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<a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008 Overview
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<b><a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008</b></em>
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<h2>GeoRSS.js</h2>
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<h4>Summary</h4>
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<p>
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No overview generated for 'GeoRSS.js'<BR/><BR/>
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<b>Class Summary</b>
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</font></td>
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</tr>
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<tr bgcolor="white" class="TableRowColor">
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<td width="15%"><b><a href="GeoRSS.html">GeoRSS</a></b></td>
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<td> </td>
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</table>
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<hr/>
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<!-- ========== METHOD SUMMARY =========== -->
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<!-- ========== END METHOD SUMMARY =========== -->
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<pre class="sourceview"><span class="comment">/*
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License: LGPL as per: http://www.gnu.org/copyleft/lesser.html
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$Id: GeoRSS.js 3882 2008-02-27 15:41:33Z gjvoosten $
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*/</span>
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<span class="comment">
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// Ensure this object's dependancies are loaded.</span>
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mapbuilder.loadScript(baseDir+<span class="literal">"/model/ModelBase.js"</span>);
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<span class="comment">/**
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* Stores a GML Feature or FeatureCollection as defined by the
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* Open Geospatial Consortium (http://www.opengeospatial.org/).
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*
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* WARNING: This model is only to be used if you do not want to embed the GeoRSS feed
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* in the context doc. See also MAP-271
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* <span class="attrib">@deprecated</span>
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* <span class="attrib">@constructor</span>
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* <span class="attrib">@base</span> ModelBase
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* <span class="attrib">@author</span> Cameron Shorter
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* <span class="attrib">@requires</span> Sarissa
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* <span class="attrib">@param</span> modelNode The model's XML object node from the configuration document.
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* <span class="attrib">@param</span> parent The parent model for the object.
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*/</span>
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<span class="reserved">function</span> GeoRSS(modelNode, parent) {
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<span class="comment"> // Inherit the ModelBase functions and parameters</span>
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ModelBase.apply(<span class="reserved">this</span>, new Array(modelNode, parent));
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<span class="comment">/** init
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* <span class="attrib">@param</span> objRef Pointer to this object.
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*/</span>
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<span class="reserved">this</span>.initItems = <span class="reserved">function</span>(objRef) {
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var items = objRef.doc.selectNodes(<span class="literal">"rdf:RDF/rss:item"</span>);
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<span class="reserved">if</span>( items.length == 0 ) {
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items = objRef.doc.selectNodes(<span class="literal">"atom:feed/atom:entry"</span>);
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}
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<span class="reserved">for</span> (var i=0; i<items.length; ++i) {
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var item = items[i];
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item.setAttribute(<span class="literal">"divid"</span>, <span class="literal">"RSS_Item_"</span>+mbIds.getId());
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}
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}
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<span class="comment"> // OBE this.addFirstListener("loadModel",this.initItems,this);</span>
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<span class="comment">/**
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* Returns the list of nodes selected by the nodeSelectpath
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* <span class="attrib">@return</span> list of nodes selected
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*/</span>
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<span class="reserved">this</span>.getFeatureNodes = <span class="reserved">function</span>() {
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<span class="reserved">return</span> <span class="reserved">this</span>.doc.selectNodes(<span class="reserved">this</span>.nodeSelectXpath);
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}
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<span class="comment">/**
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* Returns a label for a node in the feature list
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* <span class="attrib">@param</span> featureNode the feature node to selectfrom
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* <span class="attrib">@return</span> a label for this feature
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*/</span>
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<span class="reserved">this</span>.getFeatureName = <span class="reserved">function</span>(featureNode) {
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var labelNode = featureNode.selectSingleNode(<span class="literal">"rss:title"</span>);
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<span class="reserved">if</span>( labelNode == null )
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labelNode = featureNode.selectSingleNode(<span class="literal">"atom:title"</span>);
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<span class="reserved">return</span> labelNode?getNodeValue(labelNode):mbGetMessage(<span class="literal">"noRssTitle"</span>);
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}
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<span class="comment">/**
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* Returns an ID value for a node in the feature list
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* <span class="attrib">@param</span> featureNode the feature node to selectfrom
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* <span class="attrib">@return</span> ID for this feature
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*/</span>
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<span class="reserved">this</span>.getFeatureId = <span class="reserved">function</span>(featureNode) {
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var id = featureNode.getAttribute(<span class="literal">"divid"</span>)
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<span class="reserved">if</span>( id )
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<span class="reserved">return</span> id;
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<span class="reserved">return</span> <span class="literal">"no_id"</span>;
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}
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<span class="comment">/**
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* Returns a point geometry for the feature
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* <span class="attrib">@param</span> featureNode the feature node to select from
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* <span class="attrib">@return</span> the geometric point for the node
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*/</span>
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<span class="reserved">this</span>.getFeaturePoint = <span class="reserved">function</span>(featureNode) {
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<span class="reserved">if</span> (featureNode.selectSingleNode(<span class="literal">"geo:long"</span>)) {
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var pointX = getNodeValue(featureNode.selectSingleNode(<span class="literal">"geo:long"</span>));
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var pointY = getNodeValue(featureNode.selectSingleNode(<span class="literal">"geo:lat"</span>));
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<span class="reserved">return</span> new Array(pointX, pointY);
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} <span class="reserved">else</span> {
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var pos = featureNode.selectSingleNode(<span class="literal">"georss:where/gml:Point/gml:pos"</span>)
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<span class="reserved">if</span>( pos != null ) {
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var coordstr = getNodeValue(pos);
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<span class="comment"> //alert("coords:"+coordstr );</span>
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var coords = coordstr.split(<span class="literal">" "</span>)
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var pointX = coords[0]
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var pointY = coords[1]
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<span class="reserved">return</span> new Array(pointX, pointY);
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} <span class="reserved">else</span> {
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<span class="reserved">return</span> new Array(0,0); //or some other error to <span class="reserved">return</span>?
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}
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}
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}
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<span class="comment">/**
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* Returns the geometry for the feature
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* <span class="attrib">@param</span> featureNode the feature node to select from
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* <span class="attrib">@return</span> the geometric point for the node
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*/</span>
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<span class="reserved">this</span>.getFeatureGeometry = <span class="reserved">function</span>(featureNode) {
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<span class="reserved">if</span> (featureNode.selectSingleNode(<span class="literal">"geo:long"</span>)) {
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var pointX = getNodeValue(featureNode.selectSingleNode(<span class="literal">"geo:long"</span>));
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var pointY = getNodeValue(featureNode.selectSingleNode(<span class="literal">"geo:lat"</span>));
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<span class="reserved">return</span> <span class="literal">"POINT "</span> + pointX + <span class="literal">","</span> + pointY;
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}
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var pos = featureNode.selectSingleNode(<span class="literal">"georss:where/gml:Point/gml:pos"</span>)
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<span class="reserved">if</span>( pos != null ) {
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var coordstr = getNodeValue(pos);
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<span class="reserved">return</span> <span class="literal">"POINT "</span> + coordstr;
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}
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var posList = featureNode.selectSingleNode(<span class="literal">"georss:where/gml:LineString/gml:posList"</span>)
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<span class="reserved">if</span>( posList != null ) { //WARNING: could overflow so get all nodes
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var children = posList.childNodes;
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var count = children.length;
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var text=<span class="literal">""</span>;
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<span class="reserved">for</span>( var i=0; i<count; i++ ) {
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text += children[i].nodeValue;
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}
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<span class="comment"> //alert("count:"+ count + " length:"+text.length)</span>
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<span class="reserved">return</span> <span class="literal">"LINESTRING "</span> + text;
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}
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var posList = featureNode.selectSingleNode(<span class="literal">"georss:where/gml:Polygon/gml:exterior/gml:LinearRing"</span>)
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<span class="reserved">if</span>( posList != null ) {
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var coordstr = getNodeValue(posList);
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<span class="reserved">return</span> <span class="literal">"POLYGON "</span> + coordstr;
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}
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alert(mbGetMessage(<span class="literal">"invalidGmlGeom"</span>));
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<span class="reserved">return</span> null
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}
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<span class="comment">/**
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* Get the GML Node out of the RSS feed
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*/</span>
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<span class="reserved">this</span>.getFeatureGml = <span class="reserved">function</span>(featureNode) {
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var where = featureNode.selectSingleNode(<span class="literal">"georss:where"</span>)
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<span class="reserved">if</span>( where != null ) {
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var gml = where.firstChild;
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<span class="reserved">return</span> gml;
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} <span class="reserved">else</span> {
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<span class="reserved">return</span> null;
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}
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}
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<span class="comment">/**
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* Returns a specific icon for that entry
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* <span class="attrib">@param</span> featureNode the feature node to select from
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* <span class="attrib">@return</span> the geometric point for the node
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*/</span>
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<span class="reserved">this</span>.getFeatureIcon = <span class="reserved">function</span>( featureNode ) {
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<span class="reserved">if</span>( featureNode == null )
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<span class="reserved">return</span> null;
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<span class="comment">
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// look for an icon tag</span>
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var icon = featureNode.selectSingleNode(<span class="literal">"atom:icon"</span>);
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<span class="reserved">if</span> (icon != undefined) {
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<span class="reserved">return</span> getNodeValue(icon);
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} <span class="reserved">else</span> {
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<span class="reserved">return</span> null;
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}
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}
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}
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</pre>
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<hr>
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<b><a href='http://mapbuilder.sourceforge.net'>Community Map Builder</a> 27 Apr 2008</b></em>
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<a href="index.html" target="_top"><b>FRAMES</b></a>
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<a href="overview-summary.html" target="_top"><b>NO FRAMES</b></a>
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<script>
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<!--
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if(window==top) {
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document.writeln('<A HREF="allclasses-noframe.html" TARGET=""><B>All Classes</B></A>');
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}
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//-->
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</script>
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<noscript>
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<a href="allclasses-noframe.html" target=""><b>All Classes</b></a>
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</noscript>
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<div class="jsdoc_ctime">Documentation generated by <a href="http://jsdoc.sourceforge.net/" target="_parent">JSDoc</a> on Sun Apr 27 20:30:54 2008</div>
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