Python turtle 模块，showturtle() 实例源码

def plot_table(self, *gamma, colors=['red', 'green', 'blue'], draw_speed=16, scale_x=1):
        """Plot gamma table"""
        if len(gamma) == 1 and len(gamma[0]) == 3:
            gamma = gamma[0]
        if all(x == gamma[0] for x in gamma):
            gamma = gamma[:1]

        turtle.penup()
        turtle.tracer(0, 16)
        turtle.speed(0)
        turtle.color('black')
        for color, points_y in enumerate(gamma):
            if len(gamma) == len(colors):
                turtle.color(colors[color])
            elif len(colors) == 1:
                turtle.color(colors[0])
            for x, y in enumerate(points_y):
                trace = x and x % draw_speed == 0
                if trace:
                    turtle.tracer(1)
                turtle.setposition(x * scale_x, y)
                if trace:
                    turtle.tracer(0)
                if x == 0:
                    turtle.showturtle()
                    turtle.pendown()

            turtle.penup()
            turtle.hideturtle()
            turtle.update()

def tscheme_showturtle():
    """Make turtle visible."""
    _tscheme_prep()
    turtle.showturtle()
    return okay

def tscheme_showturtle():
    """Make turtle visible."""
    _tscheme_prep()
    turtle.showturtle()
    return okay

def tscheme_showturtle():
    """Make turtle visible."""
    _tscheme_prep()
    turtle.showturtle()
    return okay

def draw_floor(floornum: int):
    global current_floor
    current_floor = floornum

    node_coords = utils.get_node_coords(utils.Direction.left) 

    if floornum == len(full_floors):
        rooms = []
        # All edges with rooms
        print('Showing everything')
        edges = chain.from_iterable(chain(((True, e) for e in edges[0]), ((False, e) for e in edges[1])) for _, edges in full_floors)
        # Edges with elevation changes
        #edges = set(chain.from_iterable((edge(v, n) for n in b.values() if set(['u', 'd']) & set(utils.get_graph().edgedata[edge(v, n)]['rooms'])) for v, b in enumerate(utils.get_graph().branches)))
        # All edges
        #...
    elif floornum >= 0 and floornum < len(full_floors):
        rooms, edges = full_floors[floornum]
        print(edges)
        edges = chain(((True, e) for e in edges[0]), ((False, e) for e in edges[1]))
        print(rooms)
    else:
        return

    turtle.showturtle()
    turtle.speed(0)
    turtle.clear()

    written_nodes = set()

    for edge_dir, (a, b) in edges:
        turtle.penup()
        x, y, _ = node_coords[a]
        turtle.goto(x / SHRINK + X_OFFSET, y / SHRINK + Y_OFFSET)
        if a not in written_nodes:
            turtle.write(a)
            written_nodes.add(a)

        turtle.pendown()

        if edge_dir:
            if edge_lengths[edge(a, b)] <= 0:
                turtle.pencolor('red')
            else:
                turtle.pencolor('black')
        else:
            if edge_lengths[edge(a, b)] <= 0:
                turtle.pencolor('blue')
            else:
                turtle.pencolor('green')

        x, y, _ = node_coords[b]
        turtle.goto(x / SHRINK + X_OFFSET, y / SHRINK + Y_OFFSET)
        turtle.pencolor('black')
        if b not in written_nodes:
            turtle.write(b)
            written_nodes.add(b)

    turtle.hideturtle()
    turtle.done()