8000 Issue when plotting brain surface of ones · Issue #197 · netneurolab/neuromaps · GitHub
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Issue when plotting brain surface of ones #197

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enicolaisen opened this issue Mar 19, 2025 · 0 comments
Open
1 task done

Issue when plotting brain surface of ones #197

enicolaisen opened this issue Mar 19, 2025 · 0 comments

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@enicolaisen
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Description of issue

Hi!

I am trying to plot a brain surface consisting only of ones in order to later test a potential issue with the transformation between spaces. However, I was not able to. I would appreciate any help in order to sort out what I am doing wrong.

This is the code snippet to reproduce the issue:

dataL      = np.ones(163842)
dataL      = dataL.astype(np.float32)
imageL     = nib.gifti.GiftiImage()
gii_dataL  = nib.gifti.GiftiDataArray(dataL)
imageL.add_gifti_data_array(gii_dataL)

giftis     = (imageL,imageL)
plotting.plot_surf_template(giftis, template='fsaverage', density='164k', surf='inflated',cmap='viridis',colorbar=True,hemi=None, data_dir=None, mask_medial=True, threshold=None)

And this is the error I get:

ValueError: x and y arguments to pcolormesh cannot have non-finite values or be of type numpy.ma.MaskedArray with masked values

Could you please help me find out how can I plot a brain surface of ones?

Thanks in advance for your help!

Best,
Eli

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