Hi, <br>I&#39;m loading the following polygon layer from a gml file and 
overlay on a Google layer.<br>If I zoom too much Inner and outer border 
swap (in this case there is only a border, but the behaviour is the 
same).<br>Why?<br>I&#39;ve tried with a small polygon (5/6 point) and works 
properly.<br><br>&lt;?xml version=&quot;1.0&quot; encoding=&quot;ISO-8859-1&quot;?&gt;<br>&lt;wfs:FeatureCollection
 xmlns:ms=&quot;<a href="http://mapserver.gis.umn.edu/mapserver">http://mapserver.gis.umn.edu/mapserver</a>&quot; 
xmlns:wfs=&quot;<a href="http://www.opengis.net/wfs">http://www.opengis.net/wfs</a>&quot; 
xmlns:gml=&quot;<a href="http://www.opengis.net/gml">http://www.opengis.net/gml</a>&quot; 
xmlns:ogc=&quot;<a href="http://www.opengis.net/ogc">http://www.opengis.net/ogc</a>&quot; 
xmlns:xsi=&quot;<a href="http://www.w3.org/2001/XMLSchema-instance">http://www.w3.org/2001/XMLSchema-instance</a>&quot; 
xsi:schemaLocation=&quot;<a href="http://www.opengis.net/wfs">http://www.opengis.net/wfs</a> 
<a href="http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd">http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd</a>                        
 <a href="http://mapserver.gis.umn.edu/mapserver">http://mapserver.gis.umn.edu/mapserver</a> 
<a href="http://aneto.oco/cgi-bin/worldwfs?SERVICE=WFS&amp;amp;VERSION=1.0.0&amp;amp;REQUEST=DescribeFeatureType&amp;amp;TYPENAME=polygon&amp;amp;OUTPUTFORMAT=XMLSCHEMA">http://aneto.oco/cgi-bin/worldwfs?SERVICE=WFS&amp;amp;VERSION=1.0.0&amp;amp;REQUEST=DescribeFeatureType&amp;amp;TYPENAME=polygon&amp;amp;OUTPUTFORMAT=XMLSCHEMA</a>&quot;&gt;<br>
   
 &lt;gml:featureMember&gt;    <br>        &lt;gml:Polygon&gt;<br>           
 &lt;gml:innerBoundaryIs&gt;<br>              &lt;gml:LinearRing&gt;<br>               
 &lt;gml:coordinates&gt;<br>11.626857883301,42.911149016113 
11.634754306641,42.90908907959 11.644024020996,42.914925566406 
11.664280063477,42.914582243652 11.679386264648,42.917672148437 
11.703762180176,42.916298857422 11.71200192627,42.919388762207 
11.719898349609,42.924195280762 11.720241672363,42.919045439453 
11.719898349609,42.913895598145 11.723331577148,42.910462370605 
11.723674899902,42.90737246582 11.731914645996,42.90290927002 
11.731914645996,42.898789396973 11.729511386719,42.89501284668 
11.725734836426,42.891236296387 11.72607815918,42.887803068848 
11.731571323242,42.878190031738 11.739811069336,42.87132357666 
11.744617587891,42.864113798828 11.749080783691,42.856217375488 
11.748394138184,42.848320952148 11.750797397461,42.841797819824 
11.749767429199,42.83355807373 11.74633420166,42.83699130127 
11.742900974121,42.835618010254 11.712688571777,42.863770476074 
11.676296359863,42.853127470703 11.660846835937,42.86342715332 
11.655353671875,42.863770476074 11.636127597656,42.858277312012 
11.624454624023,42.86514376709 11.624454624023,42.868920317383 
11.619991428223,42.881279936523 11.623424655762,42.887459746094 
11.625141269531,42.889519682617 11.625827915039,42.902222624512 
11.626857883301,42.911149016113<br>                
&lt;/gml:coordinates&gt;<br>              &lt;/gml:LinearRing&gt;<br>           
 &lt;/gml:innerBoundaryIs&gt;<br>          &lt;/gml:Polygon&gt;<br>    
&lt;/gml:featureMember&gt;<br>&lt;/wfs:FeatureCollection&gt;<br>