在matplotlib极坐标图中设置theta-ticks [英] Setting theta-ticks in matplotlib polar plots

问题描述

我的问题与以下内容有关:matlab 中的散点极坐标图

My question is related to the following: Scatter polar plot in matlab

我尝试在网上查找，但找不到与此轴相关的任何内容；而不是将极坐标图从0到360度旋转，我该怎么做-180到180度?

I tried looking online but couldn't find any with this axis; instead of the polar plot going 0 to 360 degrees how can I do -180 to 180 instead?

推荐答案

创建极轴后，您可以简单地设置刻度.请注意，您必须将刻度设置为弧度，并且matplotlib将以度为单位显示.

After creating the polar axis, you can simply set the ticks. Note that you have to set the ticks in radians and matplotlib will display in degrees.

不太确定您想如何处理 180 和 -180 的差异.

Not quite sure how you want to deal the discrepancy at 180 and -180.

import matplotlib.pyplot as plt
fig, ax1 = plt.subplots(figsize=(6, 6), subplot_kw=dict(polar=True))
ax1.set_xticks(np.pi/180. * np.linspace(180,  -180, 8, endpoint=False))

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