Enum Meeting 

pub enum Meeting {
    Apart,
    Touching(Vec<Point>),
    Along(Vec<Curve>),
    Same,
}

What two surfaces do where they meet.

Variants

Apart

They do not meet at all.

Touching(Vec<Point>)

They touch at isolated points, without crossing.

A sphere resting on a plane. Distinguished from a curve because a tangential contact has no length to walk along, and an algorithm that treated it as a degenerate curve would divide by that length.

Along(Vec<Curve>)

They meet along these curves.

Same

They are the same surface wherever they overlap.

A separate answer from every other, because it is the one where “the intersection curve” does not exist: the overlap is two-dimensional. A boolean has to detect this and unify the faces rather than look for a seam between them.

Trait Implementations

impl Clone for Meeting

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Meeting

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

Formats the value using the given formatter.

impl PartialEq for Meeting

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Meeting