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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Depending on how your lines are constructed, you might also look to ST_Union or ST_Node to create the nodes for overlapping lines, which you will likely need, then feed that into
ST_Polygonize or ST_BuildArea.
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<div>Best,</div>
<div>Steve<br>
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<span style="font-size:14.0pt; font-family:"Arial","sans-serif"; color:#006C56">Stephen V. Mather<br>
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<div id="divRpF72141" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> postgis-users-bounces@lists.osgeo.org [postgis-users-bounces@lists.osgeo.org] on behalf of Nicolas Ribot [nicolas.ribot@gmail.com]<br>
<b>Sent:</b> Monday, March 11, 2013 9:29 AM<br>
<b>To:</b> PostGIS Users Discussion<br>
<b>Cc:</b> PostGIS Users Discussion<br>
<b>Subject:</b> Re: [postgis-users] Intersecting lines to Polygons<br>
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<div dir="ltr">Hi,
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<div>Look at st_polygonize() and st_buildArea()</div>
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<div style="">Topology can also be of a great help here.</div>
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<div style="">Nicolas</div>
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<div class="gmail_quote">On 11 March 2013 13:13, chlists <span dir="ltr"><<a href="mailto:chlists@me.com" target="_blank">chlists@me.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
Hi list,<br>
<br>
I'd like to combine a global compilation of line data which intersect into a global polygon dataset. ArcGIS has a tool called 'Features to Polygons' which does this in one step for which I have yet to find an equivalent in PostGIS. ST_MakePolygon and ST_Polygon
require closed linestrings. I have simple line features which randomly connect like in the attached screenshot. There are no attributes which describe which polygon a single linestring belongs to. Can this be done easily or does this involve building topologies?
Any pointers much appreciated.<br>
<br>
Thanks,<br>
Chris<br>
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