if self.counter != 0:
            self.xs.append(event.xdata)
            xglobal= event.xdata
            print("Coordenada X:", xglobal)
            self.ys.append(event.ydata)
            yglobal = event.ydata
            print("Coordenada Y:", yglobal)
            array = [xglobal, yglobal]
            i = 0;
            polyarray = array;
            print ("Array:", polyarray)