LinearExtrusion
VTKExamples/Cxx/PolyData/LinearExtrusion
Description¶
This example creates some text, extrudes it to make it 3D.
Code¶
LinearExtrusion.cxx
#include <vtkSmartPointer.h> #include <vtkVectorText.h> #include <vtkLinearExtrusionFilter.h> #include <vtkTriangleFilter.h> #include <vtkDataSetMapper.h> #include <vtkActor.h> #include <vtkProperty.h> #include <vtkCamera.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> int main(int, char *[]) { // Create vector text vtkSmartPointer<vtkVectorText> vecText = vtkSmartPointer<vtkVectorText>::New(); vecText->SetText("Text!"); // Apply linear extrusion vtkSmartPointer<vtkLinearExtrusionFilter> extrude = vtkSmartPointer<vtkLinearExtrusionFilter>::New(); extrude->SetInputConnection( vecText->GetOutputPort()); extrude->SetExtrusionTypeToNormalExtrusion(); extrude->SetVector(0, 0, 1 ); extrude->SetScaleFactor (0.5); vtkSmartPointer<vtkTriangleFilter> triangleFilter = vtkSmartPointer<vtkTriangleFilter>::New(); triangleFilter->SetInputConnection(extrude->GetOutputPort()); vtkSmartPointer<vtkDataSetMapper> mapper = vtkSmartPointer<vtkDataSetMapper>::New(); mapper->SetInputConnection(triangleFilter->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); actor->GetProperty()->SetColor(0.8900, 0.8100, 0.3400); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); renderer->SetBackground(.4, .5, .7); renderWindow->AddRenderer(renderer); renderer->AddActor(actor); renderer->ResetCamera(); // Generate an interesting view renderer->ResetCamera(); renderer->GetActiveCamera()->Azimuth(30); renderer->GetActiveCamera()->Elevation(30); renderer->GetActiveCamera()->Dolly(1.0); renderer->ResetCameraClippingRange(); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(LinearExtrusion) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(LinearExtrusion MACOSX_BUNDLE LinearExtrusion.cxx) target_link_libraries(LinearExtrusion ${VTK_LIBRARIES})
Download and Build LinearExtrusion¶
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 LinearExtrusion and its CMakeLists.txt file. Once the tarball LinearExtrusion.tar has been downloaded and extracted,
cd LinearExtrusion/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:
./LinearExtrusion
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.