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<p>Aryan,</p>
<p>You likely need to register the drivers with GDALAllRegister():
<a class="moz-txt-link-freetext" href="https://gdal.org/tutorials/vector_api_tut.html#reading-from-ogr">https://gdal.org/tutorials/vector_api_tut.html#reading-from-ogr</a></p>
<p>Even<br>
</p>
<div class="moz-cite-prefix">Le 19/01/2023 à 13:23, Aryan Landi a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:C1D6F458-FDCA-41E3-8728-BC2FAB84A249@trelleborg.com">
<span class="">Hi all,</span>
<div class=""><br class="">
</div>
<div class="">I am unable to use the GDAL/OGR S57 driver to parse
s57 charts. According to the official tutorial at <a
href="https://ddec1-0-en-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3a%2f%2fgdal.org%2ftutorials%2fvector%5fapi%5ftut.html&umid=13d2fd67-3eca-462f-840d-c2d3dbebac5c&auth=b6670b9751c5c90ededae23711566d84a7ddb070-2fb38fd794274bb72553fe7321f02a983f2a6600"
class="" moz-do-not-send="true">https://gdal.org/tutorials/vector_api_tut.html</a>,
I should be able to do something like:</div>
<div class=""><br class="">
</div>
<div class="">
<pre class=""><span class="n">GDALDataset</span><span class="w"> </span><span class="o">*</span><span class="n">poDS</span><span class="p">;</span>
<span class="n">poDS</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="n">GDALDataset</span><span class="o">*</span><span class="p">)</span><span class="w"> </span><span class="n">GDALOpenEx</span><span class="p">(</span><span class="w"> </span><span class="s">“s57Chart.000"</span><span class="p">,</span><span class="w"> </span><span class="n">GDAL_OF_VECTOR</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="p">,</span><span class="w"> </span><span class="nb">NULL</span><span class="w"> </span><span class="p">);</span></pre>
<div class=""><br class="">
</div>
</div>
<div class="">However, poDS becomes NULL. On further
investigation, invoking the gdalinfo command on a file returns </div>
<div class=""><br class="">
</div>
<div class="">
<div class="">
<span class="">ERROR 4: `s57Chart.000' not recognized as a
supported file format.</span></div>
<div class="">
<span class="">gdalinfo failed - unable to open
’s57Chart.000’.</span></div>
</div>
<div class="">
<span class=""><br class="">
</span></div>
<div class="">
<span class="">If I use the ogrinfo command, the result is
correct.</span></div>
<div class="">
<span class=""><br class="">
</span></div>
<div class="">
<span class="">So it seems that GDALOpenEx is unable to locate
the correct driver, which is shipped with GDAL.</span></div>
<div class="">
<span class=""><br class="">
</span></div>
<div class="">
<span class="">Anyone who knows how to parse a s57 chart using
GDAL 3.7?</span></div>
<div class="">
<span class=""><br class="">
</span></div>
<div class="">
<span class="">Best regards,</span></div>
<div class="">
<span class=""><br class="">
</span></div>
<div class="">
<span class="">Aryan Mohammadi Landi.</span></div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
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My software is free, but my time generally not.</pre>
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