[英]Plotting to 1 figure using multiple functions with Matplotlib, Python
I have a main program main.py
in which I call various functions with the idea that each function plots something to 1 figure.我有一个主程序
main.py
,我在其中调用了各种函数,其想法是每个函数都将某些内容绘制为 1 个数字。 ie all the function plots append detail to the 1 main plot.即所有函数图都将细节附加到 1 主图。
Currently I have it set up as, for example:目前我已将其设置为例如:
main.py:主要.py:
import matplotlib.pylab as plt
a,b,c = 1,2,3
fig = func1(a,b,c)
d,e,f = 4,5,6
fig = func2(d,e,f)
plt.show()
func1:功能1:
def func1(a,b,c):
import matplotlib.pylab as plt
## Do stuff with a,b and c ##
fig = plt.figure()
plt.plot()
return fig
func2:功能2:
def func2(d,e,f):
import matplotlib.pylab as plt
## Do stuff with d,e and f ##
fig = plt.figure()
plt.plot()
return fig
This approach is halfway there but it plots separate figures for each function instead of overlaying them.这种方法已经完成了一半,但它为每个函数绘制了单独的图形,而不是重叠它们。
How can I obtain 1 figure with the results of all plots overlaid on top of each other?如何获得 1 个图形,其中所有图的结果相互叠加?
It is much better to use the OO interface for this puprose.为此目的使用 OO 接口要好得多。 See http://matplotlib.org/faq/usage_faq.html#coding-styles
请参阅http://matplotlib.org/faq/usage_faq.html#coding-styles
import matplotlib.pyplot as plt
a = [1,2,3]
b = [3,2,1]
def func1(ax, x):
ax.plot(x)
def func2(ax, x):
ax.plot(x)
fig, ax = plt.subplots()
func1(ax, a)
func2(ax, b)
It seems silly for simple functions like this, but following this style will make things much much less painful when you want to do something more sophisticated.像这样的简单函数看起来很傻,但是当你想做一些更复杂的事情时,遵循这种风格会让事情变得不那么痛苦。
This should work.这应该有效。 Note that I only create one figure and use the
pyplot
interface to plot to it without ever explicitly obtaining a reference to the figure object.请注意,我只创建了一个图形并使用
pyplot
界面对其进行绘图,而从未明确获得对图形对象的引用。
import matplotlib.pyplot as plt
a = [1,2,3]
b = [3,2,1]
def func1(x):
plt.plot(x)
def func2(x):
plt.plot(x)
fig = plt.figure()
func1(a)
func2(b)
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