CODEX offsets.json

[ilan-gold]

Now that it is merged, we have hardcoded https://github.com/hubmapconsortium/portal-ui/blob/bcf3a389440640ec9c92f9fb21c8cb949be526eb/context/app/api/vitessce.py#L12 for the offsets.json produced here. I think this is not a stable solution especially for n > 1 datasets. @jswelling Is this something that needs to change here in the cwl or is it on the putting-it-all-together end when you run the cwl?

It seems an output directory is provided here:

portal-containers/ome-tiff-offsets.cwl

Line 6 in 3cec360

baseCommand: ['python', '/main.py', '--output_dir', 'output_offsets', '--input_dir']

CC: @jswelling

[ngehlenborg]

Also paging @mruffalo to see if we can address this with the proposed per-tile directory output structures.