使用Maltpoltlib对具有轮廓的pcolormesh进行动画处理 [英] Animating a pcolormesh with contours with maltpoltlib
问题描述
我正在做某事:我需要及时地,表面上生动地说明热的进展.
I am working on something : I need to vizualize the progress of, let us say heat, in time and on a surface.
我在给带有轮廓的pcolormesh动画时遇到了一些麻烦:轮廓确实是动画的,但是pcolormesh却不是;我只会得到第一个永远不会被替换的.
I'm having some troubles animating a pcolormesh with contours : the contour is indeed animated, but the pcolormesh is not ; I only get the first one that is never replaced.
我的代码很像这样:
#x, y and z_temp are previously extracted from an Excel file
z=np.zeros(time,y,x)
for t in range(time):
for m in range(len(y)):
for n in range(len(x)):
z[t][m][n] = z_temp[t]
x,y=np.meshgrid(x,y)
im = ax.contour(x, y, z[0], 20)
fond = ax.pcolormesh(x, y, z[0], cmap=cm.get_cmap('afmhot_r'))
def animate(t):
print(t)
ax.cla()
fond = ax.pcolormesh(x, y, z[t], cmap=cm.get_cmap('afmhot_r'))
im = ax.contour(x, y, z[t], 20, cmap=cm.get_cmap('cool'))
return im, fond,
ani = anima.FuncAnimation(fig, animate, frames=time, interval=400, repeat_delay=1000)
plt.show()
I tried to get inspired by this post : Animation with pcolormesh routine in matplotlib, how do I initialize the data? as well as others that dealt with animation this time, but I seem incapable of combining the solutions I found. Following the solution of the link, I ended up having nothing at all...
有人可以帮忙吗?
也许我应该更具体地说明我的其他尝试.我将"def animate(t)"部分替换为仅获得轮廓但仍然具有动画效果的东西:
Maybe I should be more specific about my other attempt. I replaced the "def animate(t)" section by something that got me only the contour, but still animated :
def init():
fond.set_array(np.array([]))
return im, fond,
def animate(t):
print(t)
ax.cla()
fond.set_array(z[t])
im = ax.contour(x, y, z[t], 20, cmap=cm.get_cmap('cool'))
return im, fond,
推荐答案
除了一些编码错误之外,我不明白为什么这在功能上不起作用.这个最小的示例同时更新了 pcolormesh
和 contour
.您可以测试一下是否适合您吗?
Beyond some coding errors, I don't see why this functionally wouldn't work. This minimal example updates both the pcolormesh
and contour
's without a problem. Could you test this to see if it works for you?
import numpy as np
import matplotlib.pylab as plt
import matplotlib.animation as animation
time = 10
x = np.linspace(0,5,6)
y = np.linspace(0,6,7)
z = np.random.random((time, y.size, x.size))
fig = plt.figure()
ax = plt.subplot(111)
im = ax.contour(x, y, z[0], 20)
fond = ax.pcolormesh(x, y, z[0], cmap=plt.cm.get_cmap('afmhot_r'))
def animate(t):
print(t)
ax.cla()
fond = ax.pcolormesh(x, y, z[t], cmap=plt.cm.get_cmap('afmhot_r'))
im = ax.contour(x, y, z[t], 20, cmap=plt.cm.get_cmap('cool'))
return im, fond,
ani = animation.FuncAnimation(fig, animate, frames=time, interval=400, repeat_delay=1000)
plt.show()
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