[OpenLayers-Users] Sort of Feature switcher

[Arnd Wippermann]

Sorry,

I have not tested the page with IE. There was some console.log which only
understand by FF. Now I have updated the page. I had to clear the IE cache
to get the page correct loaded.

The checkboxes should toggle between visibility of the features and the
radiobuttons are for selecting a feature.

Arnd Wippermann

-----Ursprüngliche Nachricht-----
Von: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] Im
Auftrag von darrepac
Gesendet: Freitag, 17. Oktober 2008 23:19
An: users at openlayers.org
Betreff: Re: [OpenLayers-Users] Sort of Feature switcher


Hi Arnd,

I am still playing with your example.
What I do not understand perfectly is the role of the checkbox beside the
feature name. It should be to toggle between visible and unvisible but it
works only if first I select on the map the feature. If not unchecking many
elements is doing nothing...like if there was a missing call to redraw
feature.
Same if I succeed to make one feature invisible, I can't get it visible
again...

I think there is one detail missing which doesn't make it work, but I like
the concept

thanks!





Arnd Wippermann wrote:
> 
> Hi Pascal,
> 
> Interesting problem. I have added some functionality to the last example.
> Perhaps it helps.
> 
> I use a stylemap with addUniqueValueRules for the gml layer with a 
> rule for attribute visibility.
> If the attribute visibility = "visible" the feature is visible.
> To change the visibility, I change the attribute of the feature to 
> "hidden"
> and redraw the feature.
> 
> I'm not sure, if it's the straight way, to change the visibility of 
> features.
> 
> http://gis.ibbeck.de/ginfo/apps/OLExamples/OL26/examples/select-featur
> e-with
> -function.html
> 
> Arnd Wippermann
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: users-bounces at openlayers.org 
> [mailto:users-bounces at openlayers.org] Im Auftrag von darrepac
> Gesendet: Donnerstag, 16. Oktober 2008 20:48
> An: users at openlayers.org
> Betreff: [OpenLayers-Users] Sort of Feature switcher
> 
> 
> Hello,
> 
> Thanks to Arnd, I have implemented a GML layer with some polygons on 
> top of an other layer (now WMS). Some polygons are one over an other 
> and sometimes, it is simply not possible to select one polygon as it 
> is behind some others.
> For this reason and also to ease the User Experience, I would like to 
> have a sort of Feature Switcher:
> Like the current layer switcher but instead of just viewing/uviewing 
> the different layer, I would like also to view/unview each feature of 
> my GML file.
> So the user would be able to view only some specific polygon features.
> 
> Is there some way to do this?
> thanks
> --
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