生产定制一个彩条标签。
首先导入:
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import matplotlib.pyplot as plt
import numpy as np
from matplotlib import cm
from numpy.random import randn
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制作拥有垂直(默认)彩条的图表:
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fig, ax = plt.subplots()
data = np.clip(randn( 250 , 250 ), - 1 , 1 )
cax = ax.imshow(data, interpolation = 'nearest' , cmap = cm.coolwarm)
ax.set_title( 'Gaussian noise with vertical colorbar' )
# Add colorbar, make sure to specify tick locations to match desired ticklabels
cbar = fig.colorbar(cax, ticks = [ - 1 , 0 , 1 ])
cbar.ax.set_yticklabels([ '< -1' , '0' , '> 1' ]) # vertically oriented colorbar
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效果图:
制作拥有水平彩条的图表:
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fig, ax = plt.subplots()
data = np.clip(randn( 250 , 250 ), - 1 , 1 )
cax = ax.imshow(data, interpolation = 'nearest' , cmap = cm.afmhot)
ax.set_title( 'Gaussian noise with horizontal colorbar' )
cbar = fig.colorbar(cax, ticks = [ - 1 , 0 , 1 ], orientation = 'horizontal' )
cbar.ax.set_xticklabels([ 'Low' , 'Medium' , 'High' ]) # horizontal colorbar
plt.show()
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效果图:
脚本运行耗时:(0分0.075秒)
总结
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