Source code for ddg.conversion.halfedge.core

from ddg.geometry import euclidean_models
from ddg.geometry.spheres import SphereLike
from ddg.nets import (
    DiscreteDomain,
    DiscreteNet,
    EmptyDomain,
    EmptyNet,
    NetCollection,
    PointNet,
)

from .geometry.spheres import circle_to_halfedge, sphere_to_icosphere
from .nets import discrete_domain_to_halfedge, discrete_net_to_halfedge


def to_halfedge(object_, **kwargs):
    """
    Converts an object to a primitive halfedge surface
    depending to its type.
    """
    if isinstance(object_, SphereLike):
        if isinstance(object_.geometry, euclidean_models.ProjectiveModel):
            if object_.is_circle():
                return circle_to_halfedge(object_, **kwargs)
            else:
                return sphere_to_icosphere(object_, **kwargs)
    elif isinstance(object_, (DiscreteNet, EmptyNet, PointNet, NetCollection)):
        return discrete_net_to_halfedge(object_, **kwargs)
    elif isinstance(object_, (DiscreteDomain, EmptyDomain)):
        return discrete_domain_to_halfedge(object_, **kwargs)
    else:
        raise TypeError(
            f"Object of type {type(object_)} could not be converted to halfedge."
        )