[OpenLayers-Users] How to - severable clickable WFS layers ?

[Christopher Schmidt]

On Mon, Jun 08, 2009 at 03:59:03PM +0200, Asle Benoni wrote:
> Hi,
> I just wonder how I know if I have OpenLayers 2.8? I have downloaded from
> trunk but the date for OpenLayers.js is 31.03.2009. Or do I have to grab
> some special files. *map.layers* is my arrayname?
> 
> I tried your suggestion but when I write:
> selectControl = new OpenLayers.Control.SelectFeature(*map.layers*,{onSelect:
> onFeatureSelect, onUnselect: onFeatureUnselect});
>            map.addControl(selectControl);
>            selectControl.activate();
>            function onPopupClose(evt) {
>                 selectControl.unselect(selectedFeature);
>             }
> I get this error in Firebug and the page is blank:
> *layer.renderer is undefined
> *
> Does this mean I am still using too old OpenLayers.js?

No. It means you have passed in one or more layers in your array that
are *not* vector layers.

-- Chris

> /asle
> 2009/6/8 Eric Lemoine <eric.lemoine at camptocamp.com>
> 
> > On Sunday, June 7, 2009, Asle Benoni <asle.benoni at gmail.com> wrote:
> > > Hello,
> > > I have a map using a MapFish framework but I think this must be a
> > OpenLayers question.
> > > I have several WFS layers from GeoServer where I use the attributes to
> > fill the popup.  Only problem is that I can only click on markers in one
> > layer at a time. The user sees all the layers, some buildings, another layer
> > with churches etc. but can only click on on layer. How do I solve this? I
> > have now one layer for each type of buildings and I want to be able to turn
> > on and off different buildings so that is why they are in separate layers.
> > Is it possible to still use many layers and bee able to click on popups from
> > different layers. Or is my approach unnecessary difficult? Glad for any
> > help!
> > >
> > > I use this for the WFS layer:
> > >
> > >                 createWfsLayer(
> > >                     "Teknisk industri",
> > >                     "
> > http://naturkart.no:8080/geoserver/wfs?SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&SRS=EPSG%3A32633&BBOX=40484.8125,6401353.125,760135.8125,6687724.125",
> > {
> > >                         typename: "kulturminner_ns:tekniskindustrielt",
> > >                         srsName: "EPSG:32633",
> > >                         maxfeatures: 200},{
> > >                         extractAttributes:true,
> > >                         visibility:false
> > >                     }
> > >                  );
> > >
> > > ...same code for each layer....
> > >
> > > // Popup code, define for each layer with markers:
> > >          selectControl = new
> > OpenLayers.Control.SelectFeature(map.layers[0],{onSelect: onFeatureSelect,
> > onUnselect: onFeatureUnselect});
> > >            map.addControl(selectControl);
> > >            selectControl.activate();
> > >            function onPopupClose(evt) {
> > >                 selectControl1.unselect(selectedFeature);
> > >             }
> > >          selectControl1 = new
> > OpenLayers.Control.SelectFeature(map.layers[1],{onSelect: onFeatureSelect,
> > onUnselect: onFeatureUnselect});
> > >            map.addControl(selectControl1);
> > >            selectControl1.activate();
> > >            function onPopupClose(evt) {
> > >                 selectControl1.unselect(selectedFeature);
> > >             }
> > > // etc...... for every layer with marker
> >
> > Instead of creating one select control for each layer create only one
> > and give it all the layers:
> >
> > sc = new OpenLayers.Control.SelectFeature(array_of_layers, {...});
> >
> > you'll need OL 2.8 for this (or trunk)
> >
> > Cheers,
> >
> >
> > > // Now the popup functions used:
> > >
> > >         function onFeatureSelect(feature) {
> > >             selectedFeature = feature;
> > >             popup = new OpenLayers.Popup.FramedCloud("chicken",
> > >
> > feature.geometry.getBounds().getCenterLonLat(),
> > >                                      new OpenLayers.Size(100,200),
> > >                     "<h2>" +feature.attributes.gardsnavn +
> > >                     "</h2>Type: "+ feature.attributes.art +
> > >                      "<br />Kommune: "+ feature.attributes.komm +
> > >                      "<br />Beskrivelse<br /><a href='" +
> > feature.attributes.urltilpdfark +
> > >                      "' target=blank><img src='
> > http://naturkart.no:8080/geoserver/images/logo.png' border='0'
> > alt='naturkart'></a>", null, true, onPopupClose);
> > >             feature.popup = popup;
> > >             map.addPopup(popup);
> > >         }
> > >         function onFeatureUnselect(feature) {
> > >             map.removePopup(feature.popup);
> > >             feature.popup.destroy();
> > >             feature.popup = null;
> > >         }
> > >
> > >
> > >
> >
> > --
> > Eric Lemoine
> >
> > Camptocamp France SAS
> > Savoie Technolac, BP 352
> > 73377 Le Bourget du Lac, Cedex
> >
> > Tel : 00 33 4 79 44 44 96
> > Mail : eric.lemoine at camptocamp.com
> > http://www.camptocamp.com
> >

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-- 
Christopher Schmidt
MetaCarta