Struct NurbsCurve 

pub struct NurbsCurve {
    pub degree: usize,
    pub knots: Vec<f64>,
    pub control_points: Vec<Vec4>,
    /* private fields */
}

Fields

degree: usize

knots: Vec<f64>

control_points: Vec<Vec4>

Implementations

impl NurbsCurve

pub fn new( degree: usize, knots: Vec<f64>, control_points: Vec<Vec4>, ) -> Result<Self, String>

pub fn domain(&self) -> Result<[f64; 2], String>

pub fn evaluate_homogeneous(&self, parameter: f64) -> Result<Vec4, String>

pub fn evaluate(&self, parameter: f64) -> Result<Vec3, String>

pub fn evaluate_extended(&self, parameter: f64) -> Result<Vec3, String>

Value beyond the domain (Golovanov §2.15): every curve must answer out-of-domain queries because intersection and projection algorithms probe there. Closed curves wrap the parameter cyclically; open curves extend linearly along the end tangent.

pub fn derivatives_extended( &self, parameter: f64, derivative_count: usize, ) -> Result<Vec<Vec3>, String>

Derivatives beyond the domain (§2.15). The open-end extension is linear: the first derivative is the boundary tangent and higher derivatives vanish.

pub fn derivatives( &self, parameter: f64, derivative_count: usize, ) -> Result<Vec<Vec3>, String>

pub fn reversed(&self) -> Result<Self, String>

pub fn insert_knot( &self, parameter: f64, requested: usize, ) -> Result<Self, String>

pub fn split(&self, parameter: f64) -> Result<(Self, Self), String>

Trait Implementations

impl Clone for NurbsCurve

fn clone(&self) -> NurbsCurve

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NurbsCurve

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for NurbsCurve

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for NurbsCurve

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.