渐变facecolor matplotlib酒吧情节 [英] Gradient facecolor matplotlib bar plot
本文介绍了渐变facecolor matplotlib酒吧情节的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何在我的条形图上添加一个渐变 facecolor
?我想知道如何使用简单的单色渐变复杂的多色渐变。下面是一些示例代码:
How do I add a gradient facecolor
to my bar plots? I want to know how to use simple one-color gradients to complex multicolor gradients. Here is some example code:
import numpy as np
import matplotlib.pyplot as plt
plt.figure(figsize=(1,5))
plt.axis([0,1,-50,200])
plt.xticks([])
plt.yticks([-40,180])
plt.bar(left=0, width=1, bottom=-40, height=220, color='r')
plt.subplots_adjust(left=0.4, right=0.8)
plt.savefig("test.png")
推荐答案
import numpy as np
import matplotlib as mpl
import matplotlib.pyplot as plt
# http://matplotlib.sourceforge.net/examples/api/colorbar_only.html
fig=plt.figure(figsize=(1,5))
ax=fig.add_subplot(111)
ax.axis([0,1,-50,200])
cmap = mpl.cm.jet
norm = mpl.colors.Normalize(vmin=-40, vmax=180)
cb1 = mpl.colorbar.ColorbarBase(ax, cmap=cmap,
orientation='vertical',
norm=norm,
ticks=[-40,180]
)
plt.subplots_adjust(left=0.4, right=0.8)
plt.show()
$ b b
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