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<p>(adding back the list)<br>
</p>
<div class="moz-cite-prefix">Le 25/01/2024 à 20:33, Richard
Greenwood a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CAHBySPbr2ig0A0__J5sBx5CTK_HN9pfaznwynqnB1TdWe_nWnA@mail.gmail.com">
<div dir="ltr">Sounds like an interesting new driver. What
advantages does it have over tile indexes created with
gdaltindex?</div>
</blockquote>
<p>None, since gdaltindex is the nominal way to create a tile index
usable by both the GTI driver and MapServer.<br>
</p>
<blockquote type="cite"
cite="mid:CAHBySPbr2ig0A0__J5sBx5CTK_HN9pfaznwynqnB1TdWe_nWnA@mail.gmail.com">
<div dir="ltr"> Or in what situations would GTI be preferable to
tile indexes? I don't want to miss out on any new goodness!</div>
</blockquote>
<p>GTI was created mostly to serve GDAL needs, in particular users
that used to use XML VRT to create virtual mosaic. XML VRT works
fine, until you try adding 100,000 + tiles into it, where it
becomes huge and slow to load.</p>
<p>The good thing is that a GTI index can now be used nominally by
both GDAL and MapServer.<br>
</p>
<blockquote type="cite"
cite="mid:CAHBySPbr2ig0A0__J5sBx5CTK_HN9pfaznwynqnB1TdWe_nWnA@mail.gmail.com">
<div dir="ltr">
<div><br>
</div>
<div>Thanks,</div>
<div>Rich</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Jan 24, 2024 at
12:30 PM Even Rouault via MapServer-users <<a
href="mailto:mapserver-users@lists.osgeo.org"
moz-do-not-send="true" class="moz-txt-link-freetext">mapserver-users@lists.osgeo.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote">Hi,<br>
<br>
while I'm still thinking to it, I just wanted to mention a new
driver <br>
that has landed into the development version of GDAL,
code-named "GTI", <br>
for GDAL Raster Tile Index ( <a
href="https://gdal.org/drivers/raster/gti.html"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://gdal.org/drivers/raster/gti.html</a>
) <br>
which will be available in the GDAL 3.9 release. This is
basically a <br>
MapServer raster tile index that is recognized as a GDAL
raster, with a <br>
few optional metadata items, typically to declare the target
resolution, <br>
stored in the vector file (typically GeoPackage or
FlatGeoBuf), or <br>
externally in a XML file. This should enhance the
interoperability <br>
between GDAL and MapServer.<br>
<br>
If using MapServer against GDAL 3.9, you could potentially use
such a <br>
tile index as a classic DATA in your mapfile. One nice
enhancement is <br>
that it can also support referencing other tile indexes or
plain rasters <br>
for overviews. Many possibilities to explore.<br>
<br>
Even<br>
<br>
-- <br>
<a href="http://www.spatialys.com" rel="noreferrer"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">http://www.spatialys.com</a><br>
My software is free, but my time generally not.<br>
<br>
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class="moz-txt-link-freetext">MapServer-users@lists.osgeo.org</a><br>
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</blockquote>
</div>
<br>
<div><br>
</div>
<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">Richard W. Greenwood<br>
<a href="http://www.greenwoodmap.com" target="_blank"
moz-do-not-send="true">www.greenwoodmap.com</a></div>
</div>
</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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