<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Nicholas,<div><br></div><div>It seems that the fif files lacks some information that FieldTrip assumes to be present. I would say that this can only be caused by the fact that the version of mne_make_source_space you used does not write the triangle area information into the fif file. Could you go to <a href="http://bugzilla.fcdonders.nl">bugzilla.fcdonders.nl</a>, create yourself an account, and file the issue as a bug? Please then also upload the fif-file you mentioned. I'll have a look at it and make the ft_read_headshape function more robust. In the mean time you could comment out line 421. </div><div><br></div><div>Best,</div><div>Jan-Mathijs</div><div><br></div><div><br></div><div><br><div><div>On Dec 10, 2013, at 6:23 PM, Nicholas Heugel wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">I a trying to go through the tutorial for the <ul style="padding:0px;margin:0px 0px 0px 1.5em;line-height:22px;list-style-type:square;color:rgb(99,140,156);font-family:Calibri,Geneva,Arial,Verdana,sans-serif;font-size:15px;text-align:justify">
<li class="" style="padding:0px;margin:0px"><div class="" style="padding:0px;margin:0px;color:rgb(0,0,0)"><a href="http://fieldtrip.fcdonders.nl/tutorial/minimumnormestimate" class="" title="" style="padding:0px;margin:0px;color:rgb(0,136,204);text-decoration:none">Source reconstruction of event-related fields using minimum-norm estimate</a></div>
<div class="" style="padding:0px;margin:0px;color:rgb(0,0,0)"><br></div><div class="" style="padding:0px;margin:0px;color:rgb(0,0,0)">I am able to run everything up to the MNE with no problem, and it seems like the MNE portion works. But when I run the command <span style="background-color:rgb(247,249,250);font-family:Consolas,'Andale Mono',Menlo,Monaco,monospace;font-size:12px;white-space:pre-wrap">bnd = ft_read_headshape('Subject01-oct-6-src.fif', 'format', 'mne_source');</span></div>
<div class="" style="padding:0px;margin:0px;color:rgb(0,0,0)"><span style="background-color:rgb(247,249,250);font-family:Consolas,'Andale Mono',Menlo,Monaco,monospace;font-size:12px;white-space:pre-wrap">and then plot it to visualize the source space. I get the error </span><span style="color:rgb(99,140,156)">Reference to non-existent field 'use_tri_area'.
Error in ft_read_headshape (line 421)
shape.area = [src(1).use_tri_area(:); src(2).use_tri_area(:)];</span></div> I have looked on this site and online and can't find an explanation of what is wrong or how to fix the problem. Any help would be appreciated. I am using an Anatomical MRI scan for the head model analysis, the skull is present and I manually am Identifying the fiducials. Also, a few steps earlier it had me check the white matter segmentation done by Freesurfer and that worked fine and what I get closely resembles the tutorial. So I think the problem is somewhere in the MNE I am just not sure where. Any help would be appreciated. Thank you for your time.<br>
</li></ul><div style="text-align:justify"><font color="#638c9c" face="Calibri, Geneva, Arial, Verdana, sans-serif"><span style="font-size:15px;line-height:22px">Nicholas</span></font></div></div>
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letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Jan-Mathijs Schoffelen, MD PhD </div><div><br></div><div>Donders Institute for Brain, Cognition and Behaviour, <br>Centre for Cognitive Neuroimaging,<br>Radboud University Nijmegen, The Netherlands</div><div><br></div><div>Max Planck Institute for Psycholinguistics,</div><div>Nijmegen, The Netherlands</div><div><br></div><div><a href="mailto:J.Schoffelen@donders.ru.nl">J.Schoffelen@donders.ru.nl</a></div><div>Telephone: +31-24-3614793</div><div><br></div><div><a href="http://www.hettaligebrein.nl">http://www.hettaligebrein.nl</a></div></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></span>
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