#include <vtkSmartPointer.h>
#include <vtkPolyDataReader.h>
#include <vtkXMLPolyDataReader.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>

int main(int argc, char *argv[])
{
    // 데이터를 읽어 들이는 단계
    vtkSmartPointer<vtkPolyDataReader> reader;
    reader = vtkSmartPointer<vtkPolyDataReader>::New();
    reader->SetFileName("input.vtk");
    reader->Update();

    // 렌더링을 위한 단계
    vtkSmartPointer<vtkPolyDataMapper> mapper;
    mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
    mapper->SetInputConnection(reader->GetOutputPort());

    vtkSmartPointer<vtkActor> actor;
    actor = vtkSmartPointer<vtkActor>::New();
    actor->SetMapper(mapper);

    vtkSmartPointer<vtkRenderWindow> renderWindow;
    renderWindow = vtkSmartPointer<vtkRenderWindow>::New();

    vtkSmartPointer<vtkRenderer> renderer;
    renderer = vtkSmartPointer<vtkRenderer>::New();
    renderWindow->AddRenderer(renderer);

    vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor;
    renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
    renderWindowInteractor->SetRenderWindow(renderWindow);

    // 렌더 윈도우에 액터를 추가하고, 렌더링을 시작하는 단계
    renderer->AddActor(actor);
    renderer->SetBackground(0.1, 0.2, 0.4);
    renderWindow->Render();
    renderWindowInteractor->Start();

    return 0;
}