def createGraph(file,dist):
    with open(file) as json_file:
        json_data = json.load(json_file)
        grafo = {}

        print(len(json_data['features']))

        for p in json_data['features']:
            coord = p["geometry"]["coordinates"]
            s = p["properties"]["code"]
            inserisciMarker(m, coord[1], coord[0], s, "", "blue")
            #print(s)
            grafo[s] = {}
            grafo[s]["coords"] = coord
            grafo[s]["adjacent"] = []
            #print(coord)
            coordtuple = (coord[1],coord[0])
            for pp in json_data['features']:
                if s != pp["properties"]["code"]:
                    pptuple = (pp["geometry"]["coordinates"][1], pp["geometry"]["coordinates"][0])
                    d = geodesic(coordtuple, pptuple).km
                    if d < dist:
                        l = []
                        l.append(coordtuple)
                        l.append(pptuple)
                        inserisciLinea(m,l,"blue",3,0.2, d)
                        grafo[s]["adjacent"].append(pp["properties"]["code"])

        with open('data.json', 'w') as fp:
            json.dump(grafo, fp, indent=4)

        return grafo