[OpenLayers-Dev] is beforefeatureadded working properly?

[Esteban olm]

Hi,

I have seen I'm not using last version of Openlayers.
I will try to see how version 2.8 works, and if it does the same thing, I
will report it.

I'm sorry, but the link you gave me doesn't work.

2009/7/1 Andreas Hocevar <ahocevar at opengeo.org>

> Hi,
>
> On Wed, Jul 1, 2009 at 6:42 PM, Esteban olm<esteban.olm at gmail.com> wrote:
> > Hi,
> >
> > I have something like:
> >
> > ---------------------------
> >         var MLayerTemp =(...) //New vertor layer
> >
> >         MLayerTemp.events.register("beforefeatureadded", MLayerTemp,
> >             function(MElemento){
> >                 MElemento.object.removeFeatures([MElemento.feature]);
> >                 MElemento.object.destroyFeatures();
> >                 return true;
> >             }
> >         );
> >
> > //And then  I add the OpenLayers.Control.DrawFeature to the map
> > ---------------------------
> >
> > The problem is that whe the event function is called, the feature is not
> in
> > the screen map, but it is in the features array of the layer.
>
> You are right, this is a bit odd. You can register for the
> "beforefeaturesadded" event instead, this gets triggered before
> features are added to the features array.
>
> > So the problem is:
> >
> >  If I need to delete all features before inserting the new one, I can not
> do
> > something like:
> >
> > ---------------------------
> >             function(MElemento){
> >                 MElemento.object.destroyFeatures();
> >                 return true;
> >                 }
> > ---------------------------
> > Becouse this erases also the new feature I try to insert!!
> >
> > Is it normal that the new feature to insert is already in the feature
> > layers' Array?
> > I think it shoul not to be in the array, so we have not decided yet if it
> > can be inserted or not.
> >
> > Anyway, another problem: If I return false... The feature is inserted!!!
> > The documentatio says it should not be inserted.
>
> Right. Also odd. It is inserted, but not drawn on the map. Maybe you
> want to create a ticket and report this issue?
> (http://trac.openlayers.org/wiki/HowToFileTickets)
>
> Regards,
> Andreas.
>
> >
> > Any help will be appreciated,
> > Thanks
> >
> >    Esteban Olm
> >
> >
> >
> > _______________________________________________
> > Dev mailing list
> > Dev at openlayers.org
> > http://openlayers.org/mailman/listinfo/dev
> >
> >
>
>
>
> --
> Andreas Hocevar
> OpenGeo - http://opengeo.org/
> Expert service straight from the developers.
>
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