[OpenLayers-Users] Re: using Request.GET vs. Layer with strategy, protocol, format

[leopard01]

Hello listers,

My objective is: Fetching the file source (GMLv3) hosted in a different
server to my local application.

I have a similar problem like this post .. but its no clear for my if Sccot
solved his problem yet,
and i really appreciate yours help.

Corresponding to the option A sended by Sccot :

>//A:
>       var vector_layer = new OpenLayers.Layer.Vector("Stores");
>       map.addLayer(vector_layer);
>
>       OpenLayers.Request.GET({
>              url: "/kiosks_status_geoJSON/",
>              headers: {'Accept':'application/json'},
>              success: function (req)
>                       {
>                       var g = new OpenLayers.Format.GeoJSON();
>                       var feature_collection = g.read(req.responseText);
>                       //console.log(feature_collection);
>                       vector_layer.destroyFeatures();
>                       vector_layer.addFeatures(feature_collection);
>                       }
>          }); 


Im working with a GML.v3 format file, this file comes from another server
and is created with OGR2GOGR
specifications. The file is here:

http://200.85.231.185/sites/all/modules/sar/polygontheme.php?theme=trampas&user=7&plantacioncode=2040504

My problem is, most of the implementations runs his applications with
relative or absolute URLs to the
same machine ( or IP ) to the file source. But in my case, my application
run in a different IP that the file source.

Now my questions is, what is wrong with the next code ??. 

       var vector_layer = new OpenLayers.Layer.Vector("Layer_name");
       map.addLayer(vector_layer);

       OpenLayers.Request.GET({
              url:
"http://200.85.231.185/sites/all/modules/sar/polygontheme.php?theme=trampas&user=7&plantacioncode=2040504",
              headers: {'Accept':'application/xml'},
              success: function (req)
                       {
                       var g = new OpenLayers.Format.GML.v3();
                       var feature_collection = g.read(req.responseXML);
                       //console.log(feature_collection);
                       vector_layer.destroyFeatures();
                       vector_layer.addFeatures(feature_collection);
                       }
          }); 

Im stay using the web console from the WebDeveloper extension for Chrome or
Firefox, and the
last lines says:

-- GET
http://200.85.231.185/sites/all/modules/sar/polygontheme.php?theme=trampas&user=7&plantacioncode=2040504
[HTTP/1.1 200 OK 844ms]
-- no element found @
file:///home/user/Downloads/OpenLayers-2.11/examples/vector_remote_gml.html:1

vector_remote_gml.html .. is the file where im working .

Also i use a code similar to the A option mentioned before .. But this code
only work if the
applications runs in the same machine that the source file, here is:


	var Layer_tramp = new OpenLayers.Layer.Vector("Tramp_GML", 
		{
		strategies: [ new OpenLayers.Strategy.Fixed()  ],
		protocol: new OpenLayers.Protocol.HTTP({ 
			url:
"http:200.85.231.185/sites/all/modules/sar/polygontheme.php?theme=trampas&user=7&plantacioncode=2040504",
			format: new OpenLayers.Format.GML.v3(),
			 }),
		projection: new OpenLayers.Projection("EPSG:4326")
		}
	);
	map.addLayer(Layer_tramp);


Thanks a lot for the comments .. !


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