Struct ncollide2d::shape::Triangle

#[repr(C)]
pub struct Triangle<N: RealField> { /* fields omitted */ }

A triangle shape.

Methods

impl<N: RealField> Triangle<N>

pub fn new(a: Point<N>, b: Point<N>, c: Point<N>) -> Triangle<N>

Creates a triangle from three points.

pub fn from_array(arr: &[Point<N>; 3]) -> &Triangle<N>

Creates the reference to a triangle from the reference to an array of three points.

pub fn a(&self) -> &Point<N>

The fist point of this triangle.

pub fn b(&self) -> &Point<N>

The second point of this triangle.

pub fn c(&self) -> &Point<N>

The third point of this triangle.

pub fn vertices(&self) -> &[Point<N>; 3]

Reference to an array containing the three vertices of this triangle.

pub fn normal(&self) -> Option<Unit<Vector<N>>>

The normal of this triangle assuming it is oriented ccw.

The normal points such that it is collinear to AB × AC (where × denotes the cross product).

pub fn edges(&self) -> [Segment<N>; 3]

The three edges of this triangle: [AB, BC, CA].

pub fn transformed(&self, m: &Isometry<N>) -> Self

Returns a new triangle with vertices transformed by m.

pub fn edges_scaled_directions(&self) -> [Vector<N>; 3]

The three edges scaled directions of this triangle: [B - A, C - B, A - C].

pub fn scaled_normal(&self) -> Vector<N>

A vector normal of this triangle.

The vector points such that it is collinear to AB × AC (where × denotes the cross product).

pub fn extents_on_dir(&self, dir: &Unit<Vector<N>>) -> (N, N)

Computes the extents of this triangle on the given direction.

This computes the min and max values of the dot products between each vertex of this triangle and dir.

Trait Implementations

impl<N: RealField> PointQuery<N> for Triangle<N>

fn project_point(
    &self,
    m: &Isometry<N>,
    pt: &Point<N>,
    solid: bool
) -> PointProjection<N>

Projects a point on self transformed by m.

fn project_point_with_feature(
    &self,
    m: &Isometry<N>,
    pt: &Point<N>
) -> (PointProjection<N>, FeatureId)

Projects a point on the boundary of self transformed by m and retuns the id of the feature the point was projected on.

fn distance_to_point(&self, m: &Isometry<N>, pt: &Point<N>, solid: bool) -> N

Computes the minimal distance between a point and self transformed by m.

fn contains_point(&self, m: &Isometry<N>, pt: &Point<N>) -> bool

Tests if the given point is inside of self transformed by m.

impl<N: RealField> PointQueryWithLocation<N> for Triangle<N>

type Location = TrianglePointLocation<N>

Additional shape-specific projection information

fn project_point_with_location(
    &self,
    m: &Isometry<N>,
    pt: &Point<N>,
    solid: bool
) -> (PointProjection<N>, Self::Location)

Projects a point on self transformed by m.

impl<N: RealField> SupportMap<N> for Triangle<N>

fn support_point(&self, m: &Isometry<N>, dir: &Vector<N>) -> Point<N>

Evaluates the support function of the object.

fn support_point_toward(
    &self,
    transform: &Isometry<N>,
    dir: &Unit<Vector<N>>
) -> Point<N>

Same as self.support_point except that dir is normalized.

impl<N: RealField> ToPolyline<N> for Triangle<N>

type DiscretizationParameter = ()

fn to_polyline(&self, _: ()) -> Polyline<N>

Builds a triangle mesh from this shape.

impl<N: Clone + RealField> Clone for Triangle<N>

fn clone(&self) -> Triangle<N>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<N: PartialEq + RealField> PartialEq<Triangle<N>> for Triangle<N>

fn eq(&self, other: &Triangle<N>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Triangle<N>) -> bool

This method tests for !=.

impl<N: Debug + RealField> Debug for Triangle<N>

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

Formats the value using the given formatter.