[vtkusers] Using vtkImagePlaneWidget

[raluca ancuta oprisa]

Hello! 
I am new to vtk, and im currently trying to display the images coresponding to 3 
vtkImagePlaneWidget, as coronal, axial and sagittal view. I have the volume, i 
set the plans, i can move them, but in those 3 panels where the inside sections 
of the volume should be, there is nothing. I tried to make the panels as 
vtkPanel, then vtkCanvas, but nothing works.
Here is the code im using:

vtkImageData imagineX;
imagineX=planeWidgetX.GetResliceOutput();
vtkLookupTable bwLut = 
bwLut.SetTableRange(0,2000);
bwLut.SetSaturationRange(0.0, 0.0);
bwLut.SetHueRange(0, 0);
bwLut.SetValueRange(0,1);
bwLut.SetRampToLinear();
bwLut.Build();
vtkImageMapToColors colormap =newvtkLookupTable();newvtkImageMapToColors(); // 
stabilirea tabelei de culoricolormap.SetLookupTable(bwLut);
colormap.SetInput(imagineX);
colormap.SetOutputFormatToLuminance();vtkImageActor c1Actor=newvtkImageActor(); 
// actor pentru 
slice//c1Actor.PickableOff();c1Actor.SetInput(colormap.GetOutput());
pan1.GetRenderer().AddActor(c1Actor);
 
,....Where pan1 is vtkCanvas. I tried also vtkPanel but no result as i expected. 
Please if someone can help me, i really dont have any clue why i see just a 
black image, when the planWidgetX is initially put inside the volume. Thank you 
very much!