[vtkusers] vtkImagePlaneWidget not shows image on plane

[Héber de Padua Sousa]

Hi!
I need help, please!
I'm working with vtkImagePlaneWidget, but the image is not showing on the
plane.
Where the plane intersect the volume It shows the color white Instead
slice's grayscale texture.
What is the problem?
thanks
this is the code:

 #include "vtkImageData.h"
 #include "vtkImageViewer2.h"
 #include "vtkRenderWindowInteractor.h"
 #include "vtkDICOMImageReader.h"
 #include "vtkVolumeRayCastMapper.h"
#include "vtkRenderWindowInteractor.h"

 #include "vtkVolumeTextureMapper2D.h"
 #include "vtkVolumeTextureMapper3D.h"
#include "vtkVolumeProperty.h"
#include "vtkColorTransferFunction.h"
#include "vtkPiecewiseFunction.h"
#include <vtkImageShiftScale.h>
#include "vtkVolumeRayCastMIPFunction.h"
#include "vtkVolumeRayCastCompositeFunction.h"
#include "vtkCamera.h"
#include "vtkImagePlaneWidget.h"
#include "vtkSmartPointer.h"
#include "vtkLookupTable.h"

 #include "vtkRenderer.h"
#include "vtkRenderWindow.h"

int main()
{

vtkDICOMImageReader *reader = vtkDICOMImageReader :: New();
  reader-> SetDirectoryName("C:/volumes/PulmaoExtraido/25fatias");

  reader->Update();

    double range[2];
         (reader->GetOutput())->GetScalarRange(range);

    double shiftValue = 0;
if(range[0] < 0) shiftValue =(-1)*range[0];
 vtkImageShiftScale *shiftScale = vtkImageShiftScale::New();
shiftScale->SetInput(reader->GetOutput());
 shiftScale->SetScale(1);
shiftScale->SetShift(shiftValue);
shiftScale->ClampOverflowOn();
 shiftScale->SetOutputScalarTypeToUnsignedShort();


vtkRenderer *aRenderer = vtkRenderer::New();

vtkRenderWindow *renWin = vtkRenderWindow::New();
renWin->AddRenderer(aRenderer);

vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow(renWin);

vtkLookupTable* table1 = vtkLookupTable::New();
table1->SetNumberOfTableValues(256);
table1->Build();
double r=0;
double g=0;
double b=0;
int indice;
table1->SetTableValue(0,r/255,g/255,b/255,1.0);
for(int i=1;i<256;i++) {

     r++;
     g++;
     b++;
     indice=i;
     table1->SetTableValue(indice,r/255,g/255,b/255,1.0);
}
table1->SetTableRange(0,1000);
table1->SetAlphaRange(1.0,1.0);

vtkImagePlaneWidget *widget = vtkImagePlaneWidget::New();
 widget->SetLookupTable(table1);
widget->SetInteractor(iren);
widget->TextureVisibilityOn();
 widget->EnabledOn();
widget->SetInput(shiftScale->GetOutput());
widget->SetPlaneOrientationToZAxes();
 widget->PlaceWidget (0, 200, 0, 200, 0, 25);

   aRenderer->SetBackground(0,0.3,0.3);

iren->Initialize();
iren->Start();

reader->Delete();
 aRenderer->Delete();
renWin->Delete();
iren->Delete();
return 0;
}
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