refactor: regroup spherical classes into separate files (#199)

* refactor: regroup spherical classes into separate files

Signed-off-by: nstarman <nstarman@users.noreply.github.com>

src/coordinax/_src/d3/__init__.py

@@ -3,28 +3,37 @@
 
 from . import (
  base,
+ base_spherical,
  cartesian,
  compat,
  constructor,
  cylindrical,
  generic,
+ lonlatspherical,
+ mathspherical,
  spherical,
  transform,
 )
 from .base import *
+from .base_spherical import *
 from .cartesian import *
 from .compat import *
 from .constructor import *
 from .cylindrical import *
 from .generic import *
+from .lonlatspherical import *
+from .mathspherical import *
 from .spherical import *
 from .transform import *
 
 __all__: list[str] = []
 __all__ += base.__all__
 __all__ += cartesian.__all__
 __all__ += cylindrical.__all__
+__all__ += base_spherical.__all__
 __all__ += spherical.__all__
+__all__ += mathspherical.__all__
+__all__ += lonlatspherical.__all__
 __all__ += generic.__all__
 __all__ += transform.__all__
 __all__ += compat.__all__

src/coordinax/_src/d3/base_spherical.py

@@ -0,0 +1,55 @@
+"""Built-in vector classes."""
+
+__all__ = [
+ "AbstractSphericalPosition",
+ "AbstractSphericalVelocity",
+ "AbstractSphericalAcceleration",
+]
+
+from abc import abstractmethod
+from typing_extensions import override
+
+from unxt import Quantity
+
+from .base import AbstractAcceleration3D, AbstractPosition3D, AbstractVelocity3D
+from coordinax._src.utils import classproperty
+
+_90d = Quantity(90, "deg")
+_180d = Quantity(180, "deg")
+_360d = Quantity(360, "deg")
+
+
+class AbstractSphericalPosition(AbstractPosition3D):
+ """Abstract spherical vector representation."""
+
+ @override
+ @classproperty
+ @classmethod
+ @abstractmethod
+ def differential_cls(cls) -> "type[AbstractSphericalVelocity]": ...
+
+
+class AbstractSphericalVelocity(AbstractVelocity3D):
+ """Spherical differential representation."""
+
+ @override
+ @classproperty
+ @classmethod
+ @abstractmethod
+ def integral_cls(cls) -> type[AbstractSphericalPosition]: ...
+
+ @override
+ @classproperty
+ @classmethod
+ @abstractmethod
+ def differential_cls(cls) -> "type[AbstractSphericalAcceleration]": ...
+
+
+class AbstractSphericalAcceleration(AbstractAcceleration3D):
+ """Spherical acceleration representation."""
+
+ @override
+ @classproperty
+ @classmethod
+ @abstractmethod
+ def integral_cls(cls) -> type[AbstractSphericalVelocity]: ...