我的 matplotlib.pyplot 图例被切断 [英] My matplotlib.pyplot legend is being cut off

问题描述

我正在尝试使用matplotlib创建一个在图例的侧面具有图例的图.我可以看到正在创建绘图，但是图像边界不允许显示整个图例.

I'm attempting to create a plot with a legend to the side of it using matplotlib. I can see that the plot is being created, but the image bounds do not allow the entire legend to be displayed.

lines = []
ax = plt.subplot(111)
for filename in args:
    lines.append(plt.plot(y_axis, x_axis, colors[colorcycle], linestyle='steps-pre', label=filename))
ax.legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)

这将产生:

推荐答案

正如 Adam 所指出的，您需要在图形的一侧留出空间.如果您想微调所需的空间，您可能需要查看 add_axes 方法.

As pointed by Adam, you need to make space on the side of your graph. If you want to fine tune the needed space, you may want to look at the add_axes method of matplotlib.pyplot.artist.

下面是一个快速的示例:

Below is a rapid example:

import matplotlib.pyplot as plt
import numpy as np

# some data
x = np.arange(0, 10, 0.1)
y1 = np.sin(x)
y2 = np.cos(x)

# plot of the data
fig = plt.figure()
ax = fig.add_axes([0.1, 0.1, 0.6, 0.75])
ax.plot(x, y1,'-k', lw=2, label='black sin(x)')
ax.plot(x, y2,'-r', lw=2, label='red cos(x)')
ax.set_xlabel('x', size=22)
ax.set_ylabel('y', size=22)
ax.legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)

plt.show()

以及生成的图像:

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