Outline
VTKExamples/Cxx/PolyData/Outline
Description¶
This example shows how to draw the outline of the dataset.
Seealso
Question
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Code¶
Outline.cxx
#include <vtkSphereSource.h> #include <vtkProperty.h> #include <vtkPolyData.h> #include <vtkSmartPointer.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkOutlineFilter.h> int main(int, char *[]) { // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->SetCenter(0.0, 0.0, 0.0); sphereSource->SetRadius(5.0); sphereSource->Update(); vtkPolyData* sphere = sphereSource->GetOutput(); vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputData(sphere); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); // Create the outline vtkSmartPointer<vtkOutlineFilter> outline = vtkSmartPointer<vtkOutlineFilter>::New(); outline->SetInputData(sphere); vtkSmartPointer<vtkPolyDataMapper> outlineMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); outlineMapper->SetInputConnection(outline->GetOutputPort()); vtkSmartPointer<vtkActor> outlineActor = vtkSmartPointer<vtkActor>::New(); outlineActor->SetMapper(outlineMapper); outlineActor->GetProperty()->SetColor(0,0,0); // Setup the window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Add the actors to the scene renderer->AddActor(actor); renderer->AddActor(outlineActor); renderer->SetBackground(1,1,1); // Background color white // Render and interact renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR) project(Outline) find_package(VTK COMPONENTS vtkCommonCore vtkCommonDataModel vtkFiltersModeling vtkFiltersSources vtkInteractionStyle vtkRenderingCore vtkRenderingFreeType vtkRenderingOpenGL2 QUIET) if (NOT VTK_FOUND) message("Skipping Outline: ${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(Outline MACOSX_BUNDLE Outline.cxx ) target_link_libraries(Outline PRIVATE ${VTK_LIBRARIES}) else () # include all components add_executable(Outline MACOSX_BUNDLE Outline.cxx ) target_link_libraries(Outline PRIVATE ${VTK_LIBRARIES}) # vtk_module_autoinit is needed vtk_module_autoinit( TARGETS Outline MODULES ${VTK_LIBRARIES} ) endif ()
Download and Build Outline¶
Click here to download Outline and its CMakeLists.txt file. Once the tarball Outline.tar has been downloaded and extracted,
cd Outline/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:
./Outline
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.