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
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.