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<p class="MsoNormal"><span lang="EN-US">xtf is the extension by a format of sidescan sonar data.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This one was picked randomly from a google search
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://www.usna.edu/Users/oceano/pguth/md_help/html/sidescan.htm">https://www.usna.edu/Users/oceano/pguth/md_help/html/sidescan.htm</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:PT">From:</span></b><span lang="EN-US" style="mso-fareast-language:PT"> gdal-dev <gdal-dev-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Even Rouault<br>
<b>Sent:</b> Tuesday, May 17, 2022 10:43 AM<br>
<b>To:</b> Gonzalez Velasquez, Frando Alexis <fagonzalezv@indracompany.com>; gdal-dev@lists.osgeo.org<br>
<b>Cc:</b> Serrano Granados, Yency <yserrano@indracompany.com><br>
<b>Subject:</b> Re: [gdal-dev] Ogrinfo , ogr2ogr file size limits<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Frando,<span style="mso-fareast-language:PT"><o:p></o:p></span></p>
<p>The .xtf extension doens't ring a bell to me. Which OGR driver recognizes such file ? (remove the -q option and look at the beginning of the report of ogrinfo), and what is your GDAL version ?<o:p></o:p></p>
<p>Most OGR drivers work in streaming mode and can handle arbitrary big files, but a few ones have no other choice than ingesting the whole file, in which case there's no workaround apart splitting the file with other tools or buy more RAM<o:p></o:p></p>
<p>Even<o:p></o:p></p>
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<p class="MsoNormal">Le 17/05/2022 à 04:21, Gonzalez Velasquez, Frando Alexis a écrit :<o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US">Hi dev team!</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I am writing to inquire about big files problem,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">We are using the ogrinfo and ogr2ogr executables over small files with success (1 gb max) but with 10 gb files we are experiencing memory problems and and it does not work, is there a file size limit? And if there is
a size limit, is there any strategy to handle this problema and process big files with success ?
</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">For example:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><i><span lang="EN-US">ogrinfo -q -so C:\\tmp\\file.xtf </span>
</i></b><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">When file is 1Gb success ; but when the file is 10gb size the process fails.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Any advice would be appreciated, thanks.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#004254;mso-fareast-language:ES-CO"><img border="0" width="72" height="43" style="width:.75in;height:.4458in" id="Imagen_x0020_10" src="cid:image001.png@01D869DC.48231550" alt="minsait-indra"></span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:12.0pt"><span style="font-size:10.0pt;font-family:"Georgia",serif;color:#004254;mso-fareast-language:ES-CO"> </span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:12.0pt"><span style="font-size:10.0pt;font-family:"Georgia",serif;color:#004254;mso-fareast-language:ES-CO">FRANDO GONZÁLEZ</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-line-height-alt:8.25pt"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#999999;mso-fareast-language:ES-CO">Senior Systems Engineer</span><o:p></o:p></p>
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</span><o:p></o:p></p>
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<pre>_______________________________________________<o:p></o:p></pre>
<pre>gdal-dev mailing list<o:p></o:p></pre>
<pre><a href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a><o:p></o:p></pre>
<pre><a href="https://lists.osgeo.org/mailman/listinfo/gdal-dev">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a><o:p></o:p></pre>
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<pre>-- <o:p></o:p></pre>
<pre><a href="http://www.spatialys.com">http://www.spatialys.com</a><o:p></o:p></pre>
<pre>My software is free, but my time generally not.<o:p></o:p></pre>
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