How to get allen 2d-top projection atlas from ccfv3?

Hi, I have been doing two-dimensional imaging of the dorsal cortex of mice recently. I see from the paper that the 2D top projection atlas is obtained from ccfv3, but I haven’t worked it out for a long time. Do you have any good ideas?

Same struggle here, did you find out how?

The ccf_streamlines package can create 2D projections out of CCF-registered 3D data and contains files for the top views (along with other 2D projections). Depending on what you’re trying to do, it may contain resources you can use:
https://ccf-streamlines.readthedocs.io/en/latest/