0 
import matplotlib.image as mpimg
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation
from matplotlib.widgets import Button
from matplotlib.widgets import Slider
fig = plt.figure()
image_list =  ['downloads/20120831_194836_aia.lev1_euv_12s_4k.jpg', 'downloads/20120831_194936_aia.lev1_euv_12s_4k.jpg', 'downloads/20120831_195036_aia.lev1_euv_12s_4k.jpg']

list = []


for raw_image in image_list:
    image1 = mpimg.imread(raw_image)
    real_image1 = plt.imshow(image1)
    list.append([real_image1])


def update_plot(t):
    print(t)
    return list[t]


anim = animation.FuncAnimation(fig, update_plot, repeat = True, interval=1, blit=False,
                                repeat_delay=200)
plt.show()

我正在尝试使用列表中的 3 个 jpg 图像创建一个 func 动画。程序运行 3 张图像 1 次后，它给了我一个错误。当我打印“t”时，它永远不会重置为 0。

错误：

Traceback (most recent call last):
  File "/Users/jamisenma/opt/anaconda3/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 1194, in _on_timer
    ret = func(*args, **kwargs)
  File "/Users/jamisenma/opt/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1447, in _step
    still_going = Animation._step(self, *args)
  File "/Users/jamisenma/opt/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1173, in _step
    self._draw_next_frame(framedata, self._blit)
  File "/Users/jamisenma/opt/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1192, in _draw_next_frame
    self._draw_frame(framedata)
  File "/Users/jamisenma/opt/anaconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1755, in _draw_frame
    self._drawn_artists = self._func(framedata, *self._args)
  File "/Users/jamisenma/Library/Application Support/JetBrains/PyCharmCE2020.1/scratches/scratch_59.py", line 19, in update_plot
    return list[t]
IndexError: list index out of range

有谁知道问题是什么？

4

2 回答 2

1

解决了。我必须添加frames = len(list)作为参数FuncAnimation

于 2020-07-19T04:09:46.040 回答
0

您未能提供预期的MRE，并且没有进行预期的初始调试工作。因此，我不能确定。

但是，我最大的怀疑是 from 的返回update_plot，它使用了您未能向我们展示的参数 - 并将其用作隐藏预定义类型的全局序列的下标。

尝试使用这种简单的技术进行调试：

def update_plot(t):
    print("ENTER update_plot; t =", t, "\n list =", list)
    print(t)
    return list[t]

我希望，就在你失败之前，你会看到t >= len(list)。

一般提示：不要为变量指定与内置或预定义名称相同的名称。特别是改变list.

于 2020-07-19T03:33:40.833 回答