[Geomoose-users] Mouseover map area to show pop up or link
Len Kne
lkne at houstoneng.com
Thu Jun 3 11:40:50 EDT 2010
Performance seems ok, you can try it at http://dev.houstoneng.net/geomoose.html. Hover over a parcel for 1 second and you should get a popup. It's different than passing over a marker in OL because the handler is triggered after a pause in mouse movement vs. going over the marker. The downside is there will be a lot of calls back to the server (could be an issue on a high use app) and in the case of parcels, the number of popups could get annoying to the person looking at the map. Might work better with point data.
Len
-----Original Message-----
From: Brent Fraser [mailto:bfraser at geoanalytic.com]
Sent: Thursday, June 03, 2010 10:05 AM
To: Len Kne
Cc: Geomooselist
Subject: Re: [Geomoose-users] Mouseover map area to show pop up or link
Len,
That's impressive! How's the performance?
Brent
Len Kne wrote:
> One way would be to use OL Hover handler - see
> http://openlayers.org/dev/examples/hover-handler.html. Basically it
> is going to make an ajax call to the identify service when the cursor
> hovers over a spot for a set time. The script below works in my
> testing environment... it could be enabled as a tool or in onLoadedMapbook().
>
>
>
> Len
>
>
>
> // Hover support on WMS and MapServr layers
>
> var popup;
>
> OpenLayers.Control.Hover =
> OpenLayers.Class(OpenLayers.Control, {
>
> defaultHandlerOptions: {
>
> 'delay': 500,
>
> 'pixelTolerance': 20,
>
> 'stopMove': false
>
> },
>
>
>
> initialize: function(options) {
>
> this.handlerOptions = OpenLayers.Util.extend(
>
> {}, this.defaultHandlerOptions
>
> );
>
> OpenLayers.Control.prototype.initialize.apply(
>
> this, arguments
>
> );
>
> this.handler = new OpenLayers.Handler.Hover(
>
> this,
>
> {'pause': this.onPause, 'move': this.onMove},
>
> this.handlerOptions
>
> );
>
> },
>
>
>
> onPause: function(evt) {
>
> var feature =
> Map.getLonLatFromPixel(evt.xy);
>
> var url =
> '/php/identify.php?';
>
> var layersArray =
> GeoMOOSE.getVisibleLayers();
>
> layers =
> layersArray.join(':');
>
> var requestOptions =
> OpenLayers.Request.GET({
>
> url:
> url,
>
> params:
> {'shape': 'POINT(' + feature.lon + ' ' + feature.lat + ')',
>
>
> 'layers': layers,
>
>
> '_moosetime': (new Date()).getTime() },
>
> async:
> false
>
> });
>
>
>
>
> if(requestOptions.responseText) {
>
> popup
> = new OpenLayers.Popup.FramedCloud("wms",
>
>
> Map.getLonLatFromPixel(evt.xy),
>
>
> null,
>
>
> requestOptions.responseText,
>
>
> null, false);
>
>
> Map.addPopup(popup);
>
> }
>
> },
>
>
>
> onMove: function(evt) {
>
> if (popup != null) {
>
> popup.destroy();
>
> popup = null;
>
> }
>
>
>
> // if this control sent an Ajax request (e.g.
> GetFeatureInfo) when
>
> // the mouse pauses the onMove callback could be
> used to abort that
>
> // request.
>
> }
>
> });
>
>
>
> hover = new OpenLayers.Control.Hover();
>
> Map.addControl(hover);
>
> hover.activate();
>
>
>
>
>
>
>
> *From:* FRANZ OKYERE [mailto:franzzoa at hotmail.com]
> *Sent:* Wednesday, June 02, 2010 4:28 PM
> *To:* Geomooselist
> *Subject:* Re: [Geomoose-users] Mouseover map area to show pop up or
> link
>
>
>
> Thanks,
>
>
>
> But is geomoose not based on open layers? If it is then what we can do
> in open layers should be possible in geomoose, right? I really need to
> do this so if you can point me in the right direction and show me
> which of the javascript files I should be editing that would be nice.
>
>
>
> Franz
>
> ----------------------------------------------------------------------
> --
>
> Date: Wed, 2 Jun 2010 14:29:24 -0500
> From: Bob.Basques at ci.stpaul.mn.us <mailto:Bob.Basques at ci.stpaul.mn.us>
> To: bfraser at geoanalytic.com <mailto:bfraser at geoanalytic.com>;
> franzzoa at hotmail.com <mailto:franzzoa at hotmail.com>
> CC: geomoose-users at lists.sourceforge.net
> <mailto:geomoose-users at lists.sourceforge.net>
> Subject: Re: [Geomoose-users] Mouseover map area to show pop up or
> link
>
> All,
>
>
>
> Not on the feature(s), but the layer name/metadata icon in the side menu.
>
>
>
> bobb
>
>
>
>
>
>> >> Brent Fraser <bfraser at geoanalytic.com
> <mailto:bfraser at geoanalytic.com>> wrote:
>
> You mean by simply moving the cursor over the feature but not clicking it?
> Geomoose no (as far as I know). OpenLayers has a hover handler so we
> might be able to use that...
>
> Brent Fraser
>
> FRANZ OKYERE wrote:
>> Hello all,
>>
>> I am using geomoose 2.2 and wish to do what google maps or bing maps
>> are able to do- i.e. mouseover a location on the map and then get
>> the popup showing up. Any ideas? Is such a thing possible at all in geomoose?
>>
>> Cheers.
>>
>> Franz
>>
>> GIS Specialist, Ghana.
>>
>>
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