[OpenLayers-Dev] Problem with the developpement of a "overlay Strategy"

[Jerome Freyre]

Hi everybody,

Currently I am trying to developp a new strategy (based on
OpenLayers.Strategy.Cluster) that can modify the order of features (bigger
features go downer and small one go higher) to display features with correct
"overlay" or "superposition".

To do that, I found that I have to order my features.

Actually, I am loading my features with HTTP protocol (see:
http://www.nabble.com/Problem-with-Protocol-HTTP-and-vector-layer-tt20088456.html
;) ).

My "sort algorithm" seems to work because it is ordering features based on
the "overlayAttribute".

The problem appears when I select a feature that is "downer". When I
unselect it, the feature goes "higher" than the smaller one and stays like
this.

Has somebody got an idea to resolve this problem?

My strategy function : 
============================================
        if(this.features.length >= 2) {

			var tempArray = this.features;
			//alert('count = ' + this.features.length);
			for (var i=0; i<this.features.length; i++) {	
				for(var j=this.features.length-1; j>i;j--) {
					//alert('Comparaison de ' +
this.features[j].attributes[this.overlayAttribute] + ' et ' +
this.features[j-1].attributes[this.overlayAttribute]);
					if (parseInt(this.features[j].attributes[this.overlayAttribute]) >
parseInt(this.features[j-1].attributes[this.overlayAttribute])) {
						var tmp = this.features[j];
						this.features[j] = this.features[j-1];
						this.features[j-1] = tmp;
					}
				}
			}
		}

		alert('count = ' + this.features.length);
		var attr = "";
		for(var i=0; i<this.features.length; ++i) {
			attr += this.features[i].attributes[this.overlayAttribute] + ' \\ ';
		}

	if(this.features.length > 0) {
                 this.clustering = true;
                 // A legitimate feature addition could occur during this
                 // addFeatures call.  For clustering to behave well,
features
                 // should be removed from a layer before requesting a new
batch.
				 this.layer.removeFeatures();
                 this.layer.addFeatures(this.features);
                 this.clustering = false;
             }
============================================
 
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