<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">You might find this useful too<div><br></div><div><a href="http://blog.cleverelephant.ca/2010/11/removing-complexities.html">http://blog.cleverelephant.ca/2010/11/removing-complexities.html</a></div><div><br></div><div>Best,</div><div><br><div apple-content-edited="true">
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font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; 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"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="color: rgb(0, 0, 0); "><div style="color: rgb(0, 0, 0); "><div style="font-size: medium; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; 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">+1 347 320 7715</span></div><div style="font-size: medium; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="font-size: 10px; "><br></span></div><font class="Apple-style-span" size="2"><a href="http://www.cartodb.com/">www.cartodb.com</a></font></div><div style="color: rgb(0, 0, 0); "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><font class="Apple-style-span" size="2">Map, analyze and build applications with your data</font></div><div><font class="Apple-style-span" size="2"><br></font></div></div></div></span></div></div></div></div></span></div></div></div></span></div></div></div></div></span></div></span></div></span></div></span></div></span></span></div></div></div></div></span></div></div></div></div></span></div></span></div></div></div></span></div></div></div></div></span></div></div></div></span></div></div></div></div></span></div></span></div></span></div></span></div></span></div><br class="Apple-interchange-newline">
</div>
<br><div><div>On Jan 14, 2013, at 4:56 AM, Muhammad Imran wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font: inherit;"><br>Hi Gaurav,<br><br>You can try the following query,<br><br><pre class="programlisting">SELECT gid, ST_Collect(ST_ExteriorRing(the_geom)) AS erings
FROM (SELECT gid, (ST_Dump(the_geom)).geom As the_geom
FROM sometable) As foo
GROUP BY gid;
--3d Example
SELECT ST_AsEWKT(
ST_ExteriorRing(
ST_GeomFromEWKT('POLYGON((0 0 1, 1 1 1, 1 2 1, 1 1 1, 0 0 1))')
)
);<br><br>regards<br>- Imran<br></pre><br>--- On <b>Mon, 1/14/13, Gaurav Singh <i><<a href="mailto:singh09721@itc.nl">singh09721@itc.nl</a>></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"><br>From: Gaurav Singh <<a href="mailto:singh09721@itc.nl">singh09721@itc.nl</a>><br>Subject: [postgis-users] merging islands with state to create single multipoly geom<br>To: "<a href="mailto:postgis-users@postgis.refractions.net">postgis-users@postgis.refractions.net</a>" <<a href="mailto:postgis-users@postgis.refractions.net">postgis-users@postgis.refractions.net</a>><br>Cc: "<a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a>" <<a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a>><br>Date: Monday, January 14, 2013, 5:54 PM<br><br><div id="yiv92693965"><style><!--
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--></style><div><div class="yiv92693965WordSection1"><p class="yiv92693965MsoNormal">Hi All,</p><div> <br class="webkit-block-placeholder"></div><p class="yiv92693965MsoNormal">I have a multipologon geometry of a state with islands as shown in attached Fig1 and I want to convert that state boundary by merging the islands and filling the gaps as shown in Fig2. Can someone please tell me how can I get the Fig2.</p><div> <br class="webkit-block-placeholder"></div><p class="yiv92693965MsoNormal">Thanks </p><p class="yiv92693965MsoNormal">Gaurav </p></div></div></div><br>-----Inline Attachment Follows-----<br><br><div class="plainMail">_______________________________________________<br>postgis-users mailing list<br><a ymailto="mailto:postgis-users@lists.osgeo.org" href="x-msg://442/mc/compose?to=postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a><br><a href="http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users" target="_blank">http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users</a><br></div></blockquote></td></tr></tbody></table>_______________________________________________<br>postgis-users mailing list<br><a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a><br>http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users<br></blockquote></div><br></div></body></html>