[OpenLayers-Users] Basic GeoServer OpenLayers map

[Frank Broniewski]

Hello Steven,

unfortunately I have no experience with geoserver, but request URLs from 
Openlayers WMS are conform to the OGC standards and if geoserver is also 
conform there should'nt be a problem. A OL generated request from my 
application:

http://www.gis-hosting.lu/ogc/service/osm?LAYERS=label&STYLES=,,,&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A2169&BBOX=67416.666666,70311.458332975,88583.333334,81688.541667025&WIDTH=1200&HEIGHT=645

It is in the Net tab from firebug. Something like GET osm?LAYERS= ...

If you suspect the problem with geoserver you could try the WMS requests 
in your browser so you can be sure that they are working. If you think 
its a OL configuration problem please show your layer config code so 
that we can search there ...


A OL WMS Layer example:

new OpenLayers.Layer.WMS(
                 'WMS',
                 'http://www.gis-hosting.lu/ogc/service/osm',
                 {
                     layers: ['base','traffic','place-label'],
                     styles: ['','','',''], format: 'image/png'
                 },
                 {
                     isBaseLayer: true,
                     singleTile: true
                 }
             );

Frank


Am 23.04.2010 14:11, schrieb Steven Venter:
> Hi Frank
>
> Thanks for replying.
>
> I used firebug to look at the requests being sent to the server. The css
> stuff and the navigation items are requested but no request to fetch the
> image from the server.
>
> I used geoserver functionality to display the image in a page. I then cut
> and pasted that in to the code. I read on a tutorial site
> (http://vasir.net/blog/openlayers/openlayers-tutorial-part2-layers/) that
> some of the info for the request will be generated by openlayer, this site
> deals with MapServer so I tried to adapt that to geoserver.
>
> I will try what you suggested, but I’m not sure which parts of the request
> are auto generated.
>
> Steven
>
> -----Original Message-----
> From: Frank Broniewski [mailto:brfr at metrico.lu]
> Sent: 23 April 2010 08:17 AM
> To: ZAMap
> Subject: Re: [OpenLayers-Users] Basic GeoServer OpenLayers map
>
> Hi,
>
> did you already try to put the requested URL from the OpenLayers request
> in the address field of your browser and examine the response? I use
> Firebug for that and this already helps me alot for debugging WMS requests.
>
> Frank
>
> Am 22.04.2010 20:03, schrieb ZAMap:
>>
>> Hi all
>>
>> I'm trying to get a basic map displayed but keep getting bounds is null
>> error.
>>
>> None of the suggestions (allOverlays: true) that I found works, most
>> probably because of other issues with my code/setup.
>>
>> Code:
>>
>> function init() {
>>     var map = new OpenLayers.Map('map');
>>
>>     var layers = new OpenLayers.Layers.WMS(
>>       "basic",
>>       "http://localhost:8080/geoserver/wms",
>>       {layers: 'topp:states'}
>>
>>     map.addLayers(layers);
>>     map.zoomToMaxExtent();
>> }
>>
>> My geoserver is working, I can request the map and other data from the
>> server. Any pointers to good tutorials are welcome.
>>
>> Setup:
>> Ubuntu 9.10
>> GeoServer 2.0.1
>> Openlayers 2.8
>>
>> I would appreciate any help.
>
>


-- 
Frank BRONIEWSKI

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