Struct euler::DTrs

pub struct DTrs {
    pub t: DVec3,
    pub r: DQuat,
    pub s: DVec3,
}

Double-precision translation + rotation + non-uniform scale transform.

Fields

t: DVec3

Translation vector.

r: DQuat

Rotation quaternion.

s: DVec3

Non-uniform scale factor.

Implementations

impl DTrs

pub fn new(t: DVec3, r: DQuat, s: DVec3) -> Self

Full constructor.

Examples found in repository

examples/unproject.rs (lines 26-30)

fn unproject_double_precision(ndc: euler::Vec2) -> euler::DVec3 {
    let projection = dmat4!();
    let inverse_projection = projection.inverse();
    let eye = inverse_projection * dvec4!(dvec2!(ndc), -1, 1);
    let view = euler::DTrs::new(
        dvec3!(1, 0, -1),
        dquat!(1, 0, 0; f64::consts::PI / 2.0),
        dvec3!(1.0),
    )
    .matrix();
    let inverse_view = view.inverse();
    let world = inverse_view * dvec4!(eye.xy(), -1, 0);
    let ray = world.xyz().normalize();
    ray
}

pub fn identity() -> Self

Identity constructor.

pub fn matrix(&self) -> DMat4

Returns the equivalent matrix representation for this transform.

Examples found in repository

examples/unproject.rs (line 31)

fn unproject_double_precision(ndc: euler::Vec2) -> euler::DVec3 {
    let projection = dmat4!();
    let inverse_projection = projection.inverse();
    let eye = inverse_projection * dvec4!(dvec2!(ndc), -1, 1);
    let view = euler::DTrs::new(
        dvec3!(1, 0, -1),
        dquat!(1, 0, 0; f64::consts::PI / 2.0),
        dvec3!(1.0),
    )
    .matrix();
    let inverse_view = view.inverse();
    let world = inverse_view * dvec4!(eye.xy(), -1, 0);
    let ray = world.xyz().normalize();
    ray
}

Trait Implementations

impl ApproxEq for DTrs

type Epsilon = <f64 as ApproxEq>::Epsilon

Used for specifying relative comparisons.

fn default_epsilon() -> Self::Epsilon

The default tolerance to use when testing values that are close together.

fn default_max_relative() -> Self::Epsilon

The default relative tolerance for testing values that are far-apart.

fn default_max_ulps() -> u32

The default ULPs to tolerate when testing values that are far-apart.

fn relative_eq( &self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon ) -> bool

A test for equality that uses a relative comparison if the values are far apart.

fn ulps_eq(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool

A test for equality that uses units in the last place (ULP) if the values are far apart.

fn relative_ne( &self, other: &Self, epsilon: Self::Epsilon, max_relative: Self::Epsilon ) -> bool

The inverse of ApproxEq::relative_eq.

fn ulps_ne(&self, other: &Self, epsilon: Self::Epsilon, max_ulps: u32) -> bool

The inverse of ApproxEq::ulps_eq.

impl Clone for DTrs

fn clone(&self) -> DTrs

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DTrs

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

Formats the value using the given formatter.

impl Default for DTrs

fn default() -> Self

Returns the “default value” for a type.

impl Display for DTrs

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

Formats the value using the given formatter.

impl PartialEq<DTrs> for DTrs

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for DTrs

impl StructuralPartialEq for DTrs