Enum Extension 

pub enum Extension {
    Natural,
    Linear {
        continuity: Continuity,
    },
}

How a face continues past the edge it is extended across.

Variants

Natural

The surface continues as itself: an analytic surface along its own equation, a B-spline patch as the polynomial of the span at the edge, which is as smooth across the old edge as the patch is anywhere.

Linear

The surface continues as the polynomial of its derivatives across the edge, carried to the least order that gives the join continuity: the first order (straight out along the crossing tangent) for Continuity::C0, Continuity::G1 and Continuity::C1, the second for Continuity::G2 and Continuity::C2. An analytic surface takes it only where its crossing parameter line is straight (a plane, a cylinder or cone grown along its rulings), where it is the surface itself.

Fields

continuity: Continuity

The smoothness the join across the old edge keeps.

Trait Implementations

impl Clone for Extension

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 Extension

impl Debug for Extension

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

Formats the value using the given formatter.

impl Eq for Extension

impl PartialEq for Extension

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Extension