[vtkusers] i solved It..

[Mathieu Malaterre]

yasser salman wrote:
> hi mathieu/all .., Finaly , i solved my problems ,, thanks for help.,
>  i can read a single slice of Dicom files.., but the image displayed
> from bottom to top!!  , second what a modification of this code can i
> do to read a seires of Dicom slices??
> 
> 
> vtkDICOMImageReader *Reader=vtkDICOMImageReader::New();
> 
> vtkImageViewer2 *viewer = vtkImageViewer2::New(); 
> Reader->SetFilePrefix(VolData_FName); 
> //Reader->SetFilePattern("%s%.1d.dcm"); -----> how can i use it in
> dicom Reader->SetDataByteOrderToLittleEndian(); 
> Reader->SetDataExtent(0,VolData_Width,0,VolData_Height,i,VolData_Images);
>  Reader->SetDataScalarTypeToUnsignedShort(); 
> Reader->SetDataOrigin(0,0,0); Reader->SetDataSpacing(1,1,1);  
> viewer->SetInput(Reader->GetOutput()); ......etc..,
> 

Yasser,
[Please change you ML adress to vtkusers at vtk.org !]

Here is how I use it(*). Please note the use of vtkImageFlip.

	However you are right vtkDICOMImageReader breaks the VTK design. You 
should not have to call vtkImageFlip.

	Furthermore I won't recommend you to use 'SetFilePrefix' for DICOM 
images. In /theory/ the file name depends of the image serie/study 
number. Thus you should use instead:

vtkDICOMImageReader::SetDirectoryName
http://www.vtk.org/doc/nightly/html/classvtkDICOMImageReader.html#a1


HTH
mathieu

(*)
#------------------------------------
import vtk

r = vtk.vtkDICOMImageReader  ()
r.SetFileName( .... )

flipY = vtk.vtkImageFlip ()
flipY.SetInput (r.GetOutput())
flipY.SetFilteredAxis (1)

iren = vtk.vtkRenderWindowInteractor();

viewer = vtk.vtkImageViewer2();
viewer.SetInput ( flipY.GetOutput() );
viewer.SetupInteractor (iren);

iren.Initialize();
iren.Start();
#------------------------------------