+1 Jason<br><br><div class="gmail_quote">2009/9/8 Dan Stoica <span dir="ltr"><<a href="mailto:dan.stoica@autodesk.com">dan.stoica@autodesk.com</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;">
Hi Frank,<br>
<div class="im"><br>
> Does the FDO SHP driver ensure proper winding order for inner and outer rings when writing shapefiles?<br>
<br>
</div>No, it doesn't. We've discussed here this issue and apparently the best way to do it is via a new capability that tells the preferred ring orientation.<br>
<br>
But this will not solve the problem of reading existing shapes (created via FDO or not) since the orientation is not reliable.<br>
<br>
Thanks,<br>
<font color="#888888">Dan.<br>
</font><div class="im"><br>
<br>
-----Original Message-----<br>
From: <a href="mailto:fdo-internals-bounces@lists.osgeo.org">fdo-internals-bounces@lists.osgeo.org</a> [mailto:<a href="mailto:fdo-internals-bounces@lists.osgeo.org">fdo-internals-bounces@lists.osgeo.org</a>] On Behalf Of Frank Warmerdam<br>
Sent: Tuesday, September 08, 2009 8:09 AM<br>
To: FDO Internals Mail List<br>
</div><div><div></div><div class="h5">Subject: Re: [fdo-internals] Motion: Vote on FDO RFC 38 - SHP multi-polygons<br>
<br>
<br>
> There were no further comments on this RFC:<br>
> <a href="http://trac.osgeo.org/fdo/wiki/FDORfc38" target="_blank">http://trac.osgeo.org/fdo/wiki/FDORfc38</a> - Multi-polygon support for SHP.<br>
><br>
><br>
><br>
> I would like to motion a vote to accept this RFC.<br>
<br>
+1<br>
<br>
---<br>
<br>
On final review I was somewhat concerned about the comment "On input of<br>
geometry, there is no further processing needed as the current code will<br>
save all input loops without checking whether they are outer or inner."<br>
<br>
There is a particular winding order expected in properly produced shapefiles.<br>
Does the FDO SHP driver ensure proper winding order for inner and outer<br>
rings when writing shapefiles?<br>
<br>
Best regards,<br>
--<br>
---------------------------------------+--------------------------------------<br>
I set the clouds in motion - turn up | Frank Warmerdam, <a href="mailto:warmerdam@pobox.com">warmerdam@pobox.com</a><br>
light and sound - activate the windows | <a href="http://pobox.com/%7Ewarmerdam" target="_blank">http://pobox.com/~warmerdam</a><br>
and watch the world go round - Rush | Geospatial Programmer for Rent<br>
<br>
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</div></div></blockquote></div><br>