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<p class="MsoNormal"><span lang="ES">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">after reading </span><span lang="ES"><a href="https://gdal.org/user/virtual_file_systems.html#vsistdout-standard-output-streaming"><span lang="EN-US">https://gdal.org/user/virtual_file_systems.html#vsistdout-standard-output-streaming</span></a></span><span lang="ES">
</span><span lang="EN-US">I have to say I don’t understand what it means.<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">I which cases it’s used? Some example to consider?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In the driver I have to do something with that?<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">I have, copied from other, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas;color:blue">if</span><span style="font-size:9.5pt;font-family:Consolas;color:black"> (!</span><span style="font-size:9.5pt;font-family:Consolas;color:#6F008A">STARTS_WITH</span><span style="font-size:9.5pt;font-family:Consolas;color:black">(</span><span style="font-size:9.5pt;font-family:Consolas;color:gray">pszFilename</span><span style="font-size:9.5pt;font-family:Consolas;color:black">,
</span><span style="font-size:9.5pt;font-family:Consolas;color:#A31515">"/vsistdout"</span><span style="font-size:9.5pt;font-family:Consolas;color:black">))
</span><span lang="EN-US">and then I open the file as usual.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But, what I have to do if the name starts with that?<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"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">On the other hand, I am confused about the Update concept.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My driver is capable of creating from zero a layer from other formats.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But I haven’t programmed the capacity to insert a feature in a pre-existent layer (I cannot simply add at the end of the file because de format description is a little more complicated).<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">What I do now is<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas;color:black">OGRMiraMonLayer() <-- if Update is true, I open from zero and create a new MiraMon layer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.5pt;font-family:Consolas;color:black">If not, I read the layer.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:CA"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:CA">But, there is something to take in consideration about the capacity of inserting a feature in a pre-existent layer?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:CA">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:CA"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.5pt;font-family:"Arial",sans-serif;color:#003300;mso-fareast-language:CA">Abel Pau Garcia</span></b><span style="font-size:12.0pt;mso-fareast-language:CA">
</span><span style="mso-fareast-language:CA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#669900;mso-fareast-language:CA">GIS developer</span></b><span style="mso-fareast-language:CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#003300;mso-fareast-language:CA"><a href="mailto:a.pau@creaf.uab.cat"><b><span style="color:blue">a.pau@creaf.uab.cat</span></b></a></span><span style="mso-fareast-language:CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#003300;mso-fareast-language:CA">CREAF. Campus UAB. Edifici C. 08193 Bellaterra (Barcelona)</span><span style="mso-fareast-language:CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#999999;mso-fareast-language:CA"><br>
Before printing this electronic message, think about the environment.</span><span style="mso-fareast-language:CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-fareast-language:CA"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="ES"><o:p> </o:p></span></p>
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