HalfEdge

Symbolica documentation for getting started, symbolic expressions, numerical evaluation, pattern matching, and APIs in Python and Rust.

HalfEdge

HalfEdge()

A half-edge in a graph that connects to one vertex, consisting of a direction (or None if undirected) and edge data.

Methods

Name	Description
__new__	Create a new half-edge
data	Get the data of the half-edge.
direction	Get the direction of the half-edge
flip	Return a new half-edge with the direction flipped (if it has a direction).

__new__

HalfEdge.__new__(data: Expression | int, direction: bool | None = None)

Related type: Expression

Create a new half-edge. The data can be any expression, and the direction can be True (outgoing), False (incoming) or None (undirected).

Parameters

• data (Expression | int) The data to associate with the object.
• direction (bool | None) The direction of the edge or half-edge.

data

HalfEdge.data() -> Expression

Get the data of the half-edge.

direction

HalfEdge.direction() -> bool | None

Get the direction of the half-edge. True means outgoing, False means incoming, and None means undirected.

flip

HalfEdge.flip() -> HalfEdge

Return a new half-edge with the direction flipped (if it has a direction).