动画与matplotlib pcolormesh常规，我怎么初始化数据？ [英] Animation with pcolormesh routine in matplotlib, how do I initialize the data?

问题描述

我试图在动画一个matplotlib pcolormesh。我看过很多的使用包的动画，大多采用一维的情节套路的例子，其中有些与imshow（）。
首先，我婉使用FuncAnimation程序。我的问题是，第一，我不知道我是否可以初始化的情节。

I am trying to animate a pcolormesh in matplotlib. I have seen many of the examples using the package animation, most of them using a 1D plot routine, and some of them with imshow(). First, I wan to use the FuncAnimation routine. My problem is, first, that I do not know if I can initialize the plot

fig,ax = plt.subplots()
quad = ax.pcolormesh(X,Y,Z)

我已经尝试了几行简单：

I have tried a few simple lines:

fig,ax = plt.subplots()
quad = ax.pcolormesh([])

def init():
    quad.set_array([])
   return quad,

def animate(ktime):  
    quad.set_array(X,Y,np.sin(Z)+ktime)
return quad,

anim = animation.FuncAnimation(fig,animate,init_func=init,frames=Ntime,interval=200,blit=True)

plt.show（）

plt.show()

顺便说一句，我如何设置成标签和动画的情节？我可以动画标题，如果它显示了许多改变的时间？
谢谢

By the way, How do I set labels into and animated plot? Can I animate the title, if it is showing a number that changes in time? Thanks

推荐答案

我不知道为什么你的四= ax.pcolormesh（X，Y，Z）函数给了一个错误。你能后的错误？

I am not sure why your quad = ax.pcolormesh(X,Y,Z) function is giving an error. Can you post the error?

下面是我会做什么用pcolormesh创建一个简单的动画：

Below is what I would do to create a simple animation using pcolormesh:

import matplotlib.pyplot as plt
import numpy as np

y, x = np.meshgrid(np.linspace(-3, 3,100), np.linspace(-3, 3,100))

z = np.sin(x**2+y**2)
z = z[:-1, :-1]

ax = plt.subplot(111)

quad = plt.pcolormesh(x, y, z)

plt.colorbar()

plt.ion()
plt.show()

for phase in np.linspace(0,10*np.pi,200):
    z = np.sin(np.sqrt(x**2+y**2) + phase)
    z = z[:-1, :-1]

    quad.set_array(z.ravel())
    plt.title('Phase: %.2f'%phase)
    plt.draw()

plt.ioff()
plt.show()

一帧的：

One of the frames:

这是否帮助？如果没有，也许你可以厘清的问题。

Does this help? If not, maybe you can clarify the question.

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