[OpenLayers-Users] Labels/Tooltips on mouse over a Vector layer

[Adrian Popa]

Hello Sajeer,

How do you register your functions to events so that they are executed 
on mouse over instead of on click? Or is your popup created when you 
click a feature?

Thanks,
Adrian

Sajeer... wrote:
> *
>
> Hi,
>
> try this one,
>
>  
>
>  
>
> function
>
> * onFeatureSelect(feature) {
>
> selectedFeature = feature;
>
> popup =
>
> *new*
> OpenLayers.Popup.FramedCloud("",
>
> feature.geometry.getBounds().getCenterLonLat(),
>
> *new* OpenLayers.Size(100,100), "<div style='padding:15px 5px 5px 
> 10px;'>"+ "<table style='font-size:13px;color:red'>"+ "<tr>"+ "<td 
> width='40%'>Name</td>"+ "<td width='5%'>:</td>"+ 
> "<td>"+feature.attributes.label+"</td>"+ "</tr>"+ "</table></div>", 
> *null*, *true*, onPopupClose);
>
> feature.popup = popup;
>
> map.addPopup(popup);
>
> }
>
> *function* onPopupClose(evt) {
>
> selectControl.unselect(selectedFeature);
>
> }
>
> *function* onFeatureUnselect(feature) {
>
> *      *map.removePopup(feature.popup);
>
> feature.popup.destroy();
>
> feature.popup = *null*;
>
> }
>
> var  kmlLayer = new OpenLayers.Layer.GML(.............);
>
>  
> var selectControl = *new* OpenLayers.Control.SelectFeature(kmlLayer,
>
> {hover: *true*,onSelect: onFeatureSelect, onUnselect: onFeatureUnselect});
>
> map.addControl(selectControl);
>
> selectControl.activate();
>
>
> Regards
>
> Sajeer
>
>
>  
> On Thu, Jul 16, 2009 at 3:07 PM, Adrian Popa 
> <adrian_gh.popa at romtelecom.ro <mailto:adrian_gh.popa at romtelecom.ro>> 
> wrote:
>
>     Hello Pavel,
>
>     Great idea... However - I would like to keep popups for when I
>     click on an item.
>     Would it be possible to do something like:
>
>     layer.events.on({ "featureselected": onLocationSelect,
>     "featureunselected": onLocationUnselect,  //open regular popups
>                                       "onMouseOver":
>     onLocationMouseOver, "onMouseOut": onLocationMouseOut
>      });?
>
>     Problem is - I don't see those kinds of events on my layer. These
>     are the event types for a vector layer:
>     0 "beforefeatureadded"
>     1 "beforefeaturesadded"
>     2 "featureadded"
>     3 "featuresadded"
>     4 "beforefeatureremoved"
>     5 "featureremoved"
>     6 "featuresremoved"
>     7 "beforefeatureselected"
>     8 "featureselected"
>     9 "featureunselected"
>     10 "beforefeaturemodified"
>     11 "featuremodified"
>     12 "afterfeaturemodified"
>     13 "vertexmodified"
>     14 "sketchstarted"
>     15 "sketchmodified"
>     16 "sketchcomplete"
>     17 "refresh"
>     18 "loadstart"
>     19 "loadend"
>     20 "loadcancel"
>     21 "visibilitychanged"
>     22 "move"
>     23 "moveend"
>
>     Any idea what the events would be? If they are supported?
>
>     Pavel Iacovlev wrote:
>>     There many possible ways around this problem.
>>
>>     One is rewrite/extend your popup code. Popup is triggered on mouseover
>>     and on mouseout popup is hidden. You can style the popup so it looks
>>     more like a tooltip/label.
>>
>>     On Thu, Jul 16, 2009 at 2:34 PM, Adrian
>>     Popa<adrian_gh.popa at romtelecom.ro> <mailto:adrian_gh.popa at romtelecom.ro> wrote:
>>       
>>>     Hi,
>>>
>>>     Just a quick question - my users want to see the name of the city when
>>>     they are hovering over points loaded through KML in a vector layer. I
>>>     know this isn't supported, but are there plans to support such labels?
>>>
>>>     I'm thinking a different strategy might be to override/inherit the
>>>     OpenLayers.Control.MousePosition class and based on coordinate changes,
>>>     load the name from the closest KML feature. It doesn't need to be too
>>>     accurate, but it can't be an exact match, because the mouse will never
>>>     get that close to the KML coordinates.
>>>     However this solution will be costly - because on every mouse move you
>>>     would have to go through all the KML items and see which match...
>>>
>>>     What are your ideas regarding this subject?
>>>
>>>     ---
>>>
>>>     Adrian Popa
>>>     NOC Division
>>>     Network Engineer
>>>     Divizia Centrul National de Operare Retea
>>>     Departament Transport IP & Metro
>>>     Compartiment IP Core & Backbone
>>>     Phone: +40 21 400 3099
>>>
>>>     _______________________________________________
>>>     Users mailing list
>>>     Users at openlayers.org <mailto:Users at openlayers.org>
>>>     http://openlayers.org/mailman/listinfo/users
>>>
>>>         
>>       
>
>
>     -- 
>     --- 
>     Adrian Popa
>     NOC Division
>     Network Engineer
>     Divizia Centrul National de Operare Retea
>     Departament Transport IP & Metro
>     Compartiment IP Core & Backbone
>     Phone: +40 21 400 3099
>         
>
>
>     _______________________________________________
>     Users mailing list
>     Users at openlayers.org <mailto:Users at openlayers.org>
>     http://openlayers.org/mailman/listinfo/users
>
>

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