我有一个带有以下两个功能的python文件Vis.py
:
import matplotlib.pyplot as plt
from matplotlib.widgets import Slider
def update(val): #needed for slider function of plot_test
pos = spos.val
ax.axis([pos,pos+10,-1,1])
fig.canvas.draw_idle()
def plot_test(data):
fig, ax = plt.subplots()
plt.subplots_adjust(bottom=0.25)
plt.plot(data)
plt.axis([0, 10, -1, 1])
axcolor = 'lightgoldenrodyellow'
axpos = plt.axes([0.2, 0.1, 0.65, 0.03], facecolor=axcolor)
spos = Slider(axpos, 'Pos', 0.1, 90.0)
spos.on_changed(update)
plt.show();
我正在尝试在单独的ipynb文件中使用plot_test函数:
%matplotlib notebook
from Vis import *
import numpy as np
t = np.arange(0.0, 200.0, 0.1)
s = np.sin(2*np.pi*t)
plot_test(s)
但是,该图没有显示,甚至没有空白。我尝试在%matplotlib inline
之前运行plot_test(s)
。这样可以显示情节,但是也摆脱了情节的互动性。
答案 0 :(得分:1)
更新函数引用ax
,这超出范围。一种解决方案是将更新功能放在plot_test
函数中。
import matplotlib.pyplot as plt
from matplotlib.widgets import Slider
def plot_test(data):
fig, ax = plt.subplots()
plt.subplots_adjust(bottom=0.25)
plt.plot(data)
plt.axis([0, 10, -1, 1])
axcolor = 'lightgoldenrodyellow'
axpos = plt.axes([0.2, 0.1, 0.65, 0.03], facecolor=axcolor)
spos = Slider(axpos, 'Pos', 0.1, 90.0)
def update(val): #needed for slider function of plot_test
pos = spos.val
ax.axis([pos,pos+10,-1,1])
fig.canvas.draw_idle()
spos.on_changed(update)
plt.show()
然后,保持笔记本部件不变
%matplotlib notebook
from Vis import *
import numpy as np
t = np.arange(0.0, 200.0, 0.1)
s = np.sin(2*np.pi*t)
plot_test(s)
为我带来所需的互动人物。