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<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>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.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>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?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Could you start ‘mrview’ and then select “Help” and “OpenGL
info” and report the output here?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Cheers,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ben<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> mrtrix-discussion-bounces@public.nitrc.org
[mailto:mrtrix-discussion-bounces@public.nitrc.org] <b>On Behalf Of </b>Keith
Hulsey<br>
<b>Sent:</b> donderdag 7 oktober 2010 22:50<br>
<b>To:</b> mrtrix-discussion@www.nitrc.org<br>
<b>Subject:</b> [Mrtrix-discussion] error displaying tracks with MRview<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif";color:black'>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.<br>
<br>
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.<br>
<br>
The command I used for generating the tracts was:<br>
streamtrack -seed WM_mask.nii -mask brain_mask.nii SD_PROB dwi_image.nii
tracks.tck<br>
I pasted the output from track_info below.<br>
<br>
I want to try TDI using these images.<br>
<br>
Thanks, Keith<br>
<br>
<br>
Microsoft Windows XP [Version 5.1.2600]<br>
<br>
Y:\MRtrix>track_info -info tracks.tck<br>
track_info [INFO]: WARNING: malformed key/value entry
("max_num_attempts:") in f<br>
ile "tracks.tck" - ignored<br>
track_info [INFO]: error parsing spherical ROI specification
"Y:\MRtrix\WM_mask.<br>
nii" - assuming mask image<br>
track_info [INFO]: error parsing spherical ROI specification
"Y:\MRtrix\dti2cEC_<br>
brain_mask.nii" - assuming mask image<br>
***********************************<br>
Tracks file: "tracks.tck"<br>
count:
10000<br>
init_threshold: 0.2<br>
lmax:
12<br>
max_dist:
200<br>
max_num_tracks: 10000<br>
max_trials: 50<br>
method:
SD_PROB<br>
min_curv:
1<br>
min_dist:
10<br>
no_mask_interp: 0<br>
sh_precomputed: 1<br>
source:
Y:\MRtrix\SH.nii<br>
step_size:
0.2<br>
stop_when_included: 0<br>
threshold:
0.1<br>
total_count: 11067<br>
unidirectional: 0<br>
ROI:
seed Y:\MRtrix\WM_mask.nii<br>
ROI:
mask Y:\MRtrix\dti2cEC_brain_mask.nii<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'><br>
UT Southwestern Medical Center<br>
The future of medicine, today.</span><o:p></o:p></p>
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