There are 8745 records in the database. That is why I tried to use the
cluster strategy in the first place without success because of the error
pointed out by Maxime.
So I tried with a smaller dataset and the wfs layer and the cluster
strategy works perfectly.
It's still doesn't work for the "big" dataset. So I guess there a too many
records. Even with the cluster strategy it doesn't load.
1- Does the cluster strategy should work for 8745 records requested from a
shapefile or postgis?
2- I cannot set the visibility of this vector layer to false. The request
is sent when the page load.
Here is the definition of my Vector layer:
var WFSstyle = new OpenLayers.Style({
pointRadius: "${radius}",
fillColor: "#71FF00",
fillOpacity: 0.5,
strokeColor: "#000",
strokeWidth: 2,
strokeOpacity: 0.3
}, {
context: {
radius: function(feature) {
return Math.min(feature.attributes.count,7) + 4;
}
}
});
wfsStrategy = new OpenLayers.Layer.Vector("HLM WFS Strategy",
{
strategies: [
new OpenLayers.Strategy.Fixed(),
new OpenLayers.Strategy.Cluster()
],
protocol: new OpenLayers.Protocol.HTTP({
url:
"http://geo.inspq.rtss.qc.ca/cgi-bin/mapserv.exe?map=/ms4w/paccSante/map/paccsante2.map";,
params: {
format: "WFS",
service: "WFS",
request: "GetFeature",
srs: "EPSG:900913",
VERSION : "1.0.0",
typename : 'HLM_shp_wfs2'
},
format: new OpenLayers.Format.GML()
}),
styleMap:new OpenLayers.StyleMap({
"default": WFSstyle,
"select": {
fillColor: "#8aeeef",
strokeColor: "#32a8a9"
}
})
},
{
extractAttributes:true,
visibility: false,
displayInLayerSwitcher: true
});
Steve Toutant, M. Sc.
Analyste en géomatique
Secteur environnement
Direction des risques biologiques, environnementaux et occupationnels
Institut national de santé publique du Québec
945, avenue Wolfe
Québec, Qc G1V 5B3
Tél.: (418) 650-5115 #5281
Fax.: (418) 654-3144
[email protected]
http://www.inspq.qc.ca
"Heidt, Christopher M." <[email protected]>
08/06/2009 11:02 AM
A
<[email protected]>, "Julien-Samuel Lacroix"
<[email protected]>, <[email protected]>
cc
Objet
RE: [OpenLayers-Users] Problem to load a WFS
How many features are you getting?
From: [email protected] [mailto:[email protected]]
On Behalf Of [email protected]
Sent: Monday, June 08, 2009 10:59 AM
To: Julien-Samuel Lacroix; [email protected]
Subject: Re: [OpenLayers-Users] Problem to load a WFS
In the console TAB there is a GET call to my WFS,
http://geo.inspq.rtss.qc.ca/cgi-bin/mapserv.exe?map=/ms4w/paccSante/map/paccsante2.map&typename=HLM_shp_wfs2&srsName=EPSG%3A900913&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&SRS=EPSG%3A900913&BBOX=-13586195.339050002,2515633.1906250007,-1219295.6609499985,12299572.809375
I can see the Params and the Header but the Reponse tab is empty. After
several minutes I got this message
Here is line #1481
return envelope;}},parseAttributes:function(node){var attributes={};var
childNode=node.firstChild;var
children,i,child,grandchildren,grandchild,name,value;while(childNode){if(childNode.nodeType==1){children=childNode.childNodes;for(i=0;i<children.length;++i){child=children[i];if(child.nodeType==1){grandchildren=child.childNodes;if(grandchildren.length==1){grandchild=grandchildren[0];if(grandchild.nodeType==3||grandchild.nodeType==4){name=(child.prefix)?child.nodeName.split(":")[1]:child.nodeName;value=grandchild.nodeValue.replace(this.regExes.trimSpace,"");attributes[name]=value;}}}}
If I call the link above directly int IE or Firefox I get the XML file.
Also the memory of computer jump to 3gig and I got to kill firefox (I'm on
windows)
thanks for your help,
Steve
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