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<p dir="auto">Kristoffer, Oula,</p>
<p dir="auto">OK, I think that clears it up for me, thanks to you both!</p>
<p dir="auto">I'll change Brainsight to always invoke SimNIBS with a .ccd file, and never a .nii file.</p>
<p dir="auto">If I might suggest, you way want to:</p>
<ol>
<li>just remove <code style="margin: 0 0; padding: 0 0.25em; border-radius: 3px; background-color: #F7F7F7;">Magstim_70mm_Fig8.nii.gz</code> too, as it's the only one left anymore.</li>
<li>update your docs regarding the choice and difference between ccd and nii.</li>
</ol>
<p dir="auto">Cheers,</p>
<p dir="auto">Sean</p>
<p dir="auto">On 8 Feb 2023, at 14:03, Kristoffer Madsen wrote:</p>
</div><div class="plaintext" style="white-space: normal;"><blockquote style="margin: 0 0 5px; padding-left: 5px; border-left: 2px solid #777777; color: #777777;"><p dir="auto">Indeed we did remove the file on purpose mainly just for reducing the
<br>
size of the distribution. The comment regarding preferring .nii.gz
<br>
over .ccd files is somewhat outdated. You will still obtain faster
<br>
stimulations using the .nii.gz files, however the result should be the
<br>
same (or rather extremely similar). The .nii.gz is actually generated
<br>
based on the .ccd file and you can basically recreate the .nii.gz file
<br>
by running the simnibs command "ccd2nifti -i
<br>
legacy_and_other/MagVenture_MC_B70.ccd" I think this file should be
<br>
the same as the old one except for potential numerical precision which
<br>
may differ slightly across platforms and operating systems. If you
<br>
need to "exactly" reproduce the .nii.gz coil you can just use the old
<br>
file if you like.</p>
<p dir="auto">I hope this answer is sufficient to address your question, otherwise
<br>
let me know, Best,
<br>
Kristoffer</p>
<p dir="auto">On Wed, 8 Feb 2023 at 16:53, Sean McBride <sean@rogue-research.com> wrote:</p>
<blockquote style="margin: 0 0 5px; padding-left: 5px; border-left: 2px solid #777777; border-left-color: #999999; color: #999999;"><p dir="auto">Hi all,</p>
<p dir="auto">In my SimNIBS 3.2.5 installation, there are the following files (with md5 checksum):</p>
<p dir="auto">ccd-files/Magstim_70mm_Fig8.ccd) = 7054f818a041612c613e8c5ad73a37ec
<br>
ccd-files/Magstim_70mm_Fig8.nii.gz) = fc3cbf340b2d7e68e67ecb52a2e7b110
<br>
ccd-files/MagVenture_MC_B70.ccd) = ad5597208f6c3d1a301efa2267f4cf73
<br>
ccd-files/MagVenture_MC_B70.nii.gz) = 4159ab1bef77ecc2f2cece25d909be0a</p>
<p dir="auto">In my 4.0 installation, there are:</p>
<p dir="auto">legacy_and_other/Magstim_70mm_Fig8.ccd) = 7054f818a041612c613e8c5ad73a37ec
<br>
legacy_and_other/Magstim_70mm_Fig8.nii.gz) = fc3cbf340b2d7e68e67ecb52a2e7b110
<br>
legacy_and_other/MagVenture_MC_B70.ccd) = ad5597208f6c3d1a301efa2267f4cf73</p>
<p dir="auto">It looks like MagVenture_MC_B70.nii.gz is missing. Was it removed deliberately? The docs say that the .nii.gz files should be preferred over the .ccd files [1], so I find this suspicious. I appreciate that it's "legacy", but still...</p>
<p dir="auto">[1] <a href="https://simnibs.github.io/simnibs/build/html/documentation/sim_struct/tmslist.html" style="color: #999999;">https://simnibs.github.io/simnibs/build/html/documentation/sim_struct/tmslist.html</a></p>
<p dir="auto">Thanks,</p>
<p dir="auto">Sean</p>
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