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14 <div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo"></a>OpenLayers.<wbr>Control.<wbr>WMSGetFeatureInfo</h1><div class=CBody><p>The WMSGetFeatureInfo control uses a WMS query to get information about a point on the map. The information may be in a display-friendly format such as HTML, or a machine-friendly format such as GML, depending on the server’s capabilities and the client’s configuration. This control handles click or hover events, attempts to parse the results using an OpenLayers.Format, and fires a ‘getfeatureinfo’ event with the click position, the raw body of the response, and an array of features if it successfully read the response.</p><h4 class=CHeading>Inherits from</h4><ul><li><a href="../Control-js.html#OpenLayers.Control" class=LClass id=link18 onMouseOver="ShowTip(event, 'tt18', 'link18')" onMouseOut="HideTip('tt18')">OpenLayers.Control</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 class="SMain"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo" >OpenLayers.<wbr>Control.<wbr>WMSGetFeatureInfo</a></td><td class=SDescription>The WMSGetFeatureInfo control uses a WMS query to get information about a point on the map. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.Properties" >Properties</a></td><td class=SDescription></td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.hover" >hover</a></td><td class=SDescription>{Boolean} Send GetFeatureInfo requests when mouse stops moving. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.maxFeatures" >maxFeatures</a></td><td class=SDescription>{Integer} Maximum number of features to return from a WMS query. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.layers" >layers</a></td><td class=SDescription>{Array(<a href="../Layer/WMS-js.html#OpenLayers.Layer.WMS" class=LClass id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">OpenLayers.Layer.WMS</a>)} The layers to query for feature info. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.queryVisible" >queryVisible</a></td><td class=SDescription>{Boolean} If true, filter out hidden layers when searching the map for layers to query. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.url" >url</a></td><td class=SDescription>{String} The URL of the WMS service to use. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.layerUrls" >layerUrls</a></td><td class=SDescription>{Array(String)} Optional list of urls for layers that should be queried. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.infoFormat" >infoFormat</a></td><td class=SDescription>{String} The mimetype to request from the server</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.vendorParams" >vendorParams</a></td><td class=SDescription>{Object} Additional parameters that will be added to the request, for WMS implementations that support them. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.format" >format</a></td><td class=SDescription>{<a href="../Format-js.html#OpenLayers.Format" class=LClass id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">OpenLayers.Format</a>} A format for parsing GetFeatureInfo responses. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.formatOptions" >formatOptions</a></td><td class=SDescription>{Object} Optional properties to set on the format (if one is not provided in the <a href="#OpenLayers.Control.WMSGetFeatureInfo.format" class=LProperty id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">format</a> property.</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.handlerOptions" >handlerOptions</a></td><td class=SDescription>{Object} Additional options for the handlers used by this control, e.g.</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.handler" >handler</a></td><td class=SDescription>{Object} Reference to the <a href="../Handler-js.html#OpenLayers.Handler" class=LClass id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">OpenLayers.Handler</a> for this control</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.hoverRequest" >hoverRequest</a></td><td class=SDescription>{<a href="../Request-js.html#OpenLayers.Request" class=LClass id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">OpenLayers.Request</a>} contains the currently running hover request (if any).</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.Constants" >Constants</a></td><td class=SDescription></td></tr><tr class="SConstant SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.EVENT_TYPES" >EVENT_TYPES</a></td><td class=SDescription></td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.Constructor" >Constructor</a></td><td class=SDescription></td></tr><tr class="SConstructor SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.OpenLayers.Control.WMSGetFeatureInfo" ><OpenLayers.<wbr>Control.<wbr>WMSGetFeatureInfo></a></td><td class=SDescription></td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.activate" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">activate</a></td><td class=SDescription>Activates the control.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.deactivate" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">deactivate</a></td><td class=SDescription>Deactivates the control.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.getInfoForClick" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">getInfoForClick</a></td><td class=SDescription>Called on click</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.getInfoForHover" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">getInfoForHover</a></td><td class=SDescription>Pause callback for the hover handler</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.cancelHover" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">cancelHover</a></td><td class=SDescription>Cancel callback for the hover handler</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.findLayers" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">findLayers</a></td><td class=SDescription>Internal method to get the layers, independent of whether we are inspecting the map or using a client-provided array</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.urlMatches" id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">urlMatches</a></td><td class=SDescription>Test to see if the provided url matches either the control <a href="#OpenLayers.Control.WMSGetFeatureInfo.url" class=LProperty id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">url</a> or one of the <a href="#OpenLayers.Control.WMSGetFeatureInfo.layerUrls" class=LProperty id=link14 onMouseOver="ShowTip(event, 'tt14', 'link14')" onMouseOut="HideTip('tt14')">layerUrls</a>.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.request" id=link15 onMouseOver="ShowTip(event, 'tt15', 'link15')" onMouseOut="HideTip('tt15')">request</a></td><td class=SDescription>Sends a GetFeatureInfo request to the WMS</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.handleResponse" id=link16 onMouseOver="ShowTip(event, 'tt16', 'link16')" onMouseOut="HideTip('tt16')">handleResponse</a></td><td class=SDescription>Handler for the GetFeatureInfo response.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Control.WMSGetFeatureInfo.setMap" id=link17 onMouseOver="ShowTip(event, 'tt17', 'link17')" onMouseOut="HideTip('tt17')">setMap</a></td><td class=SDescription>Set the map property for the control.</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>
16 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.Properties"></a>Properties</h3></div></div>
18 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.hover"></a>hover</h3><div class=CBody><p>{Boolean} Send GetFeatureInfo requests when mouse stops moving. Default is false.</p></div></div></div>
20 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.maxFeatures"></a>maxFeatures</h3><div class=CBody><p>{Integer} Maximum number of features to return from a WMS query. This sets the feature_count parameter on WMS GetFeatureInfo requests.</p></div></div></div>
22 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.layers"></a>layers</h3><div class=CBody><p>{Array(<a href="../Layer/WMS-js.html#OpenLayers.Layer.WMS" class=LClass id=link19 onMouseOver="ShowTip(event, 'tt1', 'link19')" onMouseOut="HideTip('tt1')">OpenLayers.Layer.WMS</a>)} The layers to query for feature info. If omitted, all map WMS layers with a url that matches this <a href="#OpenLayers.Control.WMSGetFeatureInfo.url" class=LProperty id=link20 onMouseOver="ShowTip(event, 'tt13', 'link20')" onMouseOut="HideTip('tt13')">url</a> or <layerUrl> will be considered.</p></div></div></div>
24 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.queryVisible"></a>queryVisible</h3><div class=CBody><p>{Boolean} If true, filter out hidden layers when searching the map for layers to query. Default is false.</p></div></div></div>
26 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.url"></a>url</h3><div class=CBody><p>{String} The URL of the WMS service to use. If not provided, the url of the first eligible layer will be used.</p></div></div></div>
28 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.layerUrls"></a>layerUrls</h3><div class=CBody><p>{Array(String)} Optional list of urls for layers that should be queried. This can be used when the layer url differs from the url used for making GetFeatureInfo requests (in the case of a layer using cached tiles).</p></div></div></div>
30 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.infoFormat"></a>infoFormat</h3><div class=CBody><p>{String} The mimetype to request from the server</p></div></div></div>
32 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.vendorParams"></a>vendorParams</h3><div class=CBody><p>{Object} Additional parameters that will be added to the request, for WMS implementations that support them. This could e.g. look like</p><blockquote><pre>{
34 }</pre></blockquote></div></div></div>
36 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.format"></a>format</h3><div class=CBody><p>{<a href="../Format-js.html#OpenLayers.Format" class=LClass id=link21 onMouseOver="ShowTip(event, 'tt2', 'link21')" onMouseOut="HideTip('tt2')">OpenLayers.Format</a>} A format for parsing GetFeatureInfo responses. Default is <a href="../Format/WMSGetFeatureInfo-js.html#OpenLayers.Format.WMSGetFeatureInfo" class=LClass id=link22 onMouseOver="ShowTip(event, 'tt19', 'link22')" onMouseOut="HideTip('tt19')">OpenLayers.Format.WMSGetFeatureInfo</a>.</p></div></div></div>
38 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.formatOptions"></a>formatOptions</h3><div class=CBody><p>{Object} Optional properties to set on the format (if one is not provided in the <a href="#OpenLayers.Control.WMSGetFeatureInfo.format" class=LProperty id=link23 onMouseOver="ShowTip(event, 'tt3', 'link23')" onMouseOut="HideTip('tt3')">format</a> property.</p></div></div></div>
40 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.handlerOptions"></a>handlerOptions</h3><div class=CBody><p>{Object} Additional options for the handlers used by this control, e.g.</p><blockquote><pre>{
41 "click": {delay: 100},
42 "hover": {delay: 300}
43 }</pre></blockquote></div></div></div>
45 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.handler"></a>handler</h3><div class=CBody><p>{Object} Reference to the <a href="../Handler-js.html#OpenLayers.Handler" class=LClass id=link24 onMouseOver="ShowTip(event, 'tt4', 'link24')" onMouseOut="HideTip('tt4')">OpenLayers.Handler</a> for this control</p></div></div></div>
47 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.hoverRequest"></a>hoverRequest</h3><div class=CBody><p>{<a href="../Request-js.html#OpenLayers.Request" class=LClass id=link25 onMouseOver="ShowTip(event, 'tt5', 'link25')" onMouseOut="HideTip('tt5')">OpenLayers.Request</a>} contains the currently running hover request (if any).</p></div></div></div>
49 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.Constants"></a>Constants</h3></div></div>
51 <div class="CConstant"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.EVENT_TYPES"></a>EVENT_TYPES</h3><div class=CBody><h4 class=CHeading>Supported event types (in addition to those from <a href="../Control-js.html#OpenLayers.Control" class=LClass id=link26 onMouseOver="ShowTip(event, 'tt18', 'link26')" onMouseOut="HideTip('tt18')">OpenLayers.Control</a>)</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>getfeatureinfo</td><td class=CDLDescription>Triggered when a GetFeatureInfo response is received. The event object has a <b>text</b> property with the body of the response (String), a <b>features</b> property with an array of the parsed features, an <b>xy</b> property with the position of the mouse click or hover event that triggered the request, and a <b>request</b> property with the request itself.</td></tr></table></div></div></div>
53 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.Constructor"></a>Constructor</h3></div></div>
55 <div class="CConstructor"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.OpenLayers.Control.WMSGetFeatureInfo"></a><OpenLayers.<wbr>Control.<wbr>WMSGetFeatureInfo></h3><div class=CBody><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object}</td></tr></table></div></div></div>
57 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.Functions"></a>Functions</h3></div></div>
59 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.activate"></a>activate</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>activate: function ()</td></tr></table></blockquote><p>Activates the control.</p><h4 class=CHeading>Returns</h4><p>{Boolean} The control was effectively activated.</p></div></div></div>
61 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.deactivate"></a>deactivate</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>deactivate: function ()</td></tr></table></blockquote><p>Deactivates the control.</p><h4 class=CHeading>Returns</h4><p>{Boolean} The control was effectively deactivated.</p></div></div></div>
63 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.getInfoForClick"></a>getInfoForClick</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>getInfoForClick: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Called on click</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{<a href="../Events-js.html#OpenLayers.Event" class=LClass id=link27 onMouseOver="ShowTip(event, 'tt20', 'link27')" onMouseOut="HideTip('tt20')">OpenLayers.Event</a>}</td></tr></table></div></div></div>
65 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.getInfoForHover"></a>getInfoForHover</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>getInfoForHover: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Pause callback for the hover handler</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>evt</td><td class=CDLDescription>{Object}</td></tr></table></div></div></div>
67 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.cancelHover"></a>cancelHover</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>cancelHover: function()</td></tr></table></blockquote><p>Cancel callback for the hover handler</p></div></div></div>
69 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.findLayers"></a>findLayers</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>findLayers: function()</td></tr></table></blockquote><p>Internal method to get the layers, independent of whether we are inspecting the map or using a client-provided array</p></div></div></div>
71 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.urlMatches"></a>urlMatches</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>urlMatches: function(</td><td class=PParameter nowrap>url</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Test to see if the provided url matches either the control <a href="#OpenLayers.Control.WMSGetFeatureInfo.url" class=LProperty id=link28 onMouseOver="ShowTip(event, 'tt13', 'link28')" onMouseOut="HideTip('tt13')">url</a> or one of the <a href="#OpenLayers.Control.WMSGetFeatureInfo.layerUrls" class=LProperty id=link29 onMouseOver="ShowTip(event, 'tt14', 'link29')" onMouseOut="HideTip('tt14')">layerUrls</a>.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>url</td><td class=CDLDescription>{String} The url to test.</td></tr></table><h4 class=CHeading>Returns</h4><p>{Boolean} The provided url matches the control <a href="#OpenLayers.Control.WMSGetFeatureInfo.url" class=LProperty id=link30 onMouseOver="ShowTip(event, 'tt13', 'link30')" onMouseOut="HideTip('tt13')">url</a> or one of the <a href="#OpenLayers.Control.WMSGetFeatureInfo.layerUrls" class=LProperty id=link31 onMouseOver="ShowTip(event, 'tt14', 'link31')" onMouseOut="HideTip('tt14')">layerUrls</a>.</p></div></div></div>
73 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.request"></a>request</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>request: function(</td><td class=PParameter nowrap>clickPosition,</td></tr><tr><td></td><td class=PParameter nowrap>options</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Sends a GetFeatureInfo request to the WMS</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>clickPosition</td><td class=CDLDescription>{<a href="../BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link32 onMouseOver="ShowTip(event, 'tt21', 'link32')" onMouseOut="HideTip('tt21')">OpenLayers.Pixel</a>} The position on the map where the mouse event occurred.</td></tr><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object} additional options for this method.</td></tr></table><h4 class=CHeading>Valid options</h4><ul><li><b>hover</b> {Boolean} true if we do the request for the hover handler</li></ul></div></div></div>
75 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.handleResponse"></a>handleResponse</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>handleResponse: function(</td><td class=PParameter nowrap>xy,</td></tr><tr><td></td><td class=PParameter nowrap>request</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Handler for the GetFeatureInfo response.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>xy</td><td class=CDLDescription>{<a href="../BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link33 onMouseOver="ShowTip(event, 'tt21', 'link33')" onMouseOut="HideTip('tt21')">OpenLayers.Pixel</a>} The position on the map where the mouse event occurred.</td></tr><tr><td class=CDLEntry>request</td><td class=CDLDescription>{XMLHttpRequest} The request object.</td></tr></table></div></div></div>
77 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Control.WMSGetFeatureInfo.setMap"></a>setMap</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>setMap: function(</td><td class=PParameter nowrap>map</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Set the map property for the control.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>map</td><td class=CDLDescription>{<a href="../Map-js.html#OpenLayers.Map" class=LClass id=link34 onMouseOver="ShowTip(event, 'tt22', 'link34')" onMouseOut="HideTip('tt22')">OpenLayers.Map</a>}</td></tr></table></div></div></div>
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92 <!--START_ND_TOOLTIPS-->
93 <div class=CToolTip id="tt1"><div class=CClass>Instances of OpenLayers.Layer.WMS are used to display data from OGC Web Mapping Services. </div></div><div class=CToolTip id="tt2"><div class=CClass>Base class for format reading/writing a variety of formats. </div></div><div class=CToolTip id="tt3"><div class=CProperty>{OpenLayers.Format} A format for parsing GetFeatureInfo responses. </div></div><div class=CToolTip id="tt4"><div class=CClass>Base class to construct a higher-level handler for event sequences. </div></div><div class=CToolTip id="tt5"><div class=CClass>The OpenLayers.Request namespace contains convenience methods for working with XMLHttpRequests. </div></div><div class=CToolTip id="tt6"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>activate: function ()</td></tr></table></blockquote>Activates the control.</div></div><div class=CToolTip id="tt7"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>deactivate: function ()</td></tr></table></blockquote>Deactivates the control.</div></div><div class=CToolTip id="tt8"><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>getInfoForClick: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Called on click</div></div><div class=CToolTip id="tt9"><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>getInfoForHover: function(</td><td class=PParameter nowrap>evt</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Pause callback for the hover handler</div></div><div class=CToolTip id="tt10"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>cancelHover: function()</td></tr></table></blockquote>Cancel callback for the hover handler</div></div><div class=CToolTip id="tt11"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>findLayers: function()</td></tr></table></blockquote>Internal method to get the layers, independent of whether we are inspecting the map or using a client-provided array</div></div><div class=CToolTip id="tt12"><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>urlMatches: function(</td><td class=PParameter nowrap>url</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Test to see if the provided url matches either the control url or one of the layerUrls.</div></div><div class=CToolTip id="tt13"><div class=CProperty>{String} The URL of the WMS service to use. </div></div><div class=CToolTip id="tt14"><div class=CProperty>{Array(String)} Optional list of urls for layers that should be queried. </div></div><div class=CToolTip id="tt15"><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>request: function(</td><td class=PParameter nowrap>clickPosition,</td></tr><tr><td></td><td class=PParameter nowrap>options</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Sends a GetFeatureInfo request to the WMS</div></div><div class=CToolTip id="tt16"><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>handleResponse: function(</td><td class=PParameter nowrap>xy,</td></tr><tr><td></td><td class=PParameter nowrap>request</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Handler for the GetFeatureInfo response.</div></div><div class=CToolTip id="tt17"><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>setMap: function(</td><td class=PParameter nowrap>map</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Set the map property for the control.</div></div><div class=CToolTip id="tt18"><div class=CClass>Controls affect the display or behavior of the map. </div></div><div class=CToolTip id="tt19"><div class=CClass>Class to read GetFeatureInfo responses from Web Mapping Services</div></div><div class=CToolTip id="tt20"><div class=CClass>Utility functions for event handling.</div></div><div class=CToolTip id="tt21"><div class=CClass>This class represents a screen coordinate, in x and y coordinates</div></div><div class=CToolTip id="tt22"><div class=CClass>Instances of OpenLayers.Map are interactive maps embedded in a web page. </div></div><!--END_ND_TOOLTIPS-->
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