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<p class=MsoPlainText>Alexandre,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Thanks for the help! After a bit of fiddling, I'm not
plotting my own features on the map and getting the pop-ups to work. I started
with the sample code and hacked that up a bit. At this point, I'm still not
sure why it's working, but since it is, investigation is much easier. <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>I spent some time understanding the source for OpenLayer.Handler.Point
and family; that was very helpful. My complements to the authors (not sure if
that's you), OpenLayers is very well thought-out & implemented.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Regards,<o:p></o:p></p>
<p class=MsoPlainText>gene<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>-----Original Message-----<br>
From: Alexandre Dube [mailto:adube@mapgears.com] <br>
Sent: Friday, January 16, 2009 10:50 AM<br>
To: Gene Sally<br>
Cc: users@openlayers.org<br>
Subject: Re: [OpenLayers-Users] Understanding layers and popups</p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Hi Gene,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Did you look this example : <o:p></o:p></p>
<p class=MsoPlainText>http://openlayers.org/dev/examples/select-feature-openpopup.html<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>What you're trying to do seems to be displayed there.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>You should also look at the draw features example :<o:p></o:p></p>
<p class=MsoPlainText>http://openlayers.org/dev/examples/draw-feature.html<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Also, your vector layer must be on top of all others for
this to work. <o:p></o:p></p>
<p class=MsoPlainText>Or, layers on top must not be visible or not inRange.<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Best of luck,<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Alexandre<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Gene Sally wrote:<o:p></o:p></p>
<p class=MsoPlainText>> Hi,<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> I've been slogging through getting this to work (my
map renders on the page now) and I'm having trouble getting my head around how
layers and the click/hover callbacks work. The goal is to get a popup working
on arbitrary points added to the map.<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> I have a map with an Image baselayer and a Vector
layer where the features have been added, like so<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> var newPoint = new OpenLayers.Feature.Vector(new
OpenLayers.Geometry.Point());<o:p></o:p></p>
<p class=MsoPlainText>> var lonlat = map.getLonLatFromPixel(new
OpenLayers.Pixel(x,y));<o:p></o:p></p>
<p class=MsoPlainText>> newPoint.geometry.x = lonlat.lon;<o:p></o:p></p>
<p class=MsoPlainText>> newPoint.geometry.y = lonlat.lat;<o:p></o:p></p>
<p class=MsoPlainText>> targetLayer.drawFeature(newPoint,
OpenLayers.Util.extend(OpenLayers.Feature.Vector.style['default'], {}));<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> So far so good! The points appear in the
targetLayer as expected. (But, when I use the zoom control, they don't zoom
with the map, but that's another day's problem...)<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> I added a OpenLayers.Control.SelectFeature<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> selectControl = new OpenLayers.Control.SelectFeature(<o:p></o:p></p>
<p class=MsoPlainText>> targetLayer,<o:p></o:p></p>
<p class=MsoPlainText>> {onSelect: onTargetSelect,
onUnselect: onTargetUnselect});<o:p></o:p></p>
<p class=MsoPlainText>> selectControl.activate();<o:p></o:p></p>
<p class=MsoPlainText>> map.addControl(selectControl);<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> When click on a newPoint on the map, the reaction is
like I'm selecting the baselayer. What I can't figure out is how to make the
targetLayer the active layer, as from reading the mail logs, it appears like
the SelectFeature works for the active layer. I've read/reread the
sundials.html code (as that's close to the affect I want) and can't figure out
what I'm doing wrong.<o:p></o:p></p>
<p class=MsoPlainText>><o:p> </o:p></p>
<p class=MsoPlainText>> With Regards,<o:p></o:p></p>
<p class=MsoPlainText>> gene<o:p></o:p></p>
<p class=MsoPlainText>> _______________________________________________<o:p></o:p></p>
<p class=MsoPlainText>> Users mailing list<o:p></o:p></p>
<p class=MsoPlainText>> Users@openlayers.org<o:p></o:p></p>
<p class=MsoPlainText>> http://openlayers.org/mailman/listinfo/users<o:p></o:p></p>
<p class=MsoPlainText>> <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>-- <o:p></o:p></p>
<p class=MsoPlainText>Alexandre Dubé<o:p></o:p></p>
<p class=MsoPlainText>Mapgears<o:p></o:p></p>
<p class=MsoPlainText>www.mapgears.com<o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
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