`Mesh.from_bounding_box` method

[pshriwise]

Description

There's a handy set of methods for our structured mesh types, from_domain, which constructs the mesh object from the bounding box of the domain provided. It would be a nice refactor to make the from_domain an abstract method that calls a new concrete method, from_bounding_box, on the class subclass implementations.

This provides an option to generate our structured mesh classes directly from a bounding box rather than requiring a domain to do so.

openmc/openmc/mesh.py

Lines 1193 to 1210 in b3788f1

	def from_domain(
	cls,
	domain: HasBoundingBox | BoundingBox,
	dimension: Sequence[int] | int = 1000,
	mesh_id: int | None = None,
	name: str = ''
	):
	"""Create RegularMesh from a domain using its bounding box.
	Parameters
	----------
	domain : HasBoundingBox | openmc.BoundingBox
	The object passed in will be used as a template for this mesh. The
	bounding box of the property of the object passed will be used to
	set the lower_left and upper_right and of the mesh instance.
	Alternatively, a :class:`openmc.BoundingBox` can be passed
	directly.
	dimension : Iterable of int | int

Alternatives

N/A

Compatibility

This should be a pure addition to the current interface.

[pshriwise]

Seeing now that the from_domain method does currently take a bounding box. Though the name of this function is a bit vague, it is able to take a BoundingBox object instead.

All the same, a method named from_bounding_box that more clearly takes a bounding box in which to build the would make for a better API IMO.