dim attribute in References is incorrect for non-Freesurfer surfaces

[tsalo]

What happened?

The reference space dimension check in niworkflows.utils.spaces.Reference only looks at the name of the space to determine if it's 2D (i.e., a surface):

niworkflows/niworkflows/utils/spaces.py

Lines 168 to 169 in 1dc0327

	if self.space.startswith("fs"):
	object.__setattr__(self, "dim", 2)

However, there are a few new templates in templateflow that are surfaces, but don't start with fs.

What command did you use?

from niworkflows.utils.spaces import Reference

print(Reference('fsnative').dim)  # 2
print(Reference('fsaverage').dim)  # 2
print(Reference('fsLR').dim)  # 2
print(Reference('dhcpAsym', spec={"cohort": "42"}).dim)  # 3
print(Reference('dhcpSym', spec={"cohort": "42"}).dim)  # 3
print(Reference('onavg').dim)  # 3

What version of the software are you running?

master (as of 2024/07/23)

How are you running this software?

Local installation ("bare-metal")

Is your data BIDS valid?

Yes

Are you reusing any previously computed results?

No

Please copy and paste any relevant log output.

No response

Additional information / screenshots

No response