vtk二维图像三维显示，Z轴表示灰度

#include "vtkImageDataGeometryFilter.h"

#include "vtkWarpScalar.h"

#include "vtkDICOMImageReader.h"

#include "vtkImageData.h"

#include "vtkRenderWindow.h"

#include "vtkRenderer.h"

#include "vtkPolyDataMapper.h"

#include "vtkRenderWindowInteractor.h"

#include "vtkSmartPointer.h"

#include "vtkActor.h"

int main(int, char *[])

{

vtkSmartPointer dicomReader = vtkSmartPointer::New();

vtkSmartPointer p_w_picpathData = vtkSmartPointer::New();

dicomReader->SetFileName("D:\\Ducments\\VS2008\\FrameClickColor -1\\CT.1.2.840.113619.2.108.3994723703.8049.1137556649.531.dcm");

dicomReader->Update();

p_w_picpathData = dicomReader->GetOutput();

vtkSmartPointer filter = vtkSmartPointer::New();

filter->SetInput(p_w_picpathData);

vtkSmartPointer rape = vtkSmartPointer::New();

rape->SetInput(filter->GetOutput());

rape->SetScaleFactor(0.5);

vtkSmartPointer mapper = vtkSmartPointer::New();

vtkSmartPointer actor = vtkSmartPointer::New();

mapper->SetInput(rape->GetPolyDataOutput());

mapper->SetScalarRange(p_w_picpathData->GetScalarRange());

  actor->SetMapper(mapper);

vtkSmartPointer rewin = vtkSmartPointer::New();

vtkSmartPointer render = vtkSmartPointer::New();

vtkSmartPointer iren = vtkSmartPointer::New();

rewin->AddRenderer(render);

render->AddActor(actor);

iren->SetRenderWindow(rewin);

iren->Initialize();

iren->Start();

}