Hi Miri,
In Geometry3D you have lots of options to change the axis of your image (see
member funtions here
http://docs.mitk.org/nightly-qt4/classmitk_1_1Geometry3D.html).
You could either use SetIndexToWorldTransform() ... or Compose() to add another
transform...
If you want to save the transformation, I would use mitk::AffineTransform3D or
vtkMatrix4x4. For just a rotation you could also use quaternions
itk::QuaternionRigidTransform or QuaternionTransformType::VnlQuaternionType.
From these types you have also access to the rotation angles.
Good luck with your project!
Best wishes
Anja
--------------
Dipl.-Inform. Anja Groch
German Cancer Research Center (DKFZ)
Div. Medical and Biological Informatics (E130)
Im Neuenheimer Feld 280
69120 Heidelberg, Germany
Email: [email protected]<mailto:[email protected]>
Phone: (+49) 6221/42-3548
Fax: (+49) 6221/42-2345
http://www.dkfz-heidelberg.de/de/mbi/people/Anja_Groch.html
Von: Miri Trope
[mailto:[email protected]]<mailto:[mailto:[email protected]]>
Gesendet: Mittwoch, 18. Juli 2012 11:09
An: Groch, Anja
Cc: mitk-users
Betreff: Re: [mitk-users] Changing the orthogonal axis orientation due to a
surface
Hi Anja,
I appreciate your help.
I guess I've meant to the first option that you suggested. let's say I inserted
one 3d image and one surface (a cylinder) and want to rotate the image's axis
(just one axis, no matter which one) according to the perpendicular plane of
the cylinder.
would you please explain in more detail how to rotate the axis of the image?
what's the right way to save the angle of the required rotation (due to the
cylinder's orthogonal plane) and manipulate the image's axes according to that
angle.
please give me a hand hear ...
Best,
Miri
On Thu, Jul 12, 2012 at 11:14 AM, Groch, Anja
<[email protected]<mailto:[email protected]>> wrote:
Hi Miri,
I'm not really sure, if I got what you really want.
If you want to change the axis of your 3D image according to the cylinder
surface, you just have to get the geometry of the image by
mitk::Geometry3D<http://docs.mitk.org/nightly-qt4/classmitk_1_1Geometry3D.html>*
mitk::BaseData::GetGeometry ( int t = 0) and then change this geometry. More
information you'll find here
http://docs.mitk.org/nightly-qt4/classmitk_1_1Geometry3D.html
If you are still interested in cutting out swiveled slices, we now have the
ExtractSliceFilter merged into the master, which needs as input a geometry as
well, in order to know, which slice should be cut out.
http://docs.mitk.org/nightly-qt4/classmitk_1_1ExtractSliceFilter.html
In either ways you can use the geometry information of your cylinder surface to
determine the geometry needed for your image.
Best
Anja
--------------
Dipl.-Inform. Anja Groch
German Cancer Research Center (DKFZ)
Div. Medical and Biological Informatics (E130)
Im Neuenheimer Feld 280
69120 Heidelberg, Germany
Email: [email protected]<mailto:[email protected]>
Phone: (+49) 6221/42-3548<tel:%28%2B49%29%206221%2F42-3548>
Fax: (+49) 6221/42-2345<tel:%28%2B49%29%206221%2F42-2345>
http://www.dkfz-heidelberg.de/de/mbi/people/Anja_Groch.html
Von: Miri Trope [mailto:[email protected]<mailto:[email protected]>]
Gesendet: Mittwoch, 20. Juni 2012 09:24
An: mitk-users
Betreff: [mitk-users] Changing the orthogonal axis orientation due to a surface
Hi all,
I'll to be more specific and comprehensible now:
How can I change the orthogonal axis orientation due to a surface?
Please take a look at the attached picture: I have an input image and a
cylinder. The upper figures represent before and the lowers after a handy
swivel. I just rotated the red axis to be in a perpendicular position
relatively to the cylinder.
How can I develop a filter that gets those two components (image and surface)
and change the axis's image orientation to be perpendicularly the surface - in
this way I will be able to browse the slices-slice after slice, and watch
exactly what around my cylinder surface.
In the literature it's called: probe eye view.
If you know the answer to my question, please detail as much as you can
(explanation, examples) - I'll very appreciate this.
Best,
Miri
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