本文介绍了Matplotlib中的极坐标图是一半还是四分之一?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
我正在尝试制作一个极坐标图,而不是Matplotlib中的360度坐标图,它类似于
I am trying to make a polar plot that goes 180 degrees instead of 360 in Matplotlib similar to http://www.mathworks.com/matlabcentral/fileexchange/27230-half-polar-coordinates-figure-plot-function-halfpolar in MATLAB. Any ideas?
解决方案
The following works in matplotlib 2.1 or higher. There is also an example on the matplotlib page.
You may use a usual polar plot, ax = fig.add_subplot(111, polar=True)
and confine the theta range. For a half polar plot
ax.set_thetamin(0)
ax.set_thetamax(180)
or for a quarter polar plot
ax.set_thetamin(0)
ax.set_thetamax(90)
Complete example:
import matplotlib.pyplot as plt
import numpy as np
theta = np.linspace(0,np.pi)
r = np.sin(theta)
fig = plt.figure()
ax = fig.add_subplot(111, polar=True)
c = ax.scatter(theta, r, c=r, s=10, cmap='hsv', alpha=0.75)
ax.set_thetamin(0)
ax.set_thetamax(180)
plt.show()
这篇关于Matplotlib中的极坐标图是一半还是四分之一?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!