[Insight-developers] Writing Transforms

[Blezek, Daniel J (Research)]

Vince,

  The intention of the TransformFileWriter is to be able to save and restore any transformation class.  The only contract with the Transform is that it can be completely saved/restored using the Parameters and FixedParameters.  In the case of the B-Spline, the spacing, degree, etc... can easily be encoded into the FixedParameters and restored in the SetFixedParameters call.  This may or may not have been done, I think Lidia Ng was planning to have a look at it when I modified the code that Julian and Steven had originally written.

  If the B-Spline is not being saved / restored correctly, please let me know, and we can look into it.

-dan

-----Original Message-----
From: insight-developers-bounces+blezek=crd.ge.com at itk.org
[mailto:insight-developers-bounces+blezek=crd.ge.com at itk.org]On Behalf
Of Vincent A. Magnotta
Sent: Thursday, September 08, 2005 5:15 PM
To: Insight Developers List
Subject: [Insight-developers] Writing Transforms


I am have been working on an application that will generate a
registration between two image sets using a B-Spline transform. I get
the registration to work, but I would like to save the transform and had
hoped to use the TransformFileWriter. Looking at this class it only
supports transforms that can be completely specified via the
GetParameters / SetParameters and GetFixedParameters /
SetFixedParameters. I believe that there are a number of transforms that
do not necessarily fit this mold and need a generalization of this
class. I am going to look into this some more and think about potential
solutions for a generalization. Suggestions are welcome. I won't be able
to make it to the Tcon tomorrow, but maybe this could be an item for the
following Tcon.

Vince





-- 
Assistant Professor
Department of Radiology
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Iowa City, IA 52242
E-mail: vincent-magnotta at uiowa.edu
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Fax: 319-353-6275
Website: http://www.radiology.uiowa.edu

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