如何将传奇从情节中排除 [英] How to put the legend out of the plot

问题描述

我在一个图中制作了一系列 20 个图(不是子图).我希望图例在框外.同时，我不想改变轴，因为图形的大小变小了.请帮助我解决以下问题:

1. 我想将图例框保留在绘图区域之外.(我希望图例位于情节区域的右侧).
2. 有没有办法减小图例框内文本的字体大小，使图例框的大小变小.

解决方案

• 您可以通过指定 FontProperties 的 set_size 来缩小图例文本.
• 资源:

  • • 正如 Mateen Ulhaq 所述，fontsize='xx-small' 也无需导入 FontProperties 即可工作.

    plt.legend(handles=[p1, p2], title='title', bbox_to_anchor=(1.05, 1), loc='upper left', fontsize='xx-小')

    I have a series of 20 plots (not subplots) to be made in a single figure. I want the legend to be outside of the box. At the same time, I do not want to change the axes, as the size of the figure gets reduced. Kindly help me for the following queries:

    1. I want to keep the legend box outside the plot area. (I want the legend to be outside at the right side of the plot area).
    2. Is there anyway that I reduce the font size of the text inside the legend box, so that the size of the legend box will be small.

    解决方案

    • You can make the legend text smaller by specifying set_size of FontProperties.
    • Resources:
      • Legend guide
      • matplotlib.legend
      • matplotlib.pyplot.legend
      • matplotlib.font_manager
        • set_size(self, size)
        • Valid font size are xx-small, x-small, small, medium, large, x-large, xx-large, larger, smaller, None
      • Real Python: Python Plotting With Matplotlib (Guide)

    import matplotlib.pyplot as plt
    from matplotlib.font_manager import FontProperties
    
    fontP = FontProperties()
    fontP.set_size('xx-small')
    
    p1, = plt.plot([1, 2, 3], label='Line 1')
    p2, = plt.plot([3, 2, 1], label='Line 2')
    plt.legend(handles=[p1, p2], title='title', bbox_to_anchor=(1.05, 1), loc='upper left', prop=fontP)
    

    • As noted by Mateen Ulhaq, fontsize='xx-small' also works, without importing FontProperties.

    plt.legend(handles=[p1, p2], title='title', bbox_to_anchor=(1.05, 1), loc='upper left', fontsize='xx-small')
    

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