Struct SurfaceDifferential

pub struct SurfaceDifferential {
    pub point: Point3,
    pub unit_normal: Vec3,
    pub first: FundamentalForm,
    pub second: FundamentalForm,
    pub gaussian_curvature: Scalar,
    pub mean_curvature: Scalar,
    pub principal_curvatures: [Scalar; 2],
}

First/second-order differential properties of an oriented surface.

Fields

point: Point3

Evaluated surface point.

unit_normal: Vec3

Unit normal from du × dv.

first: FundamentalForm

First fundamental form (E, F, G).

second: FundamentalForm

Second fundamental form (e, f, g) for unit_normal.

gaussian_curvature: Scalar

Gaussian curvature, invariant under normal reversal.

mean_curvature: Scalar

Mean curvature for the reported normal orientation.

principal_curvatures: [Scalar; 2]

Principal curvatures in ascending order for the reported orientation.

Trait Implementations

impl Clone for SurfaceDifferential

fn clone(&self) -> SurfaceDifferential

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SurfaceDifferential

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

Formats the value using the given formatter.

impl PartialEq for SurfaceDifferential

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

impl StructuralPartialEq for SurfaceDifferential