PolyDataFilter
VTKExamples/Cxx/Developers/PolyDataFilter
Description¶
This example demonstrates a filter named vtkTestPolyDataFilter that takes a vtkPolyData as input and produces a vtkPolyData as output.
Code¶
PolyDataFilter.cxx
#include <vtkSmartPointer.h> #include "vtkTestPolyDataFilter.h" int main(int, char *[]) { vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint(0.0, 0.0, 0.0); vtkSmartPointer<vtkPolyData> inputPolydata = vtkSmartPointer<vtkPolyData>::New(); inputPolydata->SetPoints(points); std::cout << "Input points: " << inputPolydata->GetNumberOfPoints() << std::endl; vtkSmartPointer<vtkTestPolyDataFilter> filter = vtkSmartPointer<vtkTestPolyDataFilter>::New(); #if VTK_MAJOR_VERSION <= 5 filter->SetInput(inputPolydata); #else filter->SetInputData(inputPolydata); #endif filter->Update(); vtkPolyData* outputPolydata = filter->GetOutput(); std::cout << "Output points: " << outputPolydata->GetNumberOfPoints() << std::endl; return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(PolyDataFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(PolyDataFilter MACOSX_BUNDLE PolyDataFilter.cxx) target_link_libraries(PolyDataFilter ${VTK_LIBRARIES})
Download and Build PolyDataFilter¶
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 Some tarballs may be missing or out-of-date.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 PolyDataFilter and its CMakeLists.txt file. Once the tarball PolyDataFilter.tar has been downloaded and extracted,
cd PolyDataFilter/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:
./PolyDataFilter
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.