<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;background-color:#FFFFFF;font-family:Calibri,Arial,Helvetica,sans-serif;">
<p>Hi all,</p>
<p><br>
</p>
<p>we came accross this in this discussion :</p>
<p><a id="LPlnk632821" href="http://gis.19327.n5.nabble.com/Option-to-output-polygons-in-size-order-tp5878989p5879007.html" class="OWAAutoLink">http://gis.19327.n5.nabble.com/Option-to-output-polygons-in-size-order-tp5878989p5879007.html</a></p>
<p><br>
</p>
<p>The polygons file contains these two rules:<br>
</p>
<p><span>place=island & name=* [0x53 resolution 19] </span></p>
<p></p>
<div>place=islet & name=* [0x53 resolution 20]<br>
</div>
I assume they were added to "catch" small islands within lakes,
<p></p>
<p>but they are producing really large and complex polygons</p>
<p>for islands like the monster mp-relation <span>6038068</span><a id="LPlnk114047" href="https://www.openstreetmap.org/relation/" class="OWAAutoLink"></a></p>
<p>which covers the mainland of the UK.</p>
<p><br>
</p>
<p>According to GPS MapEdit the polygon type 0x53 seems to stand for <br>
</p>
<p>"<span>Sandbank, tidal/mud flat", which might be good for very small</span></p>
<p><span>islands/islets, but makes no sense for really large islands.</span></p>
<p><br>
</p>
<p>What would be missing without the 1st rule, esp. when precompied</p>
<p>sea data is also used?</p>
<p><br>
</p>
<p>I can think of adding more clauses, e.g.</p>
<p><span>place=island & name=* </span>& natural!=coastline ...</p>
<p><span>place=island & name=* </span>& area_size() <= 100000 ...</p>
<p><br>
</p>
<p>Any thoughts?</p>
<p><br>
</p>
<p>Gerd<br>
</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
</div>
</body>
</html>