+ elsif params['bbox']
+ bbox = params['bbox'].split(",")
+
+ @lon = ( bbox[0].to_f + bbox[2].to_f ) / 2.0
+ @lat = ( bbox[1].to_f + bbox[3].to_f ) / 2.0
+ @zoom = 16
+
+ elsif params['minlon'] and params['minlat'] and params['maxlon'] and params['maxlat']
+ @lon = ( params['maxlon'].to_f + params['minlon'].to_f ) / 2.0
+ @lat = ( params['maxlat'].to_f + params['minlat'].to_f ) / 2.0
+ @zoom = 16
+