Enum PipeContact 

pub enum PipeContact {
    AsPlaced,
    Contact,
    Correction,
}

How a pipe shell brings its profile onto the spine before sweeping it, a rigid motion of the profile defined by the profile’s plane and the spine’s start alone.

The contact point is the foot of the spine’s start point on the profile’s plane. It is one point for any planar profile, an open wire as much as a face, and a face and its outer wire share it; the profile’s own point nearest the start would not be (every point of a ring about the start is nearest at once, and a face’s nearest point can lie inside it where its boundary’s cannot).

Variants

AsPlaced

The profile is swept where it stands: square to the spine at its start and through the start point, or refused.

Contact

The profile is moved, unturned, along its plane’s normal by the distance from its plane to the spine’s start point, so that the contact point lands on the start point. A profile already within the confusion distance of the start is swept as it stands.

Correction

As Contact, then the profile is turned about the spine’s start point by the least rotation standing its plane square to the spine’s start tangent: about the axis square to both, through the angle between the tangent and the plane’s normal taken whichever way round the normal is nearer the tangent. A plane has no side, so a normal pointing back along the tangent is already square and the profile is not turned. A plane holding the tangent (to an angle’s tolerance) is a quarter turn from square either way round, and is refused.

Trait Implementations

impl Clone for PipeContact

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PipeContact

impl Debug for PipeContact

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

Formats the value using the given formatter.

impl Default for PipeContact

fn default() -> Self

Returns the “default value” for a type.

impl Eq for PipeContact

impl PartialEq for PipeContact

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PipeContact