[Users] help with GeoExt.grid.FeatureSelectionModel

[Alexandre Dube]

Simon,

   That's a good idea.  Even better, if the selection model and 
SelectFeature control both allow multiple features selection, you could 
loop through all feature and extent the bounds to zoom to all selected 
features.  Also, instead of looping through the records, one could also 
loop through the selected features of the vector layer.  Both are okay.

Regards,

Alexandre


On 11-03-03 09:34 AM, Simon Appelt wrote:
> Hi Mike & Alexandre,
>
> a problem could be that everytime, you selected a feature the event 
> gets triggered. I think a better way to solve this, is to add a 
> additional button inc. handler, something like this maybe:
> bbar: [{
>                       xtype: 'tbbutton',
>                       cls: 'x-btn-text-icon',
>                       tooltip: "Zoom To",
>                       icon: '../images/database_go.png',
>                         handler: function(){
>                           
> gridPanel.getSelectionModel().each(function(rec)  {
>                           var feature = rec.get("feature");
>                           var bounds = 
> feature.geometry.getBounds().toBBOX();
>                           map.zoomToExtent(new 
> OpenLayers.Bounds.fromString(bounds));
>                       });
>                 }}]
>
> Best regards,
> Simon
> Am 03.03.2011 14:33, schrieb Alexandre Dube:
>> Hi Mike,
>>
>>   Here's something you could do : listen to the vector layer 
>> "featureselected" event to zoom to the extent of a feature selected 
>> either from a click or row in the grid.  Here's how it should look 
>> like (using the example) :
>>
>> vecLayer.events.on({
>>     "featureselected": function(e) {
>>         this.map.zoomToExtent(e.feature.geometry.getBounds());
>>     },
>>     "scope": vecLayer
>> });
>>
>> If you don't want the map to zoom to the max zoomed in level when 
>> selecting a Point feature, you could manage them differently by 
>> detecting the type of geometry first then do a "map.setCenter(lonlat, 
>> zoom)" instead and define your own zoom level when selecting points.
>>
>> Best regards,
>>
>> Alexandre
>>
>>
>> On 11-03-02 01:44 PM, Michael Savarese wrote:
>>> Greetings, I'm fairly new to GeoExt and OpenLayers and I was 
>>> experimenting with the example "Grid with Features" 
>>> http://api.geoext.org/1.0/examples/feature-grid.html.  I'd like to 
>>> zoom or pan to a feature when the feature is clicked on the grid. 
>>> I've had success with zooming to a feature with OpenLayers but I 
>>> have no idea how to bind that click to an OpenLayers function. Any 
>>> help in the form of an example or reference would be appreciated.
>>>
>>> Mike
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at geoext.org  <mailto:Users at geoext.org>
>>> http://www.geoext.org/cgi-bin/mailman/listinfo/users
>>
>>
>> -- 
>> Alexandre Dubé
>> Mapgears
>> www.mapgears.com  <http://www.mapgears.com>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at geoext.org
>> http://www.geoext.org/cgi-bin/mailman/listinfo/users
>
>
> _______________________________________________
> Users mailing list
> Users at geoext.org
> http://www.geoext.org/cgi-bin/mailman/listinfo/users


-- 
Alexandre Dubé
Mapgears
www.mapgears.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.geoext.org/pipermail/users/attachments/20110303/56990d5e/attachment-0001.htm