Struct euler::DVec4

#[repr(C)]
pub struct DVec4 {
    pub x: f64,
    pub y: f64,
    pub z: f64,
    pub w: f64,
}

Double-precision 4D vector.

Fields

x: f64

y: f64

z: f64

w: f64

Implementations

impl DVec4

pub fn new(x: f64, y: f64, z: f64, w: f64) -> Self

Full constructor.

pub fn zero() -> Self

Zero constructor.

pub fn xy(self) -> DVec2

Returns the XY components of the vector.

Examples found in repository

examples/unproject.rs (line 33)

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 xyz(self) -> DVec3

Returns the XYZ components of the vector.

Examples found in repository

examples/unproject.rs (line 34)

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
}

impl DVec4

pub fn dot(self, rhs: DVec4) -> f64

Returns the dot product of two vectors.

pub fn length(self) -> f64

Returns the length (magnitude) of the vector.

pub fn squared_length(self) -> f64

Returns the squared length of the vector.

pub fn normalize(self) -> DVec4

Scales the vector to unit length.

Panics

Panics if the vector is zero.

Trait Implementations

impl Add<DVec4> for DVec4

type Output = DVec4

The resulting type after applying the + operator.

fn add(self, rhs: DVec4) -> Self::Output

Performs the + operation.

impl AddAssign<DVec4> for DVec4

fn add_assign(&mut self, rhs: DVec4)

Performs the += operation.

impl ApproxEq for DVec4

type Epsilon = <Vector4<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 AsRef<[f64; 4]> for DVec4

fn as_ref(&self) -> &[f64; 4]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for DVec4

fn clone(&self) -> DVec4

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DVec4

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

Formats the value using the given formatter.

impl Default for DVec4

fn default() -> DVec4

Returns the “default value” for a type.

impl Display for DVec4

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

Formats the value using the given formatter.

impl Div<f64> for DVec4

type Output = DVec4

The resulting type after applying the / operator.

fn div(self, arg: f64) -> Self::Output

Performs the / operation.

impl DivAssign<f64> for DVec4

fn div_assign(&mut self, rhs: f64)

Performs the /= operation.

impl From<[f64; 4]> for DVec4

fn from(array: [f64; 4]) -> Self

Converts to this type from the input type.

impl<T: Into<DVec3>> From<(T, f64)> for DVec4

fn from(arg: (T, f64)) -> Self

Converts to this type from the input type.

impl<T: Into<DVec2>> From<(T, f64, f64)> for DVec4

fn from(arg: (T, f64, f64)) -> Self

Converts to this type from the input type.

impl From<DVec4> for Vec4

fn from(arg: DVec4) -> Self

Converts to this type from the input type.

impl From<Vec4> for DVec4

fn from(arg: Vec4) -> Self

Converts to this type from the input type.

impl From<f32> for DVec4

fn from(arg: f32) -> Self

Converts to this type from the input type.

impl From<f64> for DVec4

fn from(arg: f64) -> Self

Converts to this type from the input type.

impl Into<[f64; 4]> for DVec4

fn into(self) -> [f64; 4]

Converts this type into the (usually inferred) input type.

impl<'a> Mul<DVec4> for &'a DMat4

type Output = DVec4

The resulting type after applying the * operator.

fn mul(self, rhs: DVec4) -> Self::Output

Performs the * operation.

impl Mul<DVec4> for DMat4

type Output = DVec4

The resulting type after applying the * operator.

fn mul(self, rhs: DVec4) -> Self::Output

Performs the * operation.

impl Mul<DVec4> for f64

type Output = DVec4

The resulting type after applying the * operator.

fn mul(self, arg: DVec4) -> Self::Output

Performs the * operation.

impl Mul<f64> for DVec4

type Output = DVec4

The resulting type after applying the * operator.

fn mul(self, arg: f64) -> Self::Output

Performs the * operation.

impl MulAssign<f64> for DVec4

fn mul_assign(&mut self, rhs: f64)

Performs the *= operation.

impl PartialEq<DVec4> for DVec4

fn eq(&self, other: &DVec4) -> 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 Sub<DVec4> for DVec4

type Output = DVec4

The resulting type after applying the - operator.

fn sub(self, rhs: DVec4) -> Self::Output

Performs the - operation.

impl SubAssign<DVec4> for DVec4

fn sub_assign(&mut self, rhs: DVec4)

Performs the -= operation.

impl<'a> Sum<&'a DVec4> for DVec4

fn sum<I>(iter: I) -> Selfwhere I: Iterator<Item = &'a Self>,

Method which takes an iterator and generates Self from the elements by “summing up” the items.

impl Sum<DVec4> for DVec4

fn sum<I>(iter: I) -> Selfwhere I: Iterator<Item = Self>,

Method which takes an iterator and generates Self from the elements by “summing up” the items.

impl Copy for DVec4

impl StructuralPartialEq for DVec4