如何先绘制线，最后绘制点
我有一个简单的图，其中有几组点和连接每组的线。我希望将点绘制在线条的顶部（以便线条不会显示在点内）。无论 plot 和 scatter 调用的顺序如何，该图的结果都是一样的，而不是我想要的那样。有简单的方法吗？
import math
import matplotlib.pyplot as plt
def poisson(m):
def f(k):
e = math.e**(-m)
f = math.factorial(k)
g = m**k
return g*e/f
return f
R = range(20)
L = list()
means = (1,4,10)
for m in means:
f = poisson(m)
L.append([f(k) for k in R])
colors = ['r','b','purple']
for c,P in zip(colors,L):
plt.plot(R,P,color='0.2',lw=1.5)
plt.scatter(R,P,s=150,color=c)
ax = plt.axes()
ax.set_xlim(-0.5,20)
ax.set_ylim(-0.01,0.4)
plt.savefig('example.png')
I have a simple plot with several sets of points and lines connecting each set. I want the points to be plotted on top of the lines (so that the line doesn't show inside the point). Regardless of order of the plot and scatter calls, this plot comes out the same, and not as I'd like. Is there a simple way to do it?
import math
import matplotlib.pyplot as plt
def poisson(m):
def f(k):
e = math.e**(-m)
f = math.factorial(k)
g = m**k
return g*e/f
return f
R = range(20)
L = list()
means = (1,4,10)
for m in means:
f = poisson(m)
L.append([f(k) for k in R])
colors = ['r','b','purple']
for c,P in zip(colors,L):
plt.plot(R,P,color='0.2',lw=1.5)
plt.scatter(R,P,s=150,color=c)
ax = plt.axes()
ax.set_xlim(-0.5,20)
ax.set_ylim(-0.01,0.4)
plt.savefig('example.png')
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您需要设置 Z 顺序。
看看这个例子。
http://matplotlib.sourceforge.net/examples/pylab_examples/zorder_demo.html
You need to set the Z-order.
Check out this example.
http://matplotlib.sourceforge.net/examples/pylab_examples/zorder_demo.html