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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi again.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I finally did that and I am happy.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">It would be helpful for us to be able to use our C functions to read and write some parts of our format instead of passing
all of them to C++.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I’d like doing that but it’s not possible for the moment convert all our code to C++.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">My proposal is use a ogrmiramondatasource.cpp, a ogrmiramondriver.cpp and a ogrmiramonlayer.cpp as all of the projects
that are created and add our files from C as necessary.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The main goal is adding only the necessary ones.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The question: Is this possible? Can I simply add C files and use that functions from C++ files? Or do GDAL prefer doing
it in another way?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Sorry if it is written somewhere else but I couldn’t find it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks again for your kind help.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif">De:</span></b><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> gdal-dev <gdal-dev-bounces@lists.osgeo.org>
<b>En nombre de </b>Abel Pau<br>
<b>Enviado el:</b> dimecres, 5 de juliol de 2023 15:13<br>
<b>Para:</b> gdal-dev@lists.osgeo.org<br>
<b>Asunto:</b> Re: [gdal-dev] Instructions for a new writing driver?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks you both!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif">De:</span></b><span lang="ES" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> gdal-dev <<a href="mailto:gdal-dev-bounces@lists.osgeo.org">gdal-dev-bounces@lists.osgeo.org</a>>
<b>En nombre de </b>Even Rouault<br>
<b>Enviado el:</b> dimecres, 5 de juliol de 2023 13:59<br>
<b>Para:</b> <a href="mailto:gdal-dev@lists.osgeo.org">gdal-dev@lists.osgeo.org</a><br>
<b>Asunto:</b> Re: [gdal-dev] Instructions for a new writing driver?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>(resending to list)<o:p></o:p></p>
<p>The CSV driver is actually not that simple to follow since it has tricks to support updates through the OGREditableLayer mechanism. The GMT one (ogr/ogrsf_frmts/gmt) might be a better start for a creation & append only driver. But basically, the only common
thing with your own code will be the fact that you have to implement the 2 virtual methods of interest: OGRLayer::CreateField() ,d OGRLayer::ICreateFeature() and declare a few capabilities in OGRLayer::TestCapability()<o:p></o:p></p>
<p>Unless you want to implement update capabilities (if the format allows it, which is generally not the case for a text based format), it might be simpler to have 2 distinct OGRLayer sub-classes for read-only and write-only operations.<o:p></o:p></p>
<p class="MsoNormal">Even <o:p></o:p></p>
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<p class="MsoNormal">Le 05/07/2023 à 13:21, Laurențiu Nicola via gdal-dev a écrit :<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Hi,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">I think your best bet would be to take inspiration from an existing driver, like the CSV one (which shouldn't be too different from the hypothetical SPF driver in the docs).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Laurentiu<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal">On Wed, Jul 5, 2023, at 14:17, Abel Pau wrote:<o:p></o:p></p>
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<p class="qt-msonormal1"><span lang="EN-US">Hi, following instructions about creating a new driver I found that </span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="ES"><a href="https://gdal.org/tutorials/vector_driver_tut.html"><span style="color:#0563C1">https://gdal.org/tutorials/vector_driver_tut.html</span></a></span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="ES"> </span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="ES"> </span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="EN-US">But I need to create a driver that can also write from any vector it’s own format.</span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="EN-US">So, the inverse sense of the html I found.</span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="EN-US">There is any other place I can follow any instructions to fill all function classes to create this part of the driver (the one that writes it’s own format)?<br>
<br>
Thanks in advance!</span><o:p></o:p></p>
<p class="qt-msonormal1"><span lang="EN-US"> </span><o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<o:p></o:p></p>
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<p class="MsoNormal">gdal-dev mailing list<o:p></o:p></p>
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<p class="MsoNormal"><a href="mailto:gdal-dev@lists.osgeo.org"><span style="color:#0563C1">gdal-dev@lists.osgeo.org</span></a><o:p></o:p></p>
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<p class="MsoNormal"><a href="https://lists.osgeo.org/mailman/listinfo/gdal-dev"><span style="color:#0563C1">https://lists.osgeo.org/mailman/listinfo/gdal-dev</span></a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<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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