<div dir="ltr">Hi Even,<div><br></div><div>Then in my driver, how do I know if I have to append data to existing dataset, or overwrite existing data, or create a new dataset all together?</div><div><br></div><div>What about -overwrite option?</div><div><br></div><div>Thanks,</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><b>Victor Chernetsky</b></div><div><b><br></b></div><div><div><b><img src="http://www.amigocloud.com/static/homepage/img/e-mail-signature.png" width="96" height="22"><br></b><div><font color="#000000">+1 </font><font color="#000000">(408) 368-4607</font></div><div><a href="mailto:victor@amigocloud.com" style="color:rgb(17,85,204)" target="_blank">victor@amigocloud.com</a><br></div></div></div></div></div></div>
<br><div class="gmail_quote">On Tue, Nov 28, 2017 at 3:15 PM, Even Rouault <span dir="ltr"><<a href="mailto:even.rouault@spatialys.com" target="_blank">even.rouault@spatialys.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
<div style="font-family:'Sans Serif';font-size:9pt;font-weight:400;font-style:normal"><span class="">
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">On mardi 28 novembre 2017 15:00:11 CET Victor Chernetsky wrote:</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">> Hello,</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">> How do I get value/state of a command line option of ogr2ogr. For instance</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">> I want to handle options like -append, -update inside of my DataSource</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">> class? Is there a documentation about it?</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
</span><p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Victor,</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">-append and -update are just ways of operating of ogr2ogr and the drivers are not aware of them. The consequence are just how ogr2ogr use the driver API.</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">* -update: open the dataset in update mode</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">* -append imply -update, and instruct ogr2ogr to reuse exisisting layers instead of erroring out if they exist.</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">In both cases, features will get inserted through ICreateFeature()</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Even</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"> </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">-- </p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Spatialys - Geospatial professional services</p>
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