我有一个动画,其中数据的范围变化很??大.我想有一个跟踪数据的最大值和最小值的颜色条(即我希望它不被修复).问题是如何做到这一点.

理想情况下,我希望颜色条在自己的轴上.

我尝试了以下四件事

1.天真的方法

问题：新的颜色条是每帧的绘图

#!/usr/bin/env python

"""

An animated image

"""

import numpy as np

import matplotlib.pyplot as plt

import matplotlib.animation as animation

fig = plt.figure()

ax = fig.add_subplot(111)

def f(x, y):

return np.exp(x) + np.sin(y)

x = np.linspace(0, 1, 120)

y = np.linspace(0, 2 * np.pi, 100).reshape(-1, 1)

frames = []

for i in range(10):

x += 1

curVals = f(x, y)

vmax = np.max(curVals)

vmin = np.min(curVals)

levels = np.linspace(vmin, vmax, 200, endpoint = True)

frame = ax.contourf(curVals, vmax=vmax, vmin=vmin, levels=levels)

cbar = fig.colorbar(frame)

frames.append(frame.collections)

ani = animation.ArtistAnimation(fig, frames, blit=False)

plt.show()

2.添加到图像

将上面的for循环更改为

initFrame = ax.contourf(f(x,y))

cbar = fig.colorbar(initFrame)

for i in range(10):

x += 1

curVals = f(x, y)

vmax = np.max(curVals)

vmin = np.min(curVals)

levels = np.linspace(vmin, vmax, 200, endpoint = True)

frame = ax.contourf(curVals, vmax=vmax, vmin=vmin, levels=levels)

cbar.set_clim(vmin = vmin, vmax = vmax)

cbar.draw_all()

frames.append(frame.collections + [cbar])

问题：这引起了提升

AttributeError: 'Colorbar' object has no attribute 'set_visible'

3.在自己的轴上绘图

问题：颜色栏未更新.

#!/usr/bin/env python

"""

An animated image

"""

import numpy as np

import matplotlib.pyplot as plt

import matplotlib.animation as animation

fig = plt.figure()

ax1 = fig.add_subplot(121)

ax2 = fig.add_subplot(122)

def f(x, y):

return np.exp(x) + np.sin(y)

x = np.linspace(0, 1, 120)

y = np.linspace(0, 2 * np.pi, 100).reshape(-1, 1)

frames = []

for i in range(10):

x += 1

curVals = f(x, y)

vmax = np.max(curVals)

vmin = np.min(curVals)

levels = np.linspace(vmin, vmax, 200, endpoint = True)

frame = ax1.contourf(curVals, vmax=vmax, vmin=vmin, levels=levels)

cbar = fig.colorbar(frame, cax=ax2) # Colorbar does not update

frames.append(frame.collections)

ani = animation.ArtistAnimation(fig, frames, blit=False)

plt.show()

2和4的组合.

问题：颜色条是不变的.

一个类似的问题是here发布,但看起来OP对固定的颜色条感到满意.