[IGSTK-Users] Visualizing CT Image

[Chris Heath]

Hello all,

I am having trouble visualizing a CT Image and I am not sure what I'm 
doing wrong:

First I add an observer to my CT Image Reader Object:
        
m_ImageReader->AddObserver(igstk::CTImageReader::ImageModifiedEvent(),m_CTImageObserver);

Then, I read the CT Image:
        m_ImageReader->RequestSetDirectory( directoryName );
        m_ImageReader->RequestReadImage();
        m_ImageReader->RequestGetImage();

Then, I create my spatial object and attach it to my spatial object 
representation:
        m_CTImageSpatialObject = m_CTImageObserver->GetCTImage();
        
m_CTImageSpatialObjectRepresentation->RequestSetImageSpatialObject( 
m_ImageSpatialObject );

Then I add my igst2DView object to my fltk widget (Fl_box)
        this->DisplayCTWidget->RequestSetView( ctView );

Then I add my image representation to my view
        ctView->RequestRemoveObject( m_CTImageSpatialObjectRepresentation );
        ctView->RequestAddObject( m_CTImageSpatialObjectRepresentation );

Finally, I set my slice number using the get slice bounds method from 
"FourViewsTrackingWithCT.cxx"
        m_CTImageSpatialObjectRepresentation->RequestSetSliceNumber( 
slice );

My log contains no errors, my CT image is being succesfully read (I can 
view patient name, and my slider sets the correct bounds on the number 
of slices) but I don't see any image.  What am I missing?  Any help 
would be appreciated.

Thanks,
Chris Heath



Christopher C. Heath
Vanderbilt University School of Engineering
christopher.c.heath at vanderbilt.edu