[vtkusers] Does VTK support loading MRC files ?

[Lassi Paavolainen]

Hi again,

I just remembered that MRC file actually specifies machine stamp field, it 
just wasn't set on that one mrc file that we had problems. So I made a 
change now that also data type field is checked to have some reasonable 
value and if not then byte ordering is changed. New version available at:
http://bioimagexd.svn.sourceforge.net/viewvc/bioimagexd/bioimagexd/trunk/vtkBXD/Processing/vtkMRCReader.cxx?revision=1691

Cheers,
Lassi

On Tue, 5 Apr 2011, Lassi Paavolainen wrote:

> Hi Marcus and Ashika,
>
> BioImageXD has vtk reader for MRC file format available at:
> http://bioimagexd.svn.sourceforge.net/viewvc/bioimagexd/bioimagexd/trunk/vtkBXD/Processing/vtkMRCReader.cxx?revision=1690
> http://bioimagexd.svn.sourceforge.net/viewvc/bioimagexd/bioimagexd/trunk/vtkBXD/Processing/vtkMRCReader.h?revision=1690
>
> We have used it without problems to read several mrc files. I've only had one 
> file that it currently reads wrongly since vtkMRCReader doesn't handle 
> different byte orderings at the moment. Format itself doesn't specify that, 
> but its easy to conclude that from values read from MRC file. I plan to make 
> that small change to reader soon.
>
> Unfortunately its GPL licensed, but I think we can re-license it as BSD if 
> needed.
>
> Cheers,
> Lassi Paavolainen
>
> On Mon, 4 Apr 2011, Marcus D. Hanwell wrote:
>
>> On Mon, Apr 4, 2011 at 4:36 AM, Ashika Umanga Umagiliya
>> <aumanga at biggjapan.com> wrote:
>>> Greetings all,
>>> I want to load volume data (vtkImageData) from MRC files.
>>> http://en.wikipedia.org/wiki/MRC_(file_format)
>>> Does VTK support this format?
>>> Thank in advace.
>>> 
>> I am not aware of current support, but would certainly be interested
>> in adding support for the format. The spec looks quite
>> straightforward, if you (or someone else) interested in adding this
>> contributed a reader, along with an example file, it looks like it
>> would be quite straightforward to write. I should be able to help in
>> getting it integrated.
>> 
>> I am working with other formats from computational chemistry, but this
>> is not currently in scope for the work I am doing.
>> 
>> Marcus
>> --
>> Marcus D. Hanwell, Ph.D.
>> R&D Engineer, Kitware Inc.
>> (518) 881-4937
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>

-- 
Lassi Paavolainen, M.Sc
Software Engineer, PhD Student in Computer Science
BioImageXD (http://www.bioimagexd.net)
University of Jyväskylä
The Department of Biological and Environmental Science
lassi.paavolainen at jyu.fi