Axes
VTKExamples/Cxx/GeometricObjects/Axes
Description¶
This example shows how to position an vtkAxesActor in 3D. Notice that position and orientation of the vtkAxesActor is done with a user transform.
Seealso
Question
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Code¶
Axes.cxx
#include <vtkActor.h> #include <vtkAxesActor.h> #include <vtkCamera.h> #include <vtkCaptionActor2D.h> #include <vtkNamedColors.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkTextProperty.h> #include <vtkTransform.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(0.5); //create a mapper vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); sphereMapper->SetInputConnection(sphereSource->GetOutputPort()); // create an actor vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New(); sphereActor->SetMapper(sphereMapper); // a renderer and render window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetWindowName("Axes"); renderWindow->AddRenderer(renderer); renderWindow->SetSize(300,300); // an interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // add the actors to the scene renderer->AddActor(sphereActor); renderer->SetBackground(colors->GetColor3d("SlateGray").GetData()); vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New(); transform->Translate(1.0, 0.0, 0.0); vtkSmartPointer<vtkAxesActor> axes = vtkSmartPointer<vtkAxesActor>::New(); // The axes are positioned with a user transform axes->SetUserTransform(transform); // properties of the axes labels can be set as follows // this sets the x axis label to red // axes->GetXAxisCaptionActor2D()->GetCaptionTextProperty()->SetColor( // colors->GetColor3d("Red").GetData()); // the actual text of the axis label can be changed: // axes->SetXAxisLabelText("test"); renderer->AddActor(axes); 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(Axes) find_package(VTK COMPONENTS vtkCommonColor vtkCommonCore vtkCommonDataModel vtkCommonTransforms vtkFiltersSources vtkInteractionStyle vtkRenderingAnnotation vtkRenderingCore vtkRenderingFreeType vtkRenderingOpenGL2 QUIET) if (NOT VTK_FOUND) message("Skipping Axes: ${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(Axes MACOSX_BUNDLE Axes.cxx ) target_link_libraries(Axes PRIVATE ${VTK_LIBRARIES}) else () # include all components add_executable(Axes MACOSX_BUNDLE Axes.cxx ) target_link_libraries(Axes PRIVATE ${VTK_LIBRARIES}) # vtk_module_autoinit is needed vtk_module_autoinit( TARGETS Axes MODULES ${VTK_LIBRARIES} ) endif ()
Download and Build Axes¶
Click here to download Axes and its CMakeLists.txt file. Once the tarball Axes.tar has been downloaded and extracted,
cd Axes/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:
./Axes
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.