project_extents function in geoviews/util.py

[valenal]

Python 3.9.7
IPython 7.30.1
cartopy 0.20.1
geoviews 1.9.2

hvplot is trying to convert extents from one projection to another using project_extents function but when i use a projection with a spherical globe I get the following error:

from cartopy import crs as ccrs
from geoviews.util import project_extents

extents =(-20037508.342789244, -20037508.342789248, 20037508.342789244, 20037508.342789248)

sphere = ccrs.Globe(ellipse='sphere', semimajor_axis=6370000, semiminor_axis=6370000)
crsLCC = ccrs.LambertConformal(globe=sphere,central_longitude=-97.0, central_latitude=40.0,standard_parallels=(33,45))

project_extents(extents, crsLCC, ccrs.GOOGLE_MERCATOR)

/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/cartopy/crs.py:825: ShapelyDeprecationWarning: __len__ for multi-part geometries is deprecated and will be removed in Shapely 2.0. Check the length of the `geoms` property instead to get the  number of parts of a multi-part geometry.
  if len(multi_line_string) > 1:
/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/cartopy/crs.py:877: ShapelyDeprecationWarning: Iteration over multi-part geometries is deprecated and will be removed in Shapely 2.0. Use the `geoms` property to access the constituent parts of a multi-part geometry.
  for line in multi_line_string:
/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/cartopy/crs.py:944: ShapelyDeprecationWarning: __len__ for multi-part geometries is deprecated and will be removed in Shapely 2.0. Check the length of the `geoms` property instead to get the  number of parts of a multi-part geometry.
  if len(p_mline) > 0:
/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/cartopy/crs.py:982: ShapelyDeprecationWarning: Iteration over multi-part geometries is deprecated and will be removed in Shapely 2.0. Use the `geoms` property to access the constituent parts of a multi-part geometry.
  line_strings.extend(multi_line_string)
/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/cartopy/crs.py:982: ShapelyDeprecationWarning: __len__ for multi-part geometries is deprecated and will be removed in Shapely 2.0. Check the length of the `geoms` property instead to get the  number of parts of a multi-part geometry.
  line_strings.extend(multi_line_string)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/geoviews/util.py in project_extents(extents, src_proj, dest_proj, tol)
     96         try:
---> 97             geom_in_crs = dest_proj.project_geometry(geom_in_src_proj, src_proj)
     98         except ValueError:

/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/cartopy/crs.py in project_geometry(self, geometry, src_crs)
    796         if not method_name:
--> 797             raise ValueError(f'Unsupported geometry type {geom_type!r}')
    798         return getattr(self, method_name)(geometry, src_crs)

ValueError: Unsupported geometry type 'GeometryCollection'

During handling of the above exception, another exception occurred:

ValueError                                Traceback (most recent call last)
<ipython-input-7-92202881847f> in <module>
----> 1 project_extents(extents, crsLCC, ccrs.GOOGLE_MERCATOR)

/usr/apps/anaconda3/envs/gviews/lib/python3.9/site-packages/geoviews/util.py in project_extents(extents, src_proj, dest_proj, tol)
     99             src_name =type(src_proj).__name__
    100             dest_name =type(dest_proj).__name__
--> 101             raise ValueError('Could not project data from %s projection '
    102                              'to %s projection. Ensure the coordinate '
    103                              'reference system (crs) matches your data '

ValueError: Could not project data from LambertConformal projection to Mercator projection. Ensure the coordinate reference system (crs) matches your data and the kdims.

If I use a projection without the spherical parameter, it works. However, this is not my reference coordinate system.

crsLCC = ccrs.LambertConformal(central_longitude=-97.0, central_latitude=40.0,standard_parallels=(33,45))
project_extents(extents, crsLCC, ccrs.GOOGLE_MERCATOR)