vtkContourWidget 交互

// To setup the ContourWidget and its representation:
#include <vtkContourWidget.h>
#include <vtkProperty.h>
#include <vtkOrientedGlyphContourRepresentation.h>
// To create the geometry:
#include <vtkPolyData.h>
#include <vtkCellArray.h>
#include <vtkPoints.h>
#include <vtkMath.h>
// Usual VTK pipeline elements:
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <iostream>
#include "vtkCommand.h"
#include <vtkPolyDataWriter.h>

class MyContourPointModifyCallBack : public vtkCommand
{
public:
	static MyContourPointModifyCallBack* New()
	{
		return new MyContourPointModifyCal