Flexible section amounts for bounding_cylinder

[djean032]

Adds ability to specify number of sections to better approximate cylinders.

[mikedh]

Thanks for the PR! Yeah it's a good point we might want better control of all of the parameters used for the magic @property values like mesh.ray (controlled by use_embree: bool right now), mesh.bounding_cylinder, etc. I'm not totally sure where the right place to put those would be, but I think it should probably also include values for mesh.bounding_sphere, mesh.bounding_cylinder, mesh.ray. Maybe the right place to put these would be as a dataclass although it is a bit wordy:

@dataclass
class PropertySettings:
    # keyword arguments passed to `trimesh.primitives.Cylinder`
    bounding_cylinder: dict

    use_embree: bool = True

Although I guess for cylinders you could also call the methods it's currently using:

from trimesh import bounds, primitives

kwargs = bounds.minimum_cylinder(a_mesh)
mincyl = primitives.Cylinder(mutable=False, sections=100, **kwargs)

[djean032]

Thanks for considering the PR. I think that's an interesting idea. I closed this for now, because my solution was hacky, but I'll keep working on it, because it's pretty useful in my current work.