TransformFilter
VTKExamples/Cxx/PolyData/TransformFilter
Description¶
This example stretches an arrow.
Code¶
TransformFilter.cxx
#include <vtkSmartPointer.h> #include <vtkArrowSource.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkTransform.h> #include <vtkTransformFilter.h> int main(int, char *[]) { // Create an arrow. vtkSmartPointer<vtkArrowSource> arrowSource = vtkSmartPointer<vtkArrowSource>::New(); vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New(); transform->Scale(5,1,1); vtkSmartPointer<vtkTransformFilter> transformFilter = vtkSmartPointer<vtkTransformFilter>::New(); transformFilter->SetInputConnection(arrowSource->GetOutputPort()); transformFilter->SetTransform(transform); // Visualize vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(transformFilter->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderer->AddActor(actor); renderer->SetBackground(.2, .3, .4); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(TransformFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(TransformFilter MACOSX_BUNDLE TransformFilter.cxx) target_link_libraries(TransformFilter ${VTK_LIBRARIES})
Download and Build TransformFilter¶
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 Some tarballs may be missing or out-of-date.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 TransformFilter and its CMakeLists.txt file. Once the tarball TransformFilter.tar has been downloaded and extracted,
cd TransformFilter/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:
./TransformFilter
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.