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<p>Hi all,</p>
<p>for those who have monitored the PR tracker lately, you may have
noticed that I've been working in
<a class="moz-txt-link-freetext" href="https://github.com/OSGeo/gdal/pull/3896">https://github.com/OSGeo/gdal/pull/3896</a> for an implementation of a
Zarr driver. This is now feature complete and in a CI ready state.
It follows a different approach than the one proposed in PR #3411
for the reasons I underlined in
<a class="moz-txt-link-freetext" href="https://github.com/OSGeo/gdal/pull/3411#issuecomment-831259626">https://github.com/OSGeo/gdal/pull/3411#issuecomment-831259626</a></p>
<p>I've also filled the RFC template in
<a class="moz-txt-link-freetext" href="https://github.com/OSGeo/gdal/pull/3896#issuecomment-872398856">https://github.com/OSGeo/gdal/pull/3896#issuecomment-872398856</a><br>
</p>
<p>Even</p>
<br>
<div class="moz-cite-prefix">Le 01/02/2021 à 16:45, Sean Gillies a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CAOodmJo_sJs0o5OPi=N2MfwtDkRzjAtUvwW+BZa7HnH9xSUWZA@mail.gmail.com">
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<div>Hi all,</div>
<div><br>
</div>
<div>Also deep in our recent long thread about removing drivers
from GDAL is mention of a new PR for a "zarr" driver.</div>
<div><br>
</div>
<div><a href="https://github.com/OSGeo/gdal/pull/3411"
target="_blank" moz-do-not-send="true">https://github.com/OSGeo/gdal/pull/3411</a></div>
<div><br>
</div>
<div>I'd like to see more discussion of the scope of this work
and plans for future development and support before a zarr
driver is added to GDAL.</div>
<div><br>
</div>
<div>Is the zarr driver not going to support version 2 of the
zarr spec? I that v2 would be difficult to implement as a GDAL
driver as it is extremely flexible and extensible. For
example, I've written custom compressor and storage for use in
a project at work and can't imagine how a driver written in
C++ would understand it.</div>
<div><br>
</div>
<div>Is the zarr driver based on <a
href="https://zarr-specs.readthedocs.io/en/core-protocol-v3.0-dev/protocol/core/v3.0.html"
moz-do-not-send="true">https://zarr-specs.readthedocs.io/en/core-protocol-v3.0-dev/protocol/core/v3.0.html</a>?
That work seems not yet finished. Is it premature to add a
driver to GDAL for a format that isn't yet specified and may
yet be changed? Or should we expect only minor changes at this
point?<br>
</div>
<div><br>
</div>
<div>
<div>-- <br>
<div dir="ltr" data-smartmail="gmail_signature">Sean Gillies</div>
</div>
</div>
</div>
<br>
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</blockquote>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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