<div dir="ltr"><div dir="ltr">Thank you, Even! I've bookmarked the spec.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Apr 4, 2024 at 11:47 AM Even Rouault <<a href="mailto:even.rouault@spatialys.com">even.rouault@spatialys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>Hi Sean,</p>
<p>This is actually documented at
<a href="https://proj.org/en/9.4/specifications/geodetictiffgrids.html" target="_blank">https://proj.org/en/9.4/specifications/geodetictiffgrids.html</a>:
"Files hosted on the CDN will use <a href="https://www.awaresystems.be/imaging/tiff/tifftags/compression.html" target="_blank">Compression</a>
= DEFLATE
or LZW" . I've also just verified that the reality matches the
documented statement. We only use DEFLATE.</p>
<p>Even<br>
</p>
<div>Le 04/04/2024 à 19:43, Sean Gillies via
PROJ a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi all,</div>
<div><br>
</div>
<div>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?</div>
<div><br>
</div>
<div>Thanks,<br>
</div>
</div></blockquote></div>
</blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Sean Gillies</div></div>