SetFlyModeToOuterEdges();
      axes->SetAxisTitleTextProperty(tprop.GetPointer());
      axes->SetAxisLabelTextProperty(tprop.GetPointer());
      ren->AddViewProp(axes.GetPointer());

      // Create a vtkCubeAxesActor2D.  Use the closest vertex to the camera to
      // determine where to draw the axes.  Add the actor to the renderer.
      vtkNew<vtkCubeAxesActor2D> axes2;
      axes2->SetViewProp(icosahedron_actor.GetPointer());
      axes2->SetCamera(ren2->GetActiveCamera());
      axes2->SetLabelFormat("%6.4g");
      axes2->SetFlyModeToClosestTriad();
      axes2->ScalingOff();
      axes2->SetAxisTitleTextProperty(tprop.GetPointer());
      axes2->SetAxisLabelTextProperty(tprop.GetPointer());
      ren2->AddViewProp(axes2.GetPointer());

      ren->ResetCamera();
      iren->Initialize();
      renWin->Render();
      iren->Start();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(CubeAxesActor2D)

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

    add_executable(CubeAxesActor2D MACOSX_BUNDLE CubeAxesActor2D.cxx)

    target_link_libraries(CubeAxesActor2D ${VTK_LIBRARIES})

### Download and Build CubeAxesActor2D

Danger

The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.

Click here to download CubeAxesActor2D and its CMakeLists.txt file. Once the tarball CubeAxesActor2D.tar has been downloaded and extracted,

    cd CubeAxesActor2D/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:

    ./CubeAxesActor2D

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