in src/h3/_cy/latlng.pyx [0:0]
def directed_edge_to_boundary(H3int edge):
""" Returns the CellBoundary containing the coordinates of the edge
"""
cdef:
h3lib.CellBoundary gb
check_edge(edge)
h3lib.directedEdgeToBoundary(edge, &gb)
# todo: move this verts transform into the CellBoundary object
verts = tuple(
coord2deg(gb.verts[i])
for i in range(gb.num_verts)
)
return verts