matplotlib - 从一个图形复制到另一个图形? [英] matplotlib - duplicate plot from one figure to another?

问题描述

我是matplotlib的新手.我想要做的是编写代码，将几个数字保存到 eps 文件中，然后生成一个复合数字.基本上我想做的是像

I'm somewhat new to matplotlib. What I'm trying to do is write code that saves several figures to eps files, and then generates a composite figure. Basically what I'd like to do is have something like

def my_plot_1():
    fig = plt.figure()
    ...
    return fig.

def my_plot_2():
    fig = plt.figure()
    ...
    return fig

def my_combo_plot(fig1,fig2):
    fig = plt.figure()
    gs = gridspec.GridSpec(2,2)
    ax1 = plt.subplot(gs[0,0])
    ax2 = plt.subplot(gs[0,1])
    ax1 COPY fig1
    ax2 COPY fig2
    ...

然后在以后我可以做类似的事情

where then later I could do something like

my_combo_plot( my_plot_1() , my_plot_2() )

并从前两个函数返回的绘图中复制了所有数据和设置，但我不知道如何使用matplotlib来完成此操作.

and have all the data and settings get copied from the plots returned by the first two functions, but I can't figure out how this would be done with matplotlib.

推荐答案

由于 pyplot 有点像状态机，我不确定您的要求是否可行.相反，我会考虑绘制代码，例如:

Since pyplot kind of works like a state machine, I'm not sure if what you are asking for is possible. I would instead factor out the drawing code, something like this:

import matplotlib.pyplot as plt

def my_plot_1(ax=None):
    if ax is None:
        ax = plt.gca()
    ax.plot([1, 2, 3], 'b-')

def my_plot_2(ax=None):
    if ax is None:
        ax = plt.gca()
    ax.plot([3, 2, 1], 'ro')

def my_combo_plot():
    ax1 = plt.subplot(1,2,1)
    ax2 = plt.subplot(1,2,2)
    my_plot_1(ax1)
    my_plot_2(ax2)

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