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
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.