Enum ContactKind 

pub enum ContactKind {
    None,
    SharedEdge,
    PartialContact,
}

Classification of how two polygon parts touch along their boundaries.

Mirrors the three-way outcome of polygon.move::shared_edge_relation: exact shared edge (valid adjacency), no contact (independent), or partial collinear overlap (on-chain aborts EInvalidMultipartContact).

Variants

None

No collinear overlap between any edge pair. Vertex-only contact is classified here as well — callers that care must check vertices separately.

SharedEdge

At least one edge appears in both parts (possibly reversed). This is the only form of adjacency on-chain accepts.

PartialContact

Edges overlap on a non-degenerate interval without matching exactly (T-junction). On-chain aborts EInvalidMultipartContact; in Rust the caller must surface this as TopologyError::UnsupportedContact.

Trait Implementations

impl Clone for ContactKind

fn clone(&self) -> ContactKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContactKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ContactKind

fn eq(&self, other: &ContactKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ContactKind

impl Eq for ContactKind

impl StructuralPartialEq for ContactKind