Re: [Gdcm2] vtkGDCMImageReader with vtkImageViewer2 and vtkImagePlaneWidget

[Mathieu M. <mat...@gm...>]

Lars,

2010/2/23 Lars Matthäus <lar...@we...>:
> Hi Mathieu,
>
> Do you mean it's working now or has ever been working as expected? (Did
> you commit a fix or not? I don't understand your link.)

I mean it has always been working. The only recent fix I did to
vtkGDCMImageReader was because the vtkatrix4x4 was bogus (the z
component should be filled using the cross product of the 2 first
cosine directions vectors).
Please get gdcm from trunk, and compile gdcmreslice. It will display
an orientation widget, which shows up properly on the image you sent
(a simple AXIAL).

> Maybe I don't understand how to connect gdcm and vtk properly, but
> Ashish and me both had the problem that the vtkGDCMImageReader gave a
> flipped image compared to the vtkDICOMImageReader. As I tried to explain
> in my posts some months ago, I believe this is due to different
> coordinate systems (x,y axes) leading to different z-direction in which
> to append the image slices.

Using  reader->FileLowerLeftOn ?

> I send you an example and some calculations some time ago; could you
> maybe have a look at them again and tell me if and where I'm wrong?

The only thing you sent is a single 2d slice, which as I said does
properly shows up properly. Please try gcmreslice.

2cts
-- 
Mathieu