openlayers/doc/devdocs/files/OpenLayers/Layer/EventPane-js.html

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<div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="OpenLayers.Layer.EventPane"></a>OpenLayers.<wbr>Layer.<wbr>EventPane</h1><div class=CBody><p>Base class for 3rd party layers.&nbsp;  Create a new event pane layer with the <a href="#OpenLayers.Layer.EventPane.OpenLayers.Layer.EventPane" class=LConstructor id=link15 onMouseOver="ShowTip(event, 'tt15', 'link15')" onMouseOut="HideTip('tt15')">OpenLayers.Layer.EventPane</a> constructor.</p><h4 class=CHeading>Inherits from</h4><ul><li><a href="../Layer-js.html#OpenLayers.Layer" class=LClass >OpenLayers.Layer</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.Layer.EventPane" >OpenLayers.<wbr>Layer.<wbr>EventPane</a></td><td class=SDescription>Base class for 3rd party layers. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.Properties" >Properties</a></td><td class=SDescription></td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.smoothDragPan" >smoothDragPan</a></td><td class=SDescription>{Boolean} smoothDragPan determines whether non-public/internal API methods are used for better performance while dragging EventPane layers. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.isBaseLayer" >isBaseLayer</a></td><td class=SDescription>{Boolean} EventPaned layers are always base layers, by necessity.</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.isFixed" >isFixed</a></td><td class=SDescription>{Boolean} EventPaned layers are fixed by default.</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.pane" >pane</a></td><td class=SDescription>{DOMElement} A reference to the element that controls the events.</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.mapObject" >mapObject</a></td><td class=SDescription>{Object} This is the object which will be used to load the 3rd party library in the case of the google layer, this will be of type GMap, in the case of the ve layer, this will be of type VEMap</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.Constructor" >Constructor</a></td><td class=SDescription></td></tr><tr class="SConstructor SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.OpenLayers.Layer.EventPane" >OpenLayers.<wbr>Layer.<wbr>EventPane</a></td><td class=SDescription>Create a new event pane layer</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.destroy" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">destroy</a></td><td class=SDescription>Deconstruct this layer.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.setMap" id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">setMap</a></td><td class=SDescription>Set the map property for the layer. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.removeMap" id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">removeMap</a></td><td class=SDescription>On being removed from the map, we&rsquo;ll like to remove the invisible &lsquo;pane&rsquo; div that we added to it on creation.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.loadWarningMessage" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">loadWarningMessage</a></td><td class=SDescription>If we can&rsquo;t load the map lib, then display an error message to the user and tell them where to go for help.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getWarningHTML" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">getWarningHTML</a></td><td class=SDescription>To be implemented by subclasses.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.display" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">display</a></td><td class=SDescription>Set the display on the pane</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.setZIndex" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">setZIndex</a></td><td class=SDescription>Set the z-index order for the pane.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.moveTo" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">moveTo</a></td><td class=SDescription>Handle calls to move the layer.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getLonLatFromViewPortPx" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">getLonLatFromViewPortPx</a></td><td class=SDescription>Get a map location from a pixel location</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getViewPortPxFromLonLat" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">getViewPortPxFromLonLat</a></td><td class=SDescription>Get a pixel location from a map location</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getOLLonLatFromMapObjectLonLat" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">getOLLonLatFromMapObjectLonLat</a></td><td class=SDescription>Get an OL style map location from a 3rd party style map location</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getMapObjectLonLatFromOLLonLat" id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">getMapObjectLonLatFromOLLonLat</a></td><td class=SDescription>Get a 3rd party map location from an OL map location.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getOLPixelFromMapObjectPixel" id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">getOLPixelFromMapObjectPixel</a></td><td class=SDescription>Get an OL pixel location from a 3rd party pixel location.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.EventPane.getMapObjectPixelFromOLPixel" id=link14 onMouseOver="ShowTip(event, 'tt14', 'link14')" onMouseOut="HideTip('tt14')">getMapObjectPixelFromOLPixel</a></td><td class=SDescription>Get a 3rd party pixel location from an OL pixel location</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>
  15
  16 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.Properties"></a>Properties</h3></div></div>
  17
  18 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.smoothDragPan"></a>smoothDragPan</h3><div class=CBody><p>{Boolean} smoothDragPan determines whether non-public/internal API methods are used for better performance while dragging EventPane layers.&nbsp; When not in sphericalMercator mode, the smoother dragging doesn&rsquo;t actually move north/south directly with the number of pixels moved, resulting in a slight offset when you drag your mouse north south with this option on.&nbsp; If this visual disparity bothers you, you should turn this option off, or use spherical mercator.&nbsp; Default is on.</p></div></div></div>
  19
  20 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.isBaseLayer"></a>isBaseLayer</h3><div class=CBody><p>{Boolean} EventPaned layers are always base layers, by necessity.</p></div></div></div>
  21
  22 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.isFixed"></a>isFixed</h3><div class=CBody><p>{Boolean} EventPaned layers are fixed by default.</p></div></div></div>
  23
  24 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.pane"></a>pane</h3><div class=CBody><p>{DOMElement} A reference to the element that controls the events.</p></div></div></div>
  25
  26 <div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.mapObject"></a>mapObject</h3><div class=CBody><p>{Object} This is the object which will be used to load the 3rd party library in the case of the google layer, this will be of type GMap, in the case of the ve layer, this will be of type VEMap</p></div></div></div>
  27
  28 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.Constructor"></a>Constructor</h3></div></div>
  29
  30 <div class="CConstructor"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.OpenLayers.Layer.EventPane"></a>OpenLayers.<wbr>Layer.<wbr>EventPane</h3><div class=CBody><p>Create a new event pane layer</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>name</td><td class=CDLDescription>{String}</td></tr><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object} Hashtable of extra options to tag onto the layer</td></tr></table></div></div></div>
  31
  32 <div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.Functions"></a>Functions</h3></div></div>
  33
  34 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.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>Deconstruct this layer.</p></div></div></div>
  35
  36 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.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 layer.&nbsp; This is done through an accessor so that subclasses can override this and take special action once they have their map variable set.</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=link16 onMouseOver="ShowTip(event, 'tt16', 'link16')" onMouseOut="HideTip('tt16')">OpenLayers.Map</a>}</td></tr></table></div></div></div>
  37
  38 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.removeMap"></a>removeMap</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>removeMap: function(</td><td class=PParameter nowrap>map</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>On being removed from the map, we&rsquo;ll like to remove the invisible &lsquo;pane&rsquo; div that we added to it on creation.</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=link17 onMouseOver="ShowTip(event, 'tt16', 'link17')" onMouseOut="HideTip('tt16')">OpenLayers.Map</a>}</td></tr></table></div></div></div>
  39
  40 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.loadWarningMessage"></a>loadWarningMessage</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>loadWarningMessage:function()</td></tr></table></blockquote><p>If we can&rsquo;t load the map lib, then display an error message to the user and tell them where to go for help.</p><p>This function sets up the layout for the warning message.&nbsp; Each 3rd party layer must implement its own getWarningHTML() function to provide the actual warning message.</p></div></div></div>
  41
  42 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getWarningHTML"></a>getWarningHTML</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>getWarningHTML:function()</td></tr></table></blockquote><p>To be implemented by subclasses.</p><h4 class=CHeading>Returns</h4><p>{String} String with information on why layer is broken, how to get it working.</p></div></div></div>
  43
  44 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.display"></a>display</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>display: function(</td><td class=PParameter nowrap>display</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Set the display on the pane</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>display</td><td class=CDLDescription>{Boolean}</td></tr></table></div></div></div>
  45
  46 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.setZIndex"></a>setZIndex</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>setZIndex: function (</td><td class=PParameter nowrap>zIndex</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Set the z-index order for the pane.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>zIndex</td><td class=CDLDescription>{int}</td></tr></table></div></div></div>
  47
  48 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.moveTo"></a>moveTo</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>moveTo:function(</td><td class=PParameter nowrap>bounds,</td></tr><tr><td></td><td class=PParameter nowrap>zoomChanged,</td></tr><tr><td></td><td class=PParameter nowrap>dragging</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Handle calls to move the layer.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>bounds</td><td class=CDLDescription>{<a href="../BaseTypes/Bounds-js.html#OpenLayers.Bounds" class=LClass id=link18 onMouseOver="ShowTip(event, 'tt17', 'link18')" onMouseOut="HideTip('tt17')">OpenLayers.Bounds</a>}</td></tr><tr><td class=CDLEntry>zoomChanged</td><td class=CDLDescription>{Boolean}</td></tr><tr><td class=CDLEntry>dragging</td><td class=CDLDescription>{Boolean}</td></tr></table></div></div></div>
  49
  50 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getLonLatFromViewPortPx"></a>getLonLatFromViewPortPx</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>getLonLatFromViewPortPx: function (</td><td class=PParameter nowrap>viewPortPx</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Get a map location from a pixel location</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>viewPortPx</td><td class=CDLDescription>{<a href="../BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link19 onMouseOver="ShowTip(event, 'tt18', 'link19')" onMouseOut="HideTip('tt18')">OpenLayers.Pixel</a>}</td></tr></table><h4 class=CHeading>Returns</h4><p>{<a href="../BaseTypes/LonLat-js.html#OpenLayers.LonLat" class=LClass id=link20 onMouseOver="ShowTip(event, 'tt19', 'link20')" onMouseOut="HideTip('tt19')">OpenLayers.LonLat</a>} An OpenLayers.LonLat which is the passed-in view port OpenLayers.Pixel, translated into lon/lat by map lib If the map lib is not loaded or not centered, returns null</p></div></div></div>
  51
  52 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getViewPortPxFromLonLat"></a>getViewPortPxFromLonLat</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>getViewPortPxFromLonLat: function (</td><td class=PParameter nowrap>lonlat</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Get a pixel location from a map location</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>lonlat</td><td class=CDLDescription>{<a href="../BaseTypes/LonLat-js.html#OpenLayers.LonLat" class=LClass id=link21 onMouseOver="ShowTip(event, 'tt19', 'link21')" onMouseOut="HideTip('tt19')">OpenLayers.LonLat</a>}</td></tr></table><h4 class=CHeading>Returns</h4><p>{<a href="../BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link22 onMouseOver="ShowTip(event, 'tt18', 'link22')" onMouseOut="HideTip('tt18')">OpenLayers.Pixel</a>} An OpenLayers.Pixel which is the passed-in OpenLayers.LonLat, translated into view port pixels by map lib If map lib is not loaded or not centered, returns null</p></div></div></div>
  53
  54 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getOLLonLatFromMapObjectLonLat"></a>getOLLonLatFromMapObjectLonLat</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>getOLLonLatFromMapObjectLonLat: function(</td><td class=PParameter nowrap>moLonLat</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Get an OL style map location from a 3rd party style map location</p><p>Parameters moLonLat - {Object}</p><h4 class=CHeading>Returns</h4><p>{<a href="../BaseTypes/LonLat-js.html#OpenLayers.LonLat" class=LClass id=link23 onMouseOver="ShowTip(event, 'tt19', 'link23')" onMouseOut="HideTip('tt19')">OpenLayers.LonLat</a>} An OpenLayers.LonLat, translated from the passed in MapObject LonLat Returns null if null value is passed in</p></div></div></div>
  55
  56 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getMapObjectLonLatFromOLLonLat"></a>getMapObjectLonLatFromOLLonLat</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>getMapObjectLonLatFromOLLonLat: function(</td><td class=PParameter nowrap>olLonLat</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Get a 3rd party map location from an OL map location.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>olLonLat</td><td class=CDLDescription>{<a href="../BaseTypes/LonLat-js.html#OpenLayers.LonLat" class=LClass id=link24 onMouseOver="ShowTip(event, 'tt19', 'link24')" onMouseOut="HideTip('tt19')">OpenLayers.LonLat</a>}</td></tr></table><h4 class=CHeading>Returns</h4><p>{Object} A MapObject LonLat, translated from the passed in OpenLayers.LonLat Returns null if null value is passed in</p></div></div></div>
  57
  58 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getOLPixelFromMapObjectPixel"></a>getOLPixelFromMapObjectPixel</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>getOLPixelFromMapObjectPixel: function(</td><td class=PParameter nowrap>moPixel</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Get an OL pixel location from a 3rd party pixel location.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>moPixel</td><td class=CDLDescription>{Object}</td></tr></table><h4 class=CHeading>Returns</h4><p>{<a href="../BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link25 onMouseOver="ShowTip(event, 'tt18', 'link25')" onMouseOut="HideTip('tt18')">OpenLayers.Pixel</a>} An OpenLayers.Pixel, translated from the passed in MapObject Pixel Returns null if null value is passed in</p></div></div></div>
  59
  60 <div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.EventPane.getMapObjectPixelFromOLPixel"></a>getMapObjectPixelFromOLPixel</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>getMapObjectPixelFromOLPixel: function(</td><td class=PParameter nowrap>olPixel</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p>Get a 3rd party pixel location from an OL pixel location</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>olPixel</td><td class=CDLDescription>{<a href="../BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link26 onMouseOver="ShowTip(event, 'tt18', 'link26')" onMouseOut="HideTip('tt18')">OpenLayers.Pixel</a>}</td></tr></table><h4 class=CHeading>Returns</h4><p>{Object} A MapObject Pixel, translated from the passed in OpenLayers.Pixel Returns null if null value is passed in</p></div></div></div>
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  75 <!--START_ND_TOOLTIPS-->
  76 <div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>destroy: function()</td></tr></table></blockquote>Deconstruct this layer.</div></div><div class=CToolTip id="tt2"><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 layer. </div></div><div class=CToolTip id="tt3"><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>removeMap: function(</td><td class=PParameter nowrap>map</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>On being removed from the map, we&rsquo;ll like to remove the invisible &lsquo;pane&rsquo; div that we added to it on creation.</div></div><div class=CToolTip id="tt4"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>loadWarningMessage:function()</td></tr></table></blockquote>If we can&rsquo;t load the map lib, then display an error message to the user and tell them where to go for help.</div></div><div class=CToolTip id="tt5"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>getWarningHTML:function()</td></tr></table></blockquote>To be implemented by subclasses.</div></div><div class=CToolTip id="tt6"><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>display: function(</td><td class=PParameter nowrap>display</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Set the display on the pane</div></div><div class=CToolTip id="tt7"><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>setZIndex: function (</td><td class=PParameter nowrap>zIndex</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Set the z-index order for the pane.</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>moveTo:function(</td><td class=PParameter nowrap>bounds,</td></tr><tr><td></td><td class=PParameter nowrap>zoomChanged,</td></tr><tr><td></td><td class=PParameter nowrap>dragging</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Handle calls to move the layer.</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>getLonLatFromViewPortPx: function (</td><td class=PParameter nowrap>viewPortPx</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Get a map location from a pixel location</div></div><div class=CToolTip id="tt10"><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>getViewPortPxFromLonLat: function (</td><td class=PParameter nowrap>lonlat</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Get a pixel location from a map location</div></div><div class=CToolTip id="tt11"><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>getOLLonLatFromMapObjectLonLat: function(</td><td class=PParameter nowrap>moLonLat</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Get an OL style map location from a 3rd party style map location</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>getMapObjectLonLatFromOLLonLat: function(</td><td class=PParameter nowrap>olLonLat</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Get a 3rd party map location from an OL map location.</div></div><div class=CToolTip id="tt13"><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>getOLPixelFromMapObjectPixel: function(</td><td class=PParameter nowrap>moPixel</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Get an OL pixel location from a 3rd party pixel location.</div></div><div class=CToolTip id="tt14"><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>getMapObjectPixelFromOLPixel: function(</td><td class=PParameter nowrap>olPixel</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Get a 3rd party pixel location from an OL pixel location</div></div><div class=CToolTip id="tt15"><div class=CConstructor>Create a new event pane layer</div></div><div class=CToolTip id="tt16"><div class=CClass>Instances of OpenLayers.Map are interactive maps embedded in a web page. </div></div><div class=CToolTip id="tt17"><div class=CClass>Instances of this class represent bounding boxes. </div></div><div class=CToolTip id="tt18"><div class=CClass>This class represents a screen coordinate, in x and y coordinates</div></div><div class=CToolTip id="tt19"><div class=CClass>This class represents a longitude and latitude pair</div></div><!--END_ND_TOOLTIPS-->
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