字体演示（面向对象的风格）

使用setter设置字体属性。

请参见字体演示(Kwargs)，以使用kwargs实现相同的效果。

字体演示

  1. from matplotlib.font_manager import FontProperties
  2. import matplotlib.pyplot as plt
  4. plt.subplot(111, facecolor='w')
  6. font0 = FontProperties()
  7. alignment = {'horizontalalignment': 'center', 'verticalalignment': 'baseline'}
  8. # Show family options
  10. families = ['serif', 'sans-serif', 'cursive', 'fantasy', 'monospace']
  12. font1 = font0.copy()
  13. font1.set_size('large')
  15. t = plt.text(-0.8, 0.9, 'family', fontproperties=font1,
  16.              **alignment)
  18. yp = [0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2]
  20. for k, family in enumerate(families):
  21.     font = font0.copy()
  22.     font.set_family(family)
  23.     t = plt.text(-0.8, yp[k], family, fontproperties=font,
  24.                  **alignment)
  26. # Show style options
  28. styles = ['normal', 'italic', 'oblique']
  30. t = plt.text(-0.4, 0.9, 'style', fontproperties=font1,
  31.              **alignment)
  33. for k, style in enumerate(styles):
  34.     font = font0.copy()
  35.     font.set_family('sans-serif')
  36.     font.set_style(style)
  37.     t = plt.text(-0.4, yp[k], style, fontproperties=font,
  38.                  **alignment)
  40. # Show variant options
  42. variants = ['normal', 'small-caps']
  44. t = plt.text(0.0, 0.9, 'variant', fontproperties=font1,
  45.              **alignment)
  47. for k, variant in enumerate(variants):
  48.     font = font0.copy()
  49.     font.set_family('serif')
  50.     font.set_variant(variant)
  51.     t = plt.text(0.0, yp[k], variant, fontproperties=font,
  52.                  **alignment)
  54. # Show weight options
  56. weights = ['light', 'normal', 'medium', 'semibold', 'bold', 'heavy', 'black']
  58. t = plt.text(0.4, 0.9, 'weight', fontproperties=font1,
  59.              **alignment)
  61. for k, weight in enumerate(weights):
  62.     font = font0.copy()
  63.     font.set_weight(weight)
  64.     t = plt.text(0.4, yp[k], weight, fontproperties=font,
  65.                  **alignment)
  67. # Show size options
  69. sizes = ['xx-small', 'x-small', 'small', 'medium', 'large',
  70.          'x-large', 'xx-large']
  72. t = plt.text(0.8, 0.9, 'size', fontproperties=font1,
  73.              **alignment)
  75. for k, size in enumerate(sizes):
  76.     font = font0.copy()
  77.     font.set_size(size)
  78.     t = plt.text(0.8, yp[k], size, fontproperties=font,
  79.                  **alignment)
  81. # Show bold italic
  83. font = font0.copy()
  84. font.set_style('italic')
  85. font.set_weight('bold')
  86. font.set_size('x-small')
  87. t = plt.text(-0.4, 0.1, 'bold italic', fontproperties=font,
  88.              **alignment)
  90. font = font0.copy()
  91. font.set_style('italic')
  92. font.set_weight('bold')
  93. font.set_size('medium')
  94. t = plt.text(-0.4, 0.2, 'bold italic', fontproperties=font,
  95.              **alignment)
  97. font = font0.copy()
  98. font.set_style('italic')
  99. font.set_weight('bold')
  100. font.set_size('x-large')
  101. t = plt.text(-0.4, 0.3, 'bold italic', fontproperties=font,
  102.              **alignment)
  104. plt.axis([-1, 1, 0, 1])
  106. plt.show()

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