在python中实时更新情节 [英] Updating a plot in python in real time
本文介绍了在python中实时更新情节的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
t = np.linspace(1,100,10000)
q = np.zeros(10000)
for n in np.arange(10000)
q [i] = func(t [i])
plt.plot(t,q)
plt.show()
然而,我希望这个情节能够动态更新,这样每次新元素 q
数组被计算,它被添加到绘图。如何做到这一点?
解决方案
从pylab import *
import time
ion()
tstart = time.time()#用于剖析
x = arange(0,2 * pi,0.01)#x对于我在一个(1 200)中的i,$ a
line,= plot(x,sin(x))
line.set_ydata(sin(x + i / 10.0) )#更新数据
draw()#重绘画布
打印'FPS:',200 /(time.time() - tstart)
从我发表的帖子中删除...
I have a python code in which I calculate a quantity for a large number of values of a parameter and then plot the quantity as a function of a parameter. Here is an example
t = np.linspace(1,100,10000)
q = np.zeros(10000)
for i in np.arange(10000)
q[i] = func(t[i])
plt.plot(t,q)
plt.show()
However I want that the plot to get dynamically updated such that every time a new element of the q
array is calculated it is added to the plot. How can I do that?
解决方案
from pylab import *
import time
ion()
tstart = time.time() # for profiling
x = arange(0,2*pi,0.01) # x-array
line, = plot(x,sin(x))
for i in arange(1,200):
line.set_ydata(sin(x+i/10.0)) # update the data
draw() # redraw the canvas
print 'FPS:' , 200/(time.time()-tstart)
ripped from the post i put in the comments ...
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