固定mollweide matplotlib投影等高线

Question

我在边界上绘制mollweide地块时遇到了问题。线不会在绘图的另一侧继续。

有没有办法解决这个问题（绿色曲线应该在球体的另一侧继续）？我正在使用matplotlib投影。代码正在绘制已知半径和已知中心的圆，但matplotlib只是在剪切直线。我怎样才能解决这个问题

import math
import numpy as np
import getdist.plots as plots
import matplotlib.pyplot as plt
import matplotlib.ticker
import matplotlib
import scipy 
import pandas as pd

from scipy.stats import norm
from matplotlib import rc
from getdist import loadMCSamples
from getdist import loadMCSamples
from getdist import covmat
from getdist import MCSamples
from tabulate import tabulate
from scipy.optimize import curve_fit
from matplotlib.projections.geo import GeoAxes
from mpl_toolkits.mplot3d import Axes3D


class ThetaFormatterShiftPi(GeoAxes.ThetaFormatter):
    """Shifts labelling by pi
    Shifts labelling from -180,180 to 0-360"""
    def __call__(self, x, pos=None):
        if x != 0:
            x *= -1
        if x < 0:
            x += 2*np.pi
        return GeoAxes.ThetaFormatter.__call__(self, x, pos)
        
        
mean1024 = [1,186,48]
sigma1024 = 30

x = np.linspace(-6.0, 6.0, 100)
y = np.linspace(-6.0, 6.0, 100)
X, Y = np.meshgrid(x,y)
    
l = (360.-mean1024[1])/(180/np.pi)
b = (mean1024[2])/(180/np.pi)
F = (X-l)**2 + (Y-b)**2 - (sigma1024/(180/np.pi))**2
F2 = (X-l)**2 + (Y-b)**2 - (2*sigma1024/(180/np.pi))**2
    

fig, axs = plt.subplots(figsize=(15,10)) 
axs = plt.subplot(projection="mollweide")
axs.set_longitude_grid(45)
axs.xaxis.set_major_formatter(ThetaFormatterShiftPi(45))
axs.set_latitude_grid(45)
axs.set_longitude_grid_ends(90)
plt.grid(True)
    
axs.contour(X,Y,F,[0], linewidths=1.5, colors = ['g'])
axs.contour(X,Y,F2,[0], linewidths=1.5, colors = ['g'])
    

plt.plot(l, b, '+', color = 'green')
    
box = axs.get_position()
axs.set_position([box.x0, box.y0, box.width * 0.8, box.height*0.8])
axs.legend(loc='lower right', bbox_to_anchor=(1.1, -0.2))

fig.savefig('circles.png')
plt.close()