[Mrtrix-discussion] error displaying tracks with MRview

[Jeurissen Ben]

I have never run the windows version of mrtrix in a virtual machine. I
am guessing your problem could have something to do with
lacking/incomplete opengl support of the video driver used inside your
virtual machine.

 

What virtual machine are you using? Did you enable 3D acceleration in
the VM settings? Did you install additional VM video drivers inside your
VM?

 

Could you start 'mrview' and then select "Help" and "OpenGL info" and
report the output here?

 

Cheers,

Ben

 

 

From: mrtrix-discussion-bounces at public.nitrc.org
[mailto:mrtrix-discussion-bounces at public.nitrc.org] On Behalf Of Keith
Hulsey
Sent: donderdag 7 oktober 2010 22:50
To: mrtrix-discussion at www.nitrc.org
Subject: [Mrtrix-discussion] error displaying tracks with MRview

 

I installed MRtrix v0.2.9 on my virtual machine that uses Windows XP.
When I try to overlay an image with tracks generated using streamtrack
an error occurs which closes MRview.

I generated the spherical harmonic representation of the DWI using
dwi2SH. The original images had 50 directions with b 1000 and 6 b 0
images. Two sets of these made 112 original images per subject.

The command I used for generating the tracts was:
streamtrack -seed WM_mask.nii -mask brain_mask.nii SD_PROB dwi_image.nii
tracks.tck
I pasted the output from track_info below.

I want to try TDI using these images.

Thanks, Keith


Microsoft Windows XP [Version 5.1.2600]

Y:\MRtrix>track_info -info tracks.tck
track_info [INFO]: WARNING: malformed key/value entry
("max_num_attempts:") in f
ile "tracks.tck" - ignored
track_info [INFO]: error parsing spherical ROI specification
"Y:\MRtrix\WM_mask.
nii" - assuming mask image
track_info [INFO]: error parsing spherical ROI specification
"Y:\MRtrix\dti2cEC_
brain_mask.nii" - assuming mask image
***********************************
  Tracks file: "tracks.tck"
    count:                10000
    init_threshold:       0.2
    lmax:                 12
    max_dist:             200
    max_num_tracks:       10000
    max_trials:           50
    method:               SD_PROB
    min_curv:             1
    min_dist:             10
    no_mask_interp:       0
    sh_precomputed:       1
    source:               Y:\MRtrix\SH.nii
    step_size:            0.2
    stop_when_included:   0
    threshold:            0.1
    total_count:          11067
    unidirectional:       0
    ROI:                  seed Y:\MRtrix\WM_mask.nii
    ROI:                  mask Y:\MRtrix\dti2cEC_brain_mask.nii

 

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