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Forum TrackVis Usage "segmentation error"

"segmentation error"
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7:05 pm
June 3, 2010


asridharan

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posts 4
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Post edited 7:35 pm – June 3, 2010 by asridharan

Hi,

When I try to load some of the images that DTK constructs in TrackVis as my underlay (_v1.nii, etc), the program crashes and gives out a "segmentation fault" error message. But the _fa.nii and _adc.nii seem to work ok. Any ideas how to get around this problem?

Thanks much.

AS

12:31 pm
June 7, 2010


Ruopeng

Admin

posts 114
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Hi,

You're not supposed to load vector images into TrackVis because it will treat it as a scalar map and only display the map of X component, so it's kind of meaningless. However, it should not crash the program. I have filed it as bug and will fix it in the next release.

Thanks,

Ruopeng

3:14 pm
June 11, 2010


asridharan

Member

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Thanks, Ruopeng. So would I use the _e1, etc images to get the respsective lambda values?

Also, I am working with quite a few subjects collecting the mean fa, adc, and e values for quite a few tracks with different combinations of 'any part', 'either end', etc. As I am going through this manually, I am wondering if there is any automated (or semi-automated) way of getting these numbers? Seems like the 'export' option only enables you to export information on one underlay at a time…

Thanks again for your help.

 

8:57 pm
June 14, 2010


Ruopeng

Admin

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Unfortunately, no, there is no way to automate this process Frown
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