Hi Sean,

This is actually documented at https://proj.org/en/9.4/specifications/geodetictiffgrids.html: "Files hosted on the CDN will use Compression <https://www.awaresystems.be/imaging/tiff/tifftags/compression.html> = DEFLATE or LZW" . I've also just verified that the reality matches the documented statement. We only use DEFLATE.

Even

Le 04/04/2024 à 19:43, Sean Gillies via PROJ a écrit :
Hi all,

I'm building some fiona and rasterio binary packages. They include PROJ, and TIFF to get the PROJ grids. On Windows, I'm relying on vcpkg for everything, and currently the liblzma port is broken. If I patch vcpkg to disable liblzma, will my builds be able to access data in the CDN grids?

Thanks,

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Sean Gillies

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