openlayers/doc/apidocs/files/OpenLayers/Format-js.html

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   3 <html><head><title>OpenLayers.Format - OpenLayers</title><link rel="stylesheet" type="text/css" href="../../styles/main.css"><script language=JavaScript src="../../javascript/main.js"></script><script language=JavaScript src="../../javascript/searchdata.js"></script></head><body class="ContentPage" onLoad="NDOnLoad()"><script language=JavaScript><!--
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  14 <div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="OpenLayers.Format"></a>OpenLayers.<wbr>Format</h1><div class=CBody><p>Base class for format reading/writing a variety of formats.&nbsp;  Subclasses of OpenLayers.Format are expected to have read and write methods.</p><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr class="SMain"><td class=SEntry><a href="#OpenLayers.Format" >OpenLayers.<wbr>Format</a></td><td class=SDescription>Base class for format reading/writing a variety of formats. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Format.Properties" >Properties</a></td><td class=SDescription></td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Format.externalProjection" >externalProjection</a></td><td class=SDescription>{<a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">OpenLayers.Projection</a>} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Format.internalProjection" >internalProjection</a></td><td class=SDescription>{<a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link2 onMouseOver="ShowTip(event, 'tt1', 'link2')" onMouseOut="HideTip('tt1')">OpenLayers.Projection</a>} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Format.data" >data</a></td><td class=SDescription>{Object} When <a href="#OpenLayers.Format.keepData" class=LProperty id=link3 onMouseOver="ShowTip(event, 'tt2', 'link3')" onMouseOut="HideTip('tt2')">keepData</a> is true, this is the parsed string sent to &lt;read&gt;.</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Format.keepData" >keepData</a></td><td class=SDescription>{Object} Maintain a reference (<a href="#OpenLayers.Format.data" class=LProperty id=link4 onMouseOver="ShowTip(event, 'tt3', 'link4')" onMouseOut="HideTip('tt3')">data</a>) to the most recently read data. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Format.Constructor" >Constructor</a></td><td class=SDescription></td></tr><tr class="SConstructor SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Format.OpenLayers.Format" >OpenLayers.<wbr>Format</a></td><td class=SDescription>Instances of this class are not useful. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Format.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Format.destroy" id=link5 onMouseOver="ShowTip(event, 'tt4', 'link5')" onMouseOut="HideTip('tt4')">destroy</a></td><td class=SDescription>Clean up.</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>
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  16 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.Properties"></a>Properties</h3></div></div>
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  18 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.externalProjection"></a>externalProjection</h3><div class=CBody><p>{<a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link6 onMouseOver="ShowTip(event, 'tt1', 'link6')" onMouseOut="HideTip('tt1')">OpenLayers.Projection</a>} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes.&nbsp; The externalProjection is the projection used by the content which is passed into read or which comes out of write.&nbsp; In order to reproject, a projection transformation function for the specified projections must be available.&nbsp; This support may be provided via proj4js or via a custom transformation function.&nbsp; See {<a href="Projection-js.html#OpenLayers.Projection.addTransform" class=LFunction id=link7 onMouseOver="ShowTip(event, 'tt5', 'link7')" onMouseOut="HideTip('tt5')">OpenLayers.Projection.addTransform</a>} for more information on custom transformations.</p></div></div></div>
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  20 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.internalProjection"></a>internalProjection</h3><div class=CBody><p>{<a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link8 onMouseOver="ShowTip(event, 'tt1', 'link8')" onMouseOut="HideTip('tt1')">OpenLayers.Projection</a>} When passed a externalProjection and internalProjection, the format will reproject the geometries it reads or writes.&nbsp; The internalProjection is the projection used by the geometries which are returned by read or which are passed into write.&nbsp;  In order to reproject, a projection transformation function for the specified projections must be available.&nbsp; This support may be provided via proj4js or via a custom transformation function.&nbsp; See {<a href="Projection-js.html#OpenLayers.Projection.addTransform" class=LFunction id=link9 onMouseOver="ShowTip(event, 'tt5', 'link9')" onMouseOut="HideTip('tt5')">OpenLayers.Projection.addTransform</a>} for more information on custom transformations.</p></div></div></div>
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  22 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.data"></a>data</h3><div class=CBody><p>{Object} When <a href="#OpenLayers.Format.keepData" class=LProperty id=link10 onMouseOver="ShowTip(event, 'tt2', 'link10')" onMouseOut="HideTip('tt2')">keepData</a> is true, this is the parsed string sent to &lt;read&gt;.</p></div></div></div>
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  24 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.keepData"></a>keepData</h3><div class=CBody><p>{Object} Maintain a reference (<a href="#OpenLayers.Format.data" class=LProperty id=link11 onMouseOver="ShowTip(event, 'tt3', 'link11')" onMouseOut="HideTip('tt3')">data</a>) to the most recently read data.&nbsp; Default is false.</p></div></div></div>
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  26 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.Constructor"></a>Constructor</h3></div></div>
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  28 <div class="CConstructor"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.OpenLayers.Format"></a>OpenLayers.<wbr>Format</h3><div class=CBody><p>Instances of this class are not useful.&nbsp;  See one of the subclasses.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object} An optional object with properties to set on the format</td></tr></table><h4 class=CHeading>Valid options</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>keepData</td><td class=CDLDescription>{Boolean} If true, upon &lt;read&gt;, the data property will be set to the parsed object (e.g. the json or xml object).</td></tr></table><h4 class=CHeading>Returns</h4><p>An instance of OpenLayers.Format</p></div></div></div>
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  30 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.Functions"></a>Functions</h3></div></div>
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  32 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Format.destroy"></a>destroy</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>destroy: function()</td></tr></table></blockquote><p>Clean up.</p></div></div></div>
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<div class=MEntry><div class=MFile><a href="Format/WFSCapabilities/v1_1_0-js.html">WFSCapabilities/<wbr>v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Format/WFSDescribeFeatureType-js.html">WFSDescribeFeatureType</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent11')">WFST</a><div class=MGroupContent id=MGroupContent11><div class=MEntry><div class=MFile><a href="Format/WFST-js.html">WFST</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFST/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFST/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFST/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Format/WKT-js.html">WKT</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities-js.html">WMSCapabilities</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent12')">WMSCapabilities</a><div class=MGroupContent id=MGroupContent12><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1-js.html">WMSCapabilities.v1_1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1_0-js.html">WMSCapabilities/<wbr>v1_1_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1_1-js.html">WMSCapabilities/<wbr>v1_1_1</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Format/WMSDescribeLayer-js.html">WMSDescribeLayer</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSDescribeLayer/v1_1-js.html">WMSDescribeLayer.v1_1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSGetFeatureInfo-js.html">WMSGetFeatureInfo</a></div></div><div class=MEntry><div class=MFile><a href="Format/XML-js.html">XML</a></div></div></div></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent15')">Geometry</a><div class=MGroupContent id=MGroupContent15><div class=MEntry><div class=MFile><a href="Geometry-js.html">Geometry</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Collection-js.html">Collection</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Curve-js.html">Curve</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/LinearRing-js.html">LinearRing</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/LineString-js.html">LineString</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/MultiLineString-js.html">MultiLineString</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/MultiPoint-js.html">MultiPoint</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/MultiPolygon-js.html">MultiPolygon</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Point-js.html">Point</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Polygon-js.html">Polygon</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Rectangle-js.html">Rectangle</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent16')">Handler</a><div class=MGroupContent id=MGroupContent16><div class=MEntry><div class=MFile><a href="Handler-js.html">Handler</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Box-js.html">Box</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Click-js.html">Click</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Drag-js.html">Drag</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Feature-js.html">Feature</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Hover-js.html">Hover</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Keyboard-js.html">Keyboard</a></div></div><div class=MEntry><div class=MFile><a href="Handler/MouseWheel-js.html">MouseWheel</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Path-js.html">Path</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Point-js.html">Point</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Polygon-js.html">Polygon</a></div></div><div class=MEntry><div class=MFile><a href="Handler/RegularPolygon-js.html">RegularPolygon</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Icon-js.html">Icon</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent17')">Lang</a><div class=MGroupContent id=MGroupContent17><div class=MEntry><div class=MFile><a href="Lang-js.html">Lang</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ca-js.html">ca</a></div></div><div class=MEntry><div class=MFile><a href="Lang/cs-CZ-js.html">cs-CZ</a></div></div><div class=MEntry><div class=MFile><a href="Lang/da-DK-js.html">da-DK</a></div></div><div class=MEntry><di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  48 <div class=CToolTip id="tt1"><div class=CClass>Class for coordinate transforms between coordinate systems. </div></div><div class=CToolTip id="tt2"><div class=CProperty>{Object} Maintain a reference (data) to the most recently read data. </div></div><div class=CToolTip id="tt3"><div class=CProperty>{Object} When keepData is true, this is the parsed string sent to read.</div></div><div class=CToolTip id="tt4"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>destroy: function()</td></tr></table></blockquote>Clean up.</div></div><div class=CToolTip id="tt5"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>OpenLayers.Projection.addTransform = function(</td><td class=PParameter nowrap>from,</td></tr><tr><td></td><td class=PParameter nowrap>to,</td></tr><tr><td></td><td class=PParameter nowrap>method</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Set a custom transform method between two projections. </div></div><!--END_ND_TOOLTIPS-->
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