split vtk polydata through a plane to two polydata - vtk

Question

My idea is simple:
given a vtk polydata and a vtk plane, get two diferent polydata. This polydatas are the division of the original polydata.

Answer 1

Here's one half of a sphere. Flip the plane over (negate the normal) to get the other half.
#include "vtkActor.h"
#include "vtkClipPolyData.h"
#include "vtkPlane.h"
#include "vtkInteractorObserver.h"
#include "vtkInteractorStyleSwitch.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkSphereSource.h"
using namespace std;
int main(int argc, char ** argv) {
vtkSmartPointer<vtkSphereSource> sphere =
vtkSmartPointer<vtkSphereSource>::New();
vtkSmartPointer<vtkClipPolyData> clip =
vtkSmartPointer<vtkClipPolyData>::New();
clip->SetValue(0);
clip->GenerateClippedOutputOn();
clip->SetInputConnection(sphere->GetOutputPort());
vtkSmartPointer<vtkPlane> plane =
vtkSmartPointer<vtkPlane>::New();
//plane->SetNormal(-1.0, 0.0, 0.0);
plane->SetNormal(1.0, 0.0, 0.0);
clip->SetClipFunction (plane);
vtkSmartPointer<vtkPolyDataMapper> polyDataMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
polyDataMapper->SetInputConnection(clip->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(polyDataMapper);
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->SetSize(800,600);
renderWindow->SetWindowName("VTK");
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
renderer->AddActor(actor);
renderWindow->AddRenderer(renderer);
vtkInteractorStyleSwitch * styleSwitch
= vtkInteractorStyleSwitch::SafeDownCast(
renderWindowInteractor->GetInteractorStyle());
if (styleSwitch)
styleSwitch->SetCurrentStyleToTrackballCamera();
renderWindow->Render();
renderWindowInteractor->Start();
}
CMakeLists.txt :
cmake_minimum_required(VERSION 2.6)
project(V)
set(VTK_DIR "VTK_DIR-NOTFOUND"
CACHE PATH "location of VTK libraries" )
set(CMAKE_BUILD_TYPE debug)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(clip clip.cxx)
target_link_libraries(clip ${VTK_LIBRARIES})