这是我现在正在使用的示例代码：https://python-graph-gallery.com/300-draw-a-connection-line/
当我使用示例坐标时，它可以正常工作，并且像示例中一样绘制橙色线。
但是，当我输入自己的坐标而不是样本坐标时，会产生ValueError。
这是我的代码的外观：
m=Basemap()
m.drawmapboundary(fill_color='#A6CAE0', linewidth=0)
m.fillcontinents(color='grey', alpha=0.7, lake_color='grey')
m.drawcoastlines(linewidth=0.1, color="white")
# Add a connection between new york and London
startlat = 40.78; startlon = -73.98
arrlat = 51.53; arrlon = 0.08
m.drawgreatcircle(59.33, 18.07, 35.3, 149.1, linewidth=2, color='orange')
这是它产生的全部错误：
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-19-b3f6087641a6> in <module>()
14 print(end)
15 m.drawgreatcircle(startlon,startlat,arrlon,arrlat, linewidth=4, color='orange')
---> 16 m.drawgreatcircle(59.33, 18.07, 35.3, 149.1, linewidth=2, color='orange')
~\AppData\Local\conda\conda\envs\LocalEnv\lib\site-packages\mpl_toolkits\basemap\__init__.py in drawgreatcircle(self, lon1, lat1, lon2, lat2, del_s, **kwargs)
2875 # use great circle formula for a perfect sphere.
2876 gc = pyproj.Geod(a=self.rmajor,b=self.rminor)
-> 2877 az12,az21,dist = gc.inv(lon1,lat1,lon2,lat2)
2878 npoints = int((dist+0.5*1000.*del_s)/(1000.*del_s))
2879 lonlats = gc.npts(lon1,lat1,lon2,lat2,npoints)
~\AppData\Local\conda\conda\envs\LocalEnv\lib\site-packages\pyproj\__init__.py in inv(self, lons1, lats1, lons2, lats2, radians)
826 inz, zisfloat, zislist, zistuple = _copytobuffer(lons2)
827 ind, disfloat, dislist, distuple = _copytobuffer(lats2)
--> 828 _proj.Geod._inv(self,inx,iny,inz,ind,radians=radians)
829 # if inputs were lists, tuples or floats, convert back.
830 outx = _convertback(xisfloat,xislist,xistuple,inx)
_proj.pyx in _proj.Geod._inv (_proj.c:5471)()
ValueError: undefined inverse geodesic (may be an antipodal point)
有人看到问题出在哪里吗？
预先感谢