def draw_svg(self,output,parent):
        startu = 0
        endu = 0
        for i in range(len(output)):
            for j in range(len(output[i])):
                if (output[i][j]==0):
                    self.draw_circle((int((startu+startu+1)/2),int((endu+endu+1)/2)),1,'black',parent,'id')
                    #dwg.add(dwg.circle((int((startu+startu+1)/2),int((endu+endu+1)/2)),1,fill='black'))        
                startu = startu+2                                                                               
            endu = endu+2
            startu = 0