Matplotlib：箭头¶
| 日期 | 2007-12-06（最后修改），2007-12-06（创建） |
|---|
一些关于如何使用 Arrow 函数绘制箭头的示例代码。
在 [3] 中
from matplotlib.pyplot import *
from numpy import *
x = arange(10)
y = x
# Plot junk and then a filled region
plot(x, y)
# Now lets make an arrow object
arr = Arrow(2, 2, 1, 1, edgecolor='white')
# Get the subplot that we are currently working on
ax = gca()
# Now add the arrow
ax.add_patch(arr)
# We should be able to make modifications to the arrow.
# Lets make it green.
arr.set_facecolor('g')
章节作者：jesrl
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