clusterStyle (castefa)

gistfile1.txt

var clusterStyle =  new OpenLayers.StyleMap({ // l'estil
        'default': new OpenLayers.Style({
                fillColor: 'red',
                fillOpacity: 0.5, 
                strokeColor: 'red',
                strokeOpacity: 0.9,
                strokeWidth: 2,
                pointRadius: '${radius}',
                label: '${count}',
                labelOutlineWidth: 1,
                fontColor: "#222",
                fontWeight: "bold",
                //fontStrokeColor: "#222", fontStrokeWidth: 1, fontOpacity: 0.8,
                fontSize: "10px"
            }, {
                context: {
                    radius: function(feature) {
                        var num = feature.attributes.count;
                        return Math.log(num)*9+2;
                    }
                }
        }),
        'select': {fillColor: '#8aeeef'}
    });