Struct RuledSection3

pub struct RuledSection3 {
    pub carrier: RuledCarrier,
    pub graph: QuadraticGraph2,
}

A quadric’s section of a ruled carrier, in space: the point at t is the carrier’s point at (t, graph.height(t)).

Fields

carrier: RuledCarrier

The ruled surface the curve lies on.

graph: QuadraticGraph2

The curve in the carrier’s parameters.

Implementations

impl RuledSection3

pub fn point(&self, t: Scalar) -> Option<Point3>

Point at t, or None outside the graph’s spans.

pub fn tangent(&self, t: Scalar) -> Option<Vec3>

Tangent at t: P_u + P_v dv/dt.

pub fn bend(&self, t: Scalar) -> Option<Vec3>

Second derivative at t: P_uu + 2 P_uv v' + P_v v'' (the carrier is linear in v, so P_vv = 0).

Trait Implementations

impl Clone for RuledSection3

fn clone(&self) -> RuledSection3

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RuledSection3

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

Formats the value using the given formatter.

impl PartialEq for RuledSection3

fn eq(&self, other: &RuledSection3) -> 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 RuledSection3

impl StructuralPartialEq for RuledSection3