<div dir="ltr">Hi Manuel,<div><br></div><div>I don't use the VTK format at all, but from my limited exposure to it, it seems very wasteful (just ran a quick test: 412MB mrtrix track file -> 1.2GB vtk track file), which might explain why you're ending up with such a large file size. In any case, maybe you can get by with MRView's limited 3D display capabilities? I freely admit that they're very poorly documented, but if you follow these instructions, you might find it's sufficient for your needs:</div>
<div><br></div><div><a href="http://www.nitrc.org/pipermail/mrtrix-discussion/2012-April/000411.html">http://www.nitrc.org/pipermail/mrtrix-discussion/2012-April/000411.html</a><br></div><div><br></div><div>Cheers,</div><div>
Donald.</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 17 March 2014 17:51, Ivan Alvarez <span dir="ltr"><<a href="mailto:ivan.alvarez.11@ucl.ac.uk" target="_blank">ivan.alvarez.11@ucl.ac.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Dear Manuel,<br>
<br>
The size of the file is dependent on how many streamlines you
generated in MRtrix in the first place. Trackvis may have some
built-in limit on the number of streamlines it can render, you may
want to read the Trackvis documentation for that.<br>
<br>
There are a couple of options, TrackVis being the obvious one. You
may also want to consider Paraview (<a href="http://www.paraview.org/" target="_blank">http://www.paraview.org/</a>), but
it's not something I've yet tried. I think someone suggested using
Camino for the file conversion, so it might be worth exploring.<br>
<br>
In the future, please post these questions to the mailing list;
you have a better chance of getting an answer from an expert (ie.
not me) and others can benefit from the answers as well : )<br>
<pre cols="72">Kind regards,
Ivan Alvarez
PhD Candidate
Imaging and Biophysics Unit
UCL Institute of Child Health
30 Guilford Street, London, WC1N 1EH</pre>
On 17/03/14 17:33, Manuel Blesa Cábez wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Dear Ivan,<br>
<br>
I read your response to my doubt on the MRtrix forum. I
converted the image with the script that you told me, but the
converted image is very big (8'1GB) and the trackvis can't open
it. Do you know how to solve it?<br>
<br>
Another question: I want to view the MRtrix images in 3D and I
don't know with is the best program to get a 3D visualisation.
Could you recommend me something? Any help will be grateful.<br>
<br>
Thanks in advance.<br>
<br>
Best regards,<br>
<br>
Manuel Blesa<br>
</div>
</blockquote>
<br>
</div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><b><font color="#990000">Dr J-Donald Tournier (PhD)</font></b><br><div><font color="#990000"><br></font></div><i><font color="#990000">Senior Lecturer, </font></i><i><font color="#990000">Biomedical Engineering</font></i><div>
<i><font color="#990000">Division of Imaging Sciences & Biomedical Engineering<br>King's College London</font></i><div><i><font color="#990000"><br></font></i></div><div><i><font color="#990000"><b style="font-family:Calibri,sans-serif;font-size:15px"><span style="font-size:10pt">A:</span></b><span style="font-family:Calibri,sans-serif;font-size:10pt"> Department of Perinatal Imaging & Health, 1<sup>st</sup> Floor South Wing, St Thomas' Hospital, London. SE1 7EH</span><br>
</font></i></div><div><i><font color="#990000"><b>T:</b> +44 (0)20 7188 7118 ext 53613</font></i></div></div><div><i><font color="#990000"><b>W:</b> <a href="http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering" target="_blank">http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering</a></font></i><br>
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