[OpenLayers-Users] Limit total Vector Layer points to be drawn

[Andreas Hocevar]

Hi,

looks like your OpenLayers version is too old. This was fixed after the 2.9.1 release (http://trac.openlayers.org/changeset/10362), so you have to use a current development version.

Regards,
Andreas.

On Jul 12, 2010, at 15:40 , giraam wrote:

> 
> Hi people,
> 
> I'm trying to limit the total Vector Layer's point to be drawn.. For
> example, after one point has been drawn prevent new points to be added..
> 
> I tried registering beforefeatureadded event as the definition for this
> event says:
> 
> Triggered before a feature is added.  Listeners will receive an object with
> a feature property referencing the feature to be added.  To stop the feature
> from being added, a listener should return false.
> 
> My code:
> 
>    vectorLayer.events.register('beforefeatureadded', this,
> function(feature){
>        if(vectorLayer.features.length = 1){
>            alert("false "+vectorLayer.features.length);
>            return false;
>        }else{
>            alert("true "+vectorLayer.features.length);
>            return true;
>        }
>    });
> 
> But even if I return false, the feature is added to the layer! :S
> 
> Any suggestion, please?
> 
> Thanks in advance!
> 
> Gilberto Ramos
> 
> -----
> just another web developer
> -- 
> View this message in context: http://osgeo-org.1803224.n2.nabble.com/Limit-total-Vector-Layer-points-to-be-drawn-tp5282918p5282918.html
> Sent from the OpenLayers Users mailing list archive at Nabble.com.
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-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.