<pre>Hi,<br>The attach was only the wkt definition of the polygon...<br>Things are gettin a bit clearer now: the polygon is also valid and empty on OGR (so I guess no prob in importing it to geos).<br>I think is outside the scope of this mailing list to tell how Im importing it into OGR, but I ll do it anyway :-)<br>
<br><br> while( (poFeature = poLayer->GetNextFeature()) != NULL )<br> {<br> OGRGeometry *poGeometry;<br> poGeometry = poFeature->GetGeometryRef();<br> <br> if( poGeometry != NULL && wkbFlatten(poGeometry->getGeometryType()) == wkbPolygon ) <br>
{<br> OGRPolygon *poPolygon = (OGRPolygon*) poGeometry;<br> DoStuffWithGEOS()<br> }<br> }<br>Inside DoStuffWithGEOS(), I export it to text and import it (from text) to Geos. I guess this is all working fine cause it works for all the hundreds of polygons that I have, so I guess this one is "special" :-)<br>
I would have to look at it with a bit more detail!!<br>It looks fine in QGis thought...<br><br><a href="http://ladybug.no-ip.org/files/emptyPolygon.png">http://ladybug.no-ip.org/files/emptyPolygon.png</a><br><br> cheers,<br>
Jo<br> <br><br><br>Jo wrote:<br>><i> I just realized the mailing list truncated my last message; here it is<br></i>><i> (without the attach!)<br>
</i><br>Sorry, I didn't see any source code in your message.<br>See how it is archived:<br><br><a href="http://lists.osgeo.org/pipermail/geos-devel/2009-August/004293.html">http://lists.osgeo.org/pipermail/geos-devel/2009-August/004293.html</a><br>
<br>Or you mean polygon.obj attachment?<br><br><a href="http://lists.osgeo.org/pipermail/geos-devel/attachments/20090802/9e51e147/polygon.obj">http://lists.osgeo.org/pipermail/geos-devel/attachments/20090802/9e51e147/polygon.obj</a><br>
<br>Best regards,<br></pre><br><br><div class="gmail_quote">2009/8/2 <span dir="ltr"><<a href="mailto:geos-devel-request@lists.osgeo.org">geos-devel-request@lists.osgeo.org</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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1. (not) Empty geometry (Jo)<br>
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----------------------------------------------------------------------<br>
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Message: 1<br>
Date: Sun, 2 Aug 2009 21:51:41 +0100<br>
From: Jo <<a href="mailto:doublebyte@gmail.com">doublebyte@gmail.com</a>><br>
Subject: [geos-devel] (not) Empty geometry<br>
To: <a href="mailto:geos-devel@lists.osgeo.org">geos-devel@lists.osgeo.org</a><br>
Message-ID:<br>
<<a href="mailto:23ab5f0a0908021351w53233efehdb82784d0c7248aa@mail.gmail.com">23ab5f0a0908021351w53233efehdb82784d0c7248aa@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Skipped content of type multipart/alternative-------------- next part --------------<br>
A non-text attachment was scrubbed...<br>
Name: polygon.wkt<br>
Type: application/octet-stream<br>
Size: 51117 bytes<br>
Desc: not available<br>
Url : <a href="http://lists.osgeo.org/pipermail/geos-devel/attachments/20090802/9e51e147/polygon.obj" target="_blank">http://lists.osgeo.org/pipermail/geos-devel/attachments/20090802/9e51e147/polygon.obj</a><br>
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</blockquote></div><br><br clear="all"><br>-- <br>"#define QUESTION ((bb) || !(bb))" (Shakespeare)<br><br>