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44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
# 灰度样式表
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此示例演示“灰度”样式表，该样式表将定义为rc参数的所有颜色更改为灰度。 但请注意，并非所有绘图元素都默认为rc参数定义的颜色。
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```python
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import numpy as np
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import matplotlib.pyplot as plt
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# Fixing random state for reproducibility
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np.random.seed(19680801)
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def color_cycle_example(ax):
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L = 6
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x = np.linspace(0, L)
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ncolors = len(plt.rcParams['axes.prop_cycle'])
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shift = np.linspace(0, L, ncolors, endpoint=False)
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for s in shift:
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ax.plot(x, np.sin(x + s), 'o-')
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def image_and_patch_example(ax):
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ax.imshow(np.random.random(size=(20, 20)), interpolation='none')
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c = plt.Circle((5, 5), radius=5, label='patch')
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ax.add_patch(c)
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plt.style.use('grayscale')
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fig, (ax1, ax2) = plt.subplots(ncols=2)
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fig.suptitle("'grayscale' style sheet")
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color_cycle_example(ax1)
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image_and_patch_example(ax2)
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plt.show()
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```
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## 下载这个示例
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- [下载python源码: grayscale.py](https://matplotlib.org/_downloads/grayscale.py)
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- [下载Jupyter notebook: grayscale.ipynb](https://matplotlib.org/_downloads/grayscale.ipynb) |