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如何修复matplotlib检测错误的字体粗细？
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如何修复matplotlib检测错误的字体粗细？
作者:
春风助手
发布时间:
2024-04-18 11:45:02 (4天前)
<p>我从Google字体下载了字体，希望将其用于论文和所有情节，即Alegreya字体家族。在将字体安装到$ HOME / .fonts之后，我删除了.cache / matplotlib / fontList.cache并使用rcParams中的新font.family =‘Alegreya Sans’创建了一个绘图。不幸的是，matplotlib将Alegreya Sans 的Thin字体检测为常规字体。下面的最小示例说明了错误检测：</p> <pre><code>import matplotlib.font_manager weights = ['ultralight', 'light', 'normal', 'regular', 'book', 'medium', 'roman', 'semibold', 'demibold', 'demi', 'bold', 'heavy', 'extra bold', 'black'] print 'weight'+6*' ', 'file name', '\n'+70*'-' for weight in weights: fprops = matplotlib.font_manager.FontProperties(family='Alegreya Sans', weight=weight) print weight+(12-len(weight))*' ', matplotlib.font_manager.findfont(fprops) </code></pre><p>输出：</p> <pre><code>weight file name ---------------------------------------------------------------------- ultralight /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Light.ttf light /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Light.ttf normal /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Thin.ttf regular /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Thin.ttf book /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Thin.ttf medium /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Medium.ttf roman /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Medium.ttf semibold /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-ExtraBold.ttf demibold /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-ExtraBold.ttf demi /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-ExtraBold.ttf bold /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-ExtraBold.ttf heavy /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-ExtraBold.ttf extra bold /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-ExtraBold.ttf black /hmi/kme/.fonts/Alegreya_Sans/AlegreyaSans-Black.ttf </code></pre><p>如何解决这个问题，为什么会发生呢？提前致谢！</p><p>编辑：<br/>当然，/ hmi / kme / .fonts / Alegreya_Sans /目录中还有更多文件</p><p>完整清单：<br/><code> AlegreyaSans-BlackItalic.ttf AlegreyaSans-BoldItalic.ttf AlegreyaSans-ExtraBoldItalic.ttf AlegreyaSans-Italic.ttf AlegreyaSans-Light.ttf AlegreyaSans-Medium.ttf AlegreyaSans-ThinItalic.ttf AlegreyaSans-Black.ttf AlegreyaSans-Bold.ttf AlegreyaSans-ExtraBold.ttf AlegreyaSans-LightItalic.ttf AlegreyaSans-MediumItalic.ttf AlegreyaSans-Regular.ttf AlegreyaSans-Thin.ttf </code><br/>我的系统<br/>OpenSuse 13.1<br/>python 2.7<br/>matplotlib版本1.4.3</p>
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只怕再见是故人
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2020-08-24 16-02
我通过解决方法手动解决了该问题。无论如何，这似乎是一个错误。如汤姆所说，我将所有字体都复制到$ HOME / .fonts中，而没有子目录。这改变了我在问题中给出的脚本的输出。为了找出问题所在，我尝试通过以下方式打印Alegreya和Alegreya Sans的所有重量和样式组合： ``` import matplotlib matplotlib.use('Qt4Agg') print matplotlib.get_backend() import matplotlib.pyplot as plt alignment = {'horizontalalignment':'center', 'verticalalignment':'baseline'} alegreya_weights = { 'Alegreya': ['regular', 'bold', 'black'], 'Alegreya Sans': ['ultralight', 'light', 'regular', 'medium', 'bold', 'extra bold', 'black'] } styles = ['normal', 'italic'] combinations = [] for family in alegreya_weights.keys(): for style in styles: for weight in alegreya_weights[family]: combinations.append((family, weight, style)) N = len(combinations) def textPlot(ax, i, N, family, weight, style): y = 1.-(1./float(N)) -float(i)/(float(N)+1) ax.text(0.5, y, family+' '+weight+' '+style, family=family, weight=weight, style = style, fontsize = 30, **alignment) fig = plt.figure(figsize=(8, .7*N), frameon=False) ax = plt.gca() ax.axis('off') plt.xlim((0.,1.)) plt.ylim((0.,1.)) for i,c in enumerate(combinations): textPlot(ax, i, N, c[0], c[1], c[2]) plt.show() ``` 事实证明，只有AlegreyaSans-Regular.ttf被AlegreyaSans-Thin.ttf取代了。我不知道这是否是由于单词“ Thin”引起的，在matplotlib语法中被称为“ ultralight”。我将$ HOME / .cache / matplotlib / fontList.cache中的“ AlegreyaSans-Regular.ttf”替换为“ AlegreyaSans-Regin.ttf”以解决此问题。 现在，下面的图像来自上面的脚本。未检测到薄（超光）。 在此处输入图片说明https://i.stack.imgur.com/SBk53.png 感谢汤姆的任何帮助。
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