立体图太阳图matplotlib极地情节python

Question

我正在尝试创建一个类似于这些的简单立体太阳路径图： http://wiki.naturalfrequency.com/wiki/Sun-Path_Diagram

我能够旋转极坐标图并将刻度设置为90.如何反转y轴？ 目前轴从0> 90，如何将轴反转为90> 0以表示方位角？

我试过了：

ax.invert_yaxis()
ax.yaxis_inverted()

此外，我将如何创建立体投影而不是等距？

我的代码：

import matplotlib.pylab as plt
testFig = plt.figure(1, figsize=(8,8))
rect = [0.1,0.1,0.8,0.8]
testAx = testFig.add_axes(rect,polar=True)
testAx.invert_yaxis()
testAx.set_theta_zero_location('N')
testAx.set_theta_direction(-1)

Azi = [90,180,270]
Alt= [0,42,0]
testAx.plot(Azi,Alt)
plt.show()

目前我的代码似乎没有正确绘制线条，我是否需要将角度或度数转换为其他内容？

非常感谢任何帮助。

Answer 1

我终于有时间玩matplotlib了。经过多次搜索，Joe Kington指出的正确方法是对Axes进行子类化。我发现使用优秀的底图模块的速度要快得多。

下面是我为stackoverflow改编的一些代码。使用Pysolar计算太阳高度和方位角，并在熊猫中创建一组时间序列邮票。

import matplotlib.pylab as plt
from mpl_toolkits.basemap import Basemap
import numpy as np

winterAzi = datafomPySolarAzi
winterAlt = datafromPySolarAlt

# create instance of basemap, note we want a south polar projection to 90 = E
myMap = Basemap(projection='spstere',boundinglat=0,lon_0=180,resolution='l',round=True,suppress_ticks=True)
# set the grid up
gridX,gridY = 10.0,15.0
parallelGrid = np.arange(-90.0,90.0,gridX)
meridianGrid = np.arange(-180.0,180.0,gridY)

# draw parallel and meridian grid, not labels are off. We have to manually create these.
myMap.drawparallels(parallelGrid,labels=[False,False,False,False])
myMap.drawmeridians(meridianGrid,labels=[False,False,False,False],labelstyle='+/-',fmt='%i')

# we have to send our values through basemap to convert coordinates, note -winterAlt
winterX,winterY = myMap(winterAzi,-winterAlt)

# plot azimuth labels, with a North label.
ax = plt.gca()
ax.text(0.5,1.025,'N',transform=ax.transAxes,horizontalalignment='center',verticalalignment='bottom',size=25)
for para in np.arange(gridY,360,gridY):
    x= (1.1*0.5*np.sin(np.deg2rad(para)))+0.5
    y= (1.1*0.5*np.cos(np.deg2rad(para)))+0.5
    ax.text(x,y,u'%i\N{DEGREE SIGN}'%para,transform=ax.transAxes,horizontalalignment='center',verticalalignment='center')


# plot the winter values
myMap.plot(winterX,winterY ,'bo')

请注意，目前我只绘制点数，你必须确保线点在日出/日落时的点数为0。