skgeom.intersection(Ray2, Ray2) fails?

[HughBothwell]

I built the wheel with pip, so I'm not sure whether this error is general to the library or something I messed up in the build. I have repeated it on three different computers with the same result.

Simple Demo

import skgeom as sg

# first ray
a = sg.Point2(0, 0)
b = sg.Point2(1, 1)
r1 = sg.Ray2(a, b-a)

# second ray
c = sg.Point2(6, 0)
d = sg.Point2(5, 1)
r2 = sg.Ray2(c, d-c)

# find intersection - should be at (3, 3)
pt = sg.intersection(r1, r2)   # !!! error here

Simple Demo Result

Jupyter QtConsole 5.4.0
Python 3.10.7 (main, Nov 24 2022, 19:45:47) [GCC 12.2.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.8.0 -- An enhanced Interactive Python. Type '?' for help.

TypeError                                 Traceback (most recent call last)
Cell In[1], line 14
     11 r2 = sg.Ray2(c, d-c)
     13 # find intersection - should be at (3, 3)
---> 14 pt = sg.intersection(r1, r2)   # !!! error here

TypeError: intersection(): incompatible function arguments. The following argument types are supported:
    1. (arg0: skgeom._skgeom.Line2, arg1: skgeom._skgeom.Line2) -> object
    2. (arg0: skgeom._skgeom.Line2, arg1: skgeom._skgeom.Segment2) -> object
    3. (arg0: skgeom._skgeom.Segment2, arg1: skgeom._skgeom.Segment2) -> object
    4. (arg0: skgeom._skgeom.Ray2, arg1: skgeom._skgeom.Segment2) -> object
    5. (arg0: skgeom._skgeom.Line3, arg1: skgeom._skgeom.Line3) -> object
    6. (arg0: skgeom._skgeom.Line3, arg1: skgeom._skgeom.Plane3) -> object
    7. (arg0: skgeom._skgeom.Line3, arg1: skgeom._skgeom.Ray3) -> object
    8. (arg0: skgeom._skgeom.Line3, arg1: skgeom._skgeom.Segment3) -> object
    9. (arg0: skgeom._skgeom.Line3, arg1: skgeom._skgeom.Triangle3) -> object
    10. (arg0: skgeom._skgeom.Plane3, arg1: skgeom._skgeom.Plane3) -> object
    11. (arg0: skgeom._skgeom.Plane3, arg1: skgeom._skgeom.Ray3) -> object
    12. (arg0: skgeom._skgeom.Plane3, arg1: skgeom._skgeom.Segment3) -> object
    13. (arg0: skgeom._skgeom.Plane3, arg1: CGAL::Sphere_3<CGAL::Epeck>) -> object
    14. (arg0: skgeom._skgeom.Plane3, arg1: skgeom._skgeom.Triangle3) -> object
    15. (arg0: skgeom._skgeom.Ray3, arg1: skgeom._skgeom.Ray3) -> object
    16. (arg0: skgeom._skgeom.Ray3, arg1: skgeom._skgeom.Segment3) -> object
    17. (arg0: skgeom._skgeom.Ray3, arg1: skgeom._skgeom.Triangle3) -> object
    18. (arg0: skgeom._skgeom.Segment3, arg1: skgeom._skgeom.Segment3) -> object
    19. (arg0: skgeom._skgeom.Segment3, arg1: skgeom._skgeom.Triangle3) -> object
    20. (arg0: CGAL::Sphere_3<CGAL::Epeck>, arg1: CGAL::Sphere_3<CGAL::Epeck>) -> object
    21. (arg0: skgeom._skgeom.Triangle3, arg1: skgeom._skgeom.Triangle3) -> object

Invoked with: RayC2(PointC2(0, 0), PointC2(1, 1)), RayC2(PointC2(6, 0), PointC2(5, 1))

.. which I read as "I don't know how to intersect Ray2 and Ray2".
However the CGAL library does support this, per
https://doc.cgal.org/latest/Kernel_23/group__intersection__linear__grp.html#gade00253914ac774cce3d2031c07d74fe
(row 10 of the '2D Intersections' type table)

System Info

Ubuntu 22.10
Python 3.10.7
pip 22.3.1, setuptools 66.1.1
CGAL 5.5-1 (installed by: sudo apt-get install libcgal-dev)
Boost (installed by: sudo apt-get install libboost-all-dev)

Requirements fulfilled:
pybind11 2.7.1
numpy 1.23.5

scikit-geometry (installed by:

git clone https://github.com/scikit-geometry
cd ./scikit-geometry
pip3 install -e scikit-geometry -vvv --use-pep517

builds with gcc - gives 11 warnings, but nothing that looks relevant to this problem (full build output attached: scikit-geometry-build-output.txt )

I haven't yet dug into the source; I'll do that tomorrow. At this point I presume that the Ray2/Ray2 case just got skipped somehow. If so, I'll try adding it.