Sulcal depth as background on nilearn.plotting.plot_surf (by using neuromaps.plotting.plot_surf_template)

[enicolaisen]

Description of issue

Hi!

I am having an issue when plotting the sulcal depth as background in both hemispheres. I am using the argument bg_map=sulc_LR with the correct dimensions ((20484,) for the case of two hemispheres) as confirmed in issue #5167 by the nilearn team. However, when I introduce sulcal depth data for both hemispheres I get an error regarding dimensionality, and when I introduce sulcal depth for only one hemisphere both hemispheres are plotted though incorrectly (for instance, L hemisphere is plotted in both hemispheres). I explained the issue with more detail on the linked issue, so I believe it is not helpful to write it again here, I hope that is fine.

It seems like neuromaps.plotting.plot_surf_template is not passing the bg_map argument correctly to nilearn.plotting.plot_surf? Or could you help me find out what I am doing wrong?

Thanks a lot for your help!

Best regards,
Eliana

Code of Conduct

• I agree to follow the neuromaps Code of Conduct

[Remi-Gau]

not sure of the internals of plot_surf_template but it seems that using some of the SurfaceImage support that was added in nilearn 0.11 could help with this

[Remi-Gau]

@enicolaisen
had a look at the doc string from plot_surf_template and it seems it is not intended to plot both hemispheres (so far) as far as I can tell
so maybe what you intend to do is not (yet) possible

EDIT: I misread the doc string: you passed your data as a tuple and hence both hemisphere should be plotted

it seems the function does not bg_map properly in that case though