[Camino-users] "track" error

[Philip A Cook]

It means there are fewer voxels than expected in one or more of the data files. It's defining the input space from the seed file, so it is looking for an image with those spatial dimensions (X,Y,Z). The number of DWI measurements at each iteration is determined by the scheme file, so if there are N measurements then the input .Bfloat file needs to contain X*Y*Z*N values.

On Oct 29, 2013, at 10:42 AM, Mojdeh Zamyadi <mojdehzm at gmail.com> wrote:

> Hi all,
> 
> Does anyone know what does the following error message from "track" means:
> 
> Oct 29, 2013 10:40:15 AM apps.StreamlineTractography initVariables
> INFO: Defining input physical space from seed file
> Oct 29, 2013 10:40:28 AM misc.LoggedException logException
> SEVERE: Exception in thread "main" class data.DataSourceException: No more voxels in data source.
>     at data.VoxelOrderDataSource.readNextVoxel(VoxelOrderDataSource.java:230)
>     at data.VoxelOrderDataSource.nextVoxel(VoxelOrderDataSource.java:189)
>     at tractography.BayesDiracTractographyImage.getBayesDiracTractographyImage(BayesDiracTractographyImage.java:153)
>     at apps.StreamlineTractography.execute(StreamlineTractography.java:712)
>     at apps.EntryPoint.main(EntryPoint.java:284)
> 
> Exception in thread "main" data.DataSourceException: No more voxels in data source.
>     at data.VoxelOrderDataSource.readNextVoxel(VoxelOrderDataSource.java:230)
>     at data.VoxelOrderDataSource.nextVoxel(VoxelOrderDataSource.java:189)
>     at tractography.BayesDiracTractographyImage.getBayesDiracTractographyImage(BayesDiracTractographyImage.java:153)
>     at apps.StreamlineTractography.execute(StreamlineTractography.java:712)
>     at apps.EntryPoint.main(EntryPoint.java:284)
> 
> 
> 
> This is the command I run which has worked fine with all my other subjects until now!
> track -inputfile DTI_ec_VoxelOrder.Bfloat -inputmodel bayesdirac_dt -schemefile bvec_rot.scheme -iterations 50 -seedfile ../../../DTI_T1_reg/ISC3/mask_final_manualMaskedT1.nii.gz -brainmask ../preproc/B0_brain_mask.nii.gz -pointset 0 > bayesianTracts.Bfloat
> 
> Thanks a lot,
> -Mojdeh 
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