Thanks for the update Andreas!
So now, it works... almost! Now, there is a problem when I apply the
selected style: when I add the layer without a style, it works, but when I
try to apply a style to a layer with a SLD file, it doesn't work. What is
quite strange is that, when I load a layer, I can see the layer while 1
second, until the style is effectively applied! Here is the code for my
"add layer" button, which allows to load a selected layer from my tree. I
apply the layer style at this moment because it avoids to load all the
style when I build my tree. The style is loaded only when the layer is
added.
bbar: ['->',{
text: "Add to the map",
handler: function() {
var node = layerCatalog.getSelectionModel().getSelectedNode();
if(node) {
var sld;
var layername = node.attributes.layer.name;
var url_sld = "sld/"+layername+".xml";
var format_sld = new OpenLayers.Format.SLD();
function setLayerStyles() {
// set the default style for each layer from sld
for (var l in sld.namedLayers) {
var styles =
sld.namedLayers[l].userStyles, style;
for (var i=0,ii=styles.length; i<ii;
++i) {
style = styles[i];
node.attributes.layer.styleMap.styles["default"] = style;
break;
}
}
}
function complete(req) {
sld = format_sld.read(req.responseXML ||
req.responseText);
setLayerStyles();
}
OpenLayers.loadURL(url_sld, null, null, complete);
mapPanel.map.addLayer(node.attributes.layer);
}
}
}]
Any idea?
Geoffrey
On Tue, 19 Jul 2011 12:54:34 +0200, Andreas Hocevar <[email protected]>
wrote:
Hi,
you may want to have a look at the updated sld example
(http://openlayers.org/dev/examples/sld.html). Especially at the
setLayerStyles function in http://openlayers.org/dev/examples/sld.js,
which shows you how to link the styles to an already existing StyleMap
of a layer.
Andreas.
On Tue, Jul 19, 2011 at 8:26 AM, gbrun <[email protected]> wrote:
Thanks for your reply!
So I tried to so something with the LoadURL. The SLD file is well
called (I
can see it in firebug), but the problem is that I now don't know how to
link
it with its layer. I'm still a newbie in webmapping. I think, what I
want to
do is quite easy, but I'm still not used to! Here is my current code:
createWFSLayer: function(data, featureType) {
//Style definition
var sld;
var layername = featureType.name;
var url_sld = "sld/"+layername+".xml";
var format_sld = new OpenLayers.Format.SLD();
OpenLayers.loadURL(url_sld, null, null, complete)
function getDefaultStyle(sld, layerName) {
var styles =
sld.namedLayers[layerName].userStyles;
var style;
for(var i=0; i<styles.length; ++i) {
style = styles[i];
if(style.isDefault) {
break;
}
}
return style;
};
function complete(req) {
sld = format_sld.read(req.responseXML ||
req.responseText);
var styleMap = new OpenLayers.StyleMap({
"default":
getDefaultStyle(sld, layername)
});
return styleMap;
}
var styleWFS = {styleMap: styleMap}
//Layer options
var layerOptions, protocolOptions;
//Layer options definition
protocolOptions = {
url:
data.capability.request.getfeature.href.post,
featureType: featureType.name,
featureNS: featureType.featureNS,
outputFormat: "json",
readFormat: new
OpenLayers.Format.GeoJSON()
};
//Layer protocol definition
layerOptions = {
protocol: new
OpenLayers.Protocol.WFS(protocolOptions),
strategies: [new
OpenLayers.Strategy.Fixed()]
};
return new OpenLayers.Layer.Vector(
featureType.title,
layerOptions,
styleWFS
);
},
My problem comes from the "complete" function. I can't get its result
for
the styleMap property of my layer!
Geoffrey
On Mon, 18 Jul 2011 18:17:07 +0200, Arnd Wippermann
<[email protected]>
wrote:
Hi,
As far as I know you can't load data with OpenLayers.Format.SLD(url).
You
have to do it with an ajax call, i.e LoadUrl.
Arnd
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von gbrun
Gesendet: Montag, 18. Juli 2011 12:32
An: [email protected]
Betreff: [OpenLayers-Users] Call a SLD file for a Vector Layer
Hi list!
I would like to apply SLD styles to my vector layers. It should work
like
in
this example : http://www.openlayers.org/dev/examples/sld.html
But what I want to do is a little bit different: each layer has its own
style. So I want that each vector layer calls its default style from a
folder in my web application where styles are stored with the same
name as
their specific layer. For example, my application has a vector layer
named
"vector". In this case, this layer must called a SLD file named
"vector.xml".
The OpenLayers example uses a "OpenLayers.LoadURL()" method. I'm
looking
for
a different way: I would like to read the SLD response without this
method.
It should look like this:
var url_sld = "../sld/"+featureType.name+".xml";
var format_sld = new
OpenLayers.Format.SLD(url_sld);
processResponse : function (response){
var sld =
format_sld.read(response.responseXML ||
response.responseText);
};
But it doesn't work. I think, there is something that I don't
understand
when I read the SLD response.
Can someone clarify me this?
Geoffrey
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