Matplotlib:如何设置当前图形? [英] Matplotlib: how to set the current figure?

问题描述

希望这是一个简单的问题，但我目前无法弄清楚.我想使用 matplotlib 显示 2 个图形，然后以交互方式使用它们.我创建的数字:

This is hopefully a simple question but I can't figure it out at the moment. I want to use matplotlib to show 2 figures and then use them interactively. I create the figures with:

import matplotlib
import pylab as pl

f1 = pl.figure()
f2 = pl.figure()

并且可以使用类似 MATLAB 的 pyplot 界面在两个图中绘制和绘制.随着

and can use the MATLAB-like pyplot interface to plot and draw in both figures. With

current_figure = pl.gcf()

我可以确定 pyplot 界面的当前活动图形，具体取决于我单击的图形.现在我想用 pyplot 界面为第一个图形绘制一些东西，但当前图形可以是其中之一.那么有没有类似的东西

I can determine the currently active figure for the pyplot interface, depending on which figure I clicked in. Now I want to draw something to the first figure with the pyplot interface but the current figure can be either of them. So is there something like

pl.set_current_figure(figure)

或任何解决方法?(我知道我可以使用面向对象的界面，但是对于交互式的东西，只需使用像 plot(x, y) 这样的命令就更好了)

or any workaround? (I know that I can use the object oriented interface but for interactive stuff just using commands like plot(x, y) is much nicer)

推荐答案

您可以简单地将图形 f1 设置为新的当前图形:

You can simply set figure f1 as the new current figure with:

pl.figure(f1.number)

另一种选择是给数字命名(或数字)，这可能有助于使代码更易于阅读:

Another option is to give names (or numbers) to figures, which might help make the code easier to read:

pl.figure("Share values")
# ... some plots ...
pl.figure("Profits")
# ... some plots ...

pl.figure("Share values")  # Selects the first figure again

事实上，数字数字"可以是字符串，可以说比简单的数字更明确.

In fact, figure "numbers" can be strings, which are arguably more explicit that simple numbers.

PS:pylab.figure() 的 pyplot 等价物是 matplotlib.pyplot.figure().

PS: The pyplot equivalent of pylab.figure() is matplotlib.pyplot.figure().

这篇关于Matplotlib:如何设置当前图形?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！