Use this class to create proportional symbols on a map.
Mandatory options are :
Example usage :
new mapfish.GeoStat.ProportionalSymbol(this.map, {
    minSize: 5,
    maxSize: 15,
    idAttribute:
});| mapfish. | Use this class to create proportional symbols on a map. | 
| Properties | |
| minSize | {Integer} The minimum radius size | 
| maxSize | {Integer} The maximum radius size | 
| Constructor | |
| OpenLayers. | |
| Functions | |
| updateOptions | Method used to update the properties indicator, minSize and maxSize. | 
| applyClassification | This function loops over the layer’s features and applies already given classification. | 
| map | {OpenLayers.Map} OpenLayers map object | 
| options | {Object} Hashtable of extra options | 
Method used to update the properties indicator, minSize and maxSize.
updateOptions: function( newOptions ) 
This function loops over the layer’s features and applies already given classification.
applyClassification: function( options )