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openlayers/files/OpenLayers/Geometry/Polygon-js.html
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<html><head><title>OpenLayers.Geometry.Polygon - OpenLayers</title><link rel="stylesheet" type="text/css" href="../../../styles/main.css"><script language=JavaScript src="../../../javascript/main.js"></script></head><body class=UnframedPage onLoad="NDOnLoad()"><script language=JavaScript><!--
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<table border=0 cellspacing=0 cellpadding=0 width=100%><tr><td class=MenuSection valign=top><!--START_ND_MENU--><div class=MTitle>OpenLayers<div class=MSubTitle>JavaScript Mapping Library</div></div><div class=MEntry><div class=MFile><a href="../../OpenLayers-js.html">OpenLayers</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent4')">OpenLayers</a><div class=MGroupContent id=MGroupContent4><div class=MEntry><div class=MFile><a href="../BaseTypes-js.html">Base Types</a></div></div><div class=MEntry><div class=MFile><a href="../Console-js.html">Console</a></div></div><div class=MEntry><div class=MFile><a href="../Control-js.html">Control.js</a></div></div><div class=MEntry><div class=MFile><a href="../Format-js.html">Format</a></div></div><div class=MEntry><div class=MFile><a href="../Geometry-js.html">Geometry</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent1')">Geometry</a><div class=MGroupContent id=MGroupContent1><div class=MEntry><div class=MFile><a href="Collection-js.html">Collection</a></div></div><div class=MEntry><div class=MFile><a href="MultiLineString-js.html">MultiLineString</a></div></div><div class=MEntry><div class=MFile><a href="MultiPoint-js.html">MultiPoint</a></div></div><div class=MEntry><div class=MFile><a href="Point-js.html">Point</a></div></div><div class=MEntry><div class=MFile id=MSelected>Polygon</div></div></div></div></div><div class=MEntry><div class=MFile><a href="../Layer-js.html">Layer</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent2')">Layer</a><div class=MGroupContent id=MGroupContent2><div class=MEntry><div class=MFile><a href="../Layer/Image-js.html">Image</a></div></div><div class=MEntry><div class=MFile><a href="../Layer/Vector-js.html">Vector</a></div></div><div class=MEntry><div class=MFile><a href="../Layer/WMS-js.html">WMS</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="../Map-js.html">Map</a></div></div><div class=MEntry><div class=MFile><a href="../Marker-js.html">Marker</a></div></div><div class=MEntry><div class=MFile><a href="../Tile-js.html">Tile</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent3')">Tile</a><div class=MGroupContent id=MGroupContent3><div class=MEntry><div class=MFile><a href="../Tile/Image-js.html">Image</a></div></div><div class=MEntry><div class=MFile><a href="../Tile/WFS-js.html">WFS</a></div></div></div></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent5')">Index</a><div class=MGroupContent id=MGroupContent5><div class=MEntry><div class=MIndex><a href="../../../index/General.html">Everything</a></div></div><div class=MEntry><div class=MIndex><a href="../../../index/Classes.html">Classes</a></div></div><div class=MEntry><div class=MIndex><a href="../../../index/Constants.html">Constants</a></div></div><div class=MEntry><div class=MIndex><a href="../../../index/Functions.html">Functions</a></div></div><div class=MEntry><div class=MIndex><a href="../../../index/Properties.html">Properties</a></div></div><div class=MEntry><div class=MIndex><a href="../../../index/Files.html">Files</a></div></div></div></div></div><script language=JavaScript><!--
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<td class=ContentSection valign=top><div class=CClass id=MainTopic><div class=CTopic><h1 class=CTitle><a name="OpenLayers.Geometry.Polygon"></a>OpenLayers.<span class=HB> </span>Geometry.<span class=HB> </span>Polygon</h1><div class=CBody><p class=CParagraph>Polygon is a collection of Geometry.LinearRings.</p><h4 class=CHeading>Inherits from</h4><ul class=CBulletList><li><a href="Collection-js.html#OpenLayers.Geometry.Collection" class=LClass id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">OpenLayers.Geometry.Collection</a></li><li><a href="../Geometry-js.html#OpenLayers.Geometry" class=LClass id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">OpenLayers.Geometry</a></li></ul><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr><td class=SEntrySize><div class=SMain><div class=SEntry><a href="#OpenLayers.Geometry.Polygon" >OpenLayers.<span class=HB> </span>Geometry.<span class=HB> </span>Polygon</a></div></div></td><td class=SDescriptionSize><div class=SMain><div class=SDescription>Polygon is a collection of Geometry.LinearRings.</div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><div class=SIndent1><a href="#OpenLayers.Geometry.Polygon.Functions" >Functions</a></div></div></div></td><td><div class=SGroup><div class=SDescription><div class=SIndent1></div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#OpenLayers.Geometry.Polygon.OpenLayers.Geometry.Polygon" >OpenLayers.<span class=HB> </span>Geometry.<span class=HB> </span>Polygon</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Constructor for a Polygon geometry. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#OpenLayers.Geometry.Polygon.getArea" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">getArea</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Calculated by subtracting the areas of the internal holes from the area of the outer hole.</div></div></div></td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>
<div class=CGroup><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.Polygon.Functions"></a>Functions</h3></div></div>
<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.Polygon.OpenLayers.Geometry.Polygon"></a>OpenLayers.<span class=HB> </span>Geometry.<span class=HB> </span>Polygon</h3><div class=CBody><p class=CParagraph>Constructor for a Polygon geometry.&nbsp; The first ring (this.component[0])is the outer bounds of the polygon and all subsequent rings (this.component[1-n]) are internal holes.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>components</td><td class=CDLDescription>Array({&lt;OpenLayers.Geometry.LinearRing&gt;})</td></tr></table><h4 class=CHeading>Return</h4><p class=CParagraph>{<a href="#OpenLayers.Geometry.Polygon.OpenLayers.Geometry.Polygon" class=LFunction id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">OpenLayers.Geometry.Polygon</a>}</p></div></div></div>
<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Geometry.Polygon.getArea"></a>getArea</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>getArea: function()</td></tr></table></blockquote><p class=CParagraph>Calculated by subtracting the areas of the internal holes from the area of the outer hole.</p><h4 class=CHeading>Return</h4><p class=CParagraph>{float} The area of the geometry</p></div></div></div>
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<div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>getArea: function()</td></tr></table></blockquote>Calculated by subtracting the areas of the internal holes from the area of the outer hole.</div></div><div class=CToolTip id="tt2"><div class=CClass>A Collection is exactly what it sounds like: A collection of different Geometries. </div></div><div class=CToolTip id="tt3"><div class=CClass>A Geometry is a description of a geographic object.</div></div><div class=CToolTip id="tt4"><div class=CFunction>Constructor for a Polygon geometry. </div></div><!--END_ND_TOOLTIPS-->
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