是否可以控制matplotlib标记的方向? [英] Is it possible to control matplotlib marker orientation?

问题描述

我想知道我是否有一个三角形标记，可以控制它的方向吗?我有一系列构面及其相应的顶点，我想绘制它们的底图.我知道使用Mayavi和tvtk.PolyData时它是直接脚本.但是由于我是在处理地图而不是3D对象，所以事情变得有些复杂.

I would like to know if I have a triangular marker, is it possible to control its orientation? I have a series of facets, with their corresponding vertices, and I would like to plot a basemap of them. I know it is straight forward script when using Mayavi and tvtk.PolyData. But since I'm dealing with maps and not 3D objects, things got a bit complicated.

ps:对于我正在使用底图工具的地图.

ps: for maps I'm using basemap tool.

感谢您的帮助.

推荐答案

您可以使用关键字参数创建自定义多边形 marker，并向其传递3个数字(number of sides, style, rotation)的元组.

You can create custom polygons using the keyword argument marker and passing it a tuple of 3 numbers (number of sides, style, rotation).

要创建三角形，可以使用(3, 0, rotation)，如下所示.

To create a triangle you would use (3, 0, rotation), an example is shown below.

import matplotlib.pyplot as plt

x = [1,2,3]
for i in x:
    plt.plot(i, i, marker=(3, 0, i*90), markersize=20, linestyle='None')

plt.xlim([0,4])
plt.ylim([0,4])

plt.show()

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