[OpenLayers-Users] Problems using Layer.WMS.Post

[David Alda Fernandez de Lezea]

Hello, thanks for your response. 

I'm trying to make it work in IE so I guess Firebug is not very useful in this case. Maybe I didn't mention, but it works in FF, Chrome and Safari, the only problematic browser is IE, which has the limitation I mentioned. Digging a little bit in the code I found that an OL class was missing to get WMS.Post work. This class was IFrame.js, but know I've got another error pointing this class:

In method 'createRequestForm'

form.action = OpenLayers.Util.urlAppend(this.layer.url, cacheId);

Saying that the object doesn't accept function urlAppend. Again, digging into the code I found that the class Util.js doesnt' have the function urlAppend, and I've started wondering how many classes do I have to update to make this work. Are there some instructions to apply this change or some info about the classes involved in this change??

Where I can find the new Util.js for download??


Thanks.


-----Mensaje original-----
De: users-bounces at openlayers.org [mailto:users-bounces at openlayers.org] En nombre de Andreas Hocevar
Enviado el: miércoles, 17 de febrero de 2010 17:33
Para: users at openlayers.org
Asunto: Re: [OpenLayers-Users] Problems using Layer.WMS.Post

Hi,

you should use firebug to see what requests were issued and what was returned. In your case, I suspect that the combination of LAYERS and SLD_BODY params is invalid and you don't get back an image from your WMS.

Regards,
Andreas.

On 2010-02-17 16:47, David Alda Fernandez de Lezea wrote:
> Hello list,
>
> I had som problems applying a SLD to a OpenLayers.Layer.WMS becuase of the mentioned problem of URL length in IE. I followed up the discussions about this solution and decided to apply it to my app. But I get an error when I try to apply an SLD and make it visible. I mean, I create the layer without any error:
>
> olLayers[0] = new OpenLayers.Layer.WMS.Post( "WMSLayer",url,
> 			{ transparent: 'true', layers: 
> 'RecintosSigpac,ParcelasSigpac,PoligonosSigpac'},{visibility: false, 
> displayInLayerSwitcher:false, isBaseLayer: false, units: 'm', 
> maxExtent: new OpenLayers.Bounds(460000, 4710000, 610000, 4820000), 
> maxResolution: 292.96875} );
>
> Then, later, I have some links that the user can click to apply some SLD's to some parcels. I create the SLD dynamically.
>
> var wms = this.map.getLayersByName("megaWMSLayer")[0];
> wms.mergeNewParams({SLD_BODY: sld});
> wms.setVisibility(true);
>
> And the problem comes in the line 'wms.setVisibility(true);'. Debugging the error, I found that it crashes in line 1275 character 174 of OpenLayers.js to be precise. This is the code of that line:
>
> tile.onLoadStart=function(){if(this.numLoadingTiles==0){this.events.tr
> iggerEvent("loadstart");}
> this.numLoadingTiles++;};
>
> And the variable tile is undefined.
>
> Is this a known problem or it's just my fault??.
>
> Any ideas??
>  
> Thanks in advance.
>  
> Un saludo,
>  
> ······································································
> ············
>
> David Alda Fernández de Lezea
> Lurralde eta Biodibertsitate Saila / Dpto. de Territorio y 
> Biodiversidad
>  
> IKT
> Granja Modelo s/n · 01192 · Arkaute (Araba)
>
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--
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.

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