[OpenLayers-Users] getting name placemark from a kml-file

[Phil Scadden]

> i want to open/show a label or popup by clicking on the icon in the map.
> this label should show the name which is written in the kml file, in this
> case the "Tractor1".
>
>    

See the KML examples but basics are - use a SelectFeature control and 
assign events to featurehighlighted and featureunhighlighted.

My onfeaturehighlighted (following the examples closely), looks like 
below. Note the feature.attributes.name
which what you want.

         function onKmlFeatureSelect(event) {
              var feature = event.feature;
                 // Since KML is user-generated, do naive protection against
                 // Javascript.
                 var content
                 if (feature.style.balloonStyle)  {
                      // Use Style.js to replace balloonstyle variables 
with attribute values
                     content = 
OpenLayers.Style.createLiteral(feature.style.balloonStyle, feature);
                 } else if (!feature.attributes.description &&  
!feature.attributes.name) {
                     content = "<table border=\"1\">\n";
                     for (var i in feature.attributes){
                          content += "<tr><td>" + feature.attributes[i] 
+ "</td></tr>\n";
                     }
                     content += "</table>\n";
                 } else {
                     content = '<table><tr bgcolor="#9CBCE2"><th>' + 
feature.attributes.name + "</th></tr></table>" + 
feature.attributes.description;
                 }
                 if (content.search("<script") != -1) {
                     content = "Content contained Javascript! Escaped 
content below.<br />" + content.replace(/</g, "&lt;");
                 }
                 popup = new OpenLayers.Popup.FramedCloud("chicken",
                                          
feature.geometry.getBounds().getCenterLonLat(),
                                          new OpenLayers.Size(100,100),
                                          content,
                                          null, true, onPopupClose);
                 feature.popup = popup;
                 map.addPopup(popup);
         }

         function onKmlFeatureUnselect(event) {
             var feature = event.feature;
             if(feature.popup) {
                 map.removePopup(feature.popup);
                 feature.popup.destroy();
                 delete feature.popup;
             }
         }
         function onPopupClose(evt) {
             if (kmlSelectControl != null)
                     kmlSelectControl.unselectAll();
         }


-- 
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St, 
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232

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