VTK系列70_VTK对MHD格式文件单张切片的鼠标滑动提取显示

实例11：基于VTK对MHD格式文件单张切片的鼠标滑动提取显示

#include "vtkAutoInit.h" 
VTK_MODULE_INIT(vtkRenderingOpenGL2);
VTK_MODULE_INIT(vtkInteractionStyle);

#include <vtkSmartPointer.h>
#include <vtkImageReader2.h>
#include <vtkMatrix4x4.h>
#include <vtkImageReslice.h>
#include <vtkLookupTable.h>
#include <vtkImageMapToColors.h>
#include <vtkImageActor.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkCommand.h>
#include <vtkImageData.h>
#include <vtkMetaImageReader.h>
#include <vtkImageCast.h>

class vtkImageInteractionCallback : public vtkCommand
{
public:
    static vtkImageInteractionCallback* New()
    {
        return new vtkImageInteractionCallback;
    }

    vtkImageInteractionCallback()
    {
        this->Slicing = 0;
        this->ImageReslice = 0;
        this->Interactor = 0;
    }

    void SetImageReslice(vtkImageReslice* reslice)
    {
        this->ImageReslice = reslice;
    }

    void SetImageMapToColors(vtkImageMapToColors* mapToColors)
    {
        this->mapToColors = mapToColors;
    }

    vtkImageReslice* GetImageReslice()
    {
        return this->ImageReslice;
    }

    void SetInteractor(vtkRenderWindowInteractor* interactor)
    {
        this->Interactor = interactor;
    }

    vtkRenderWindowInteractor* GetInteractor()
    {
        return this->Interactor;
    }

    virtual void Execute(vtkObject*, unsigned long event, void*)
    {
        vtkRenderWindowInteractor*