dprec

package
v0.4.0 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Aug 4, 2022 License: MIT Imports: 2 Imported by: 20

Documentation

Overview

Package dprec represents a mathematics library for working with double precision types.

Index

Constants

View Source 
const (
	Pi      = float64(math.Pi)
	Epsilon = float64(0.000000000001)
)

Variables

This section is empty.

Functions

func Abs 

func Abs(value float64) float64

func Clamp 

func Clamp(value, min, max float64) float64

func Cos 

func Cos(angle Angle) float64

func Eq 

func Eq(a, b float64) bool

func EqEps 

func EqEps(a, b, epsilon float64) bool

func Max 

func Max(a, b float64) float64

func Min 

func Min(a, b float64) float64

func Mix added in v0.2.0 

func Mix(a, b, amount float64) float64

func QuatDot added in v0.4.0 

func QuatDot(a, b Quat) float64

func Sign 

func Sign(value float64) float64

func Sin 

func Sin(angle Angle) float64

func Sqrt 

func Sqrt(value float64) float64

func Tan 

func Tan(angle Angle) float64

func Vec2Dot 

func Vec2Dot(a, b Vec2) float64

func Vec3Dot 

func Vec3Dot(a, b Vec3) float64

func Vec4Dot added in v0.3.0 

func Vec4Dot(a, b Vec4) float64

Types

type Angle 

type Angle float64

func Acos added in v0.4.0 

func Acos(cs float64) Angle

func Asin added in v0.4.0 

func Asin(sn float64) Angle

func Degrees 

func Degrees(degrees float64) Angle

func Radians 

func Radians(radians float64) Angle

func (Angle) Degrees 

func (a Angle) Degrees() float64

func (Angle) Radians 

func (a Angle) Radians() float64

type Mat3 

type Mat3 struct {
	M11, M12, M13 float64
	M21, M22, M23 float64
	M31, M32, M33 float64
}

func ColumnMajorArrayToMat3 added in v0.3.0 

func ColumnMajorArrayToMat3(values [16]float64) Mat3

func FastInverseMat3 

func FastInverseMat3(m Mat3) Mat3

FastInverseMat3 calculates the inverse of the matrix with a few caveats.

The matrix should be a transformation one that was constructed through the multiplication of one or more of the following transformations: identity, translation, rotation.

For all other scenarios (e.g. a scale transformation was used), the InverseMat3 method should be used instead, though it will be slower.

func IdentityMat3 

func IdentityMat3() Mat3

func InverseMat3 

func InverseMat3(m Mat3) Mat3

InverseMat3 calculates the inverse of the matrix.

The behavior is undefined if the matrix is not reversible (i.e. has a zero determinant).

func Mat3MultiProd 

func Mat3MultiProd(first Mat3, others ...Mat3) Mat3

func Mat3Prod 

func Mat3Prod(left, right Mat3) Mat3

func NewMat3 

func NewMat3(
	m11, m12, m13 float64,
	m21, m22, m23 float64,
	m31, m32, m33 float64,
) Mat3

func OrthoMat3 

func OrthoMat3(left, right, top, bottom float64) Mat3

func RotationMat3 

func RotationMat3(angle Angle) Mat3

func RowMajorArrayToMat3 added in v0.3.0 

func RowMajorArrayToMat3(values [16]float64) Mat3

func ScaleMat3 

func ScaleMat3(x, y float64) Mat3

func TransformationMat3 

func TransformationMat3(orientX, orientY, translation Vec2) Mat3

func TranslationMat3 

func TranslationMat3(x, y float64) Mat3

func ZeroMat3 

func ZeroMat3() Mat3

func (Mat3) Column1 added in v0.3.0 

func (m Mat3) Column1() Vec3

func (Mat3) Column2 added in v0.3.0 

func (m Mat3) Column2() Vec3

func (Mat3) Column3 added in v0.3.0 

func (m Mat3) Column3() Vec3

func (Mat3) ColumnMajorArray added in v0.3.0 

func (m Mat3) ColumnMajorArray() [9]float64

func (Mat3) GoString 

func (m Mat3) GoString() string

func (Mat3) OrientationX 

func (m Mat3) OrientationX() Vec2

func (Mat3) OrientationY 

func (m Mat3) OrientationY() Vec2

func (Mat3) Row1 added in v0.3.0 

func (m Mat3) Row1() Vec3

func (Mat3) Row2 added in v0.3.0 

func (m Mat3) Row2() Vec3

func (Mat3) Row3 added in v0.3.0 

func (m Mat3) Row3() Vec3

func (Mat3) RowMajorArray added in v0.3.0 

func (m Mat3) RowMajorArray() [9]float64

func (Mat3) Translation 

func (m Mat3) Translation() Vec2

type Mat4 

type Mat4 struct {
	M11, M12, M13, M14 float64
	M21, M22, M23, M24 float64
	M31, M32, M33, M34 float64
	M41, M42, M43, M44 float64
}

func ColumnMajorArrayToMat4 added in v0.3.0 

func ColumnMajorArrayToMat4(values [16]float64) Mat4

func FastInverseMat4 

func FastInverseMat4(m Mat4) Mat4

FastInverseMat4 calculates the inverse of the matrix with a few caveats.

The matrix should be a transformation one that was constructed through the multiplication of one or more of the following transformations: identity, translation, rotation.

For all other scenarios (e.g. a scale transformation was used), the InverseMat4 method should be used instead, though it will be slower.

func IdentityMat4 

func IdentityMat4() Mat4

func InverseMat4 

func InverseMat4(m Mat4) Mat4

InverseMat4 calculates the inverse of the matrix.

The behavior is undefined if the matrix is not reversible (i.e. has a zero determinant).

func Mat4MultiProd 

func Mat4MultiProd(first Mat4, others ...Mat4) Mat4

func Mat4Prod 

func Mat4Prod(left, right Mat4) Mat4

func NewMat4 

func NewMat4(
	m11, m12, m13, m14 float64,
	m21, m22, m23, m24 float64,
	m31, m32, m33, m34 float64,
	m41, m42, m43, m44 float64,
) Mat4

func OrientationMat4 

func OrientationMat4(orientX, orientY, orientZ Vec3) Mat4

func OrthoMat4 

func OrthoMat4(left, right, top, bottom, near, far float64) Mat4

func PerspectiveMat4 

func PerspectiveMat4(left, right, bottom, top, near, far float64) Mat4

func RotationMat4 

func RotationMat4(angle Angle, x, y, z float64) Mat4

func RowMajorArrayToMat4 added in v0.3.0 

func RowMajorArrayToMat4(values [16]float64) Mat4

func ScaleMat4 

func ScaleMat4(x, y, z float64) Mat4

func TRSMat4 added in v0.3.0 

func TRSMat4(translation Vec3, rotation Quat, scale Vec3) Mat4

func TransformationMat4 

func TransformationMat4(orientX, orientY, orientZ, translation Vec3) Mat4

func TranslationMat4 

func TranslationMat4(x, y, z float64) Mat4

func ZeroMat4 

func ZeroMat4() Mat4

func (Mat4) Column1 added in v0.3.0 

func (m Mat4) Column1() Vec4

func (Mat4) Column2 added in v0.3.0 

func (m Mat4) Column2() Vec4

func (Mat4) Column3 added in v0.3.0 

func (m Mat4) Column3() Vec4

func (Mat4) Column4 added in v0.3.0 

func (m Mat4) Column4() Vec4

func (Mat4) ColumnMajorArray 

func (m Mat4) ColumnMajorArray() [16]float64

func (Mat4) GoString 

func (m Mat4) GoString() string

func (Mat4) OrientationX 

func (m Mat4) OrientationX() Vec3

func (Mat4) OrientationY 

func (m Mat4) OrientationY() Vec3

func (Mat4) OrientationZ 

func (m Mat4) OrientationZ() Vec3

func (Mat4) RotationQuat added in v0.2.0 

func (m Mat4) RotationQuat() Quat

func (Mat4) Row1 added in v0.3.0 

func (m Mat4) Row1() Vec4

func (Mat4) Row2 added in v0.3.0 

func (m Mat4) Row2() Vec4

func (Mat4) Row3 added in v0.3.0 

func (m Mat4) Row3() Vec4

func (Mat4) Row4 added in v0.3.0 

func (m Mat4) Row4() Vec4

func (Mat4) RowMajorArray 

func (m Mat4) RowMajorArray() [16]float64

func (Mat4) Scale added in v0.2.0 

func (m Mat4) Scale() Vec3

func (Mat4) Translation 

func (m Mat4) Translation() Vec3

type Quat 

type Quat struct {
	W float64
	X float64
	Y float64
	Z float64
}

func ConjugateQuat 

func ConjugateQuat(q Quat) Quat

func IdentityQuat 

func IdentityQuat() Quat

func InverseQuat 

func InverseQuat(q Quat) Quat

func NegativeQuat added in v0.4.0 

func NegativeQuat(q Quat) Quat

func NewQuat 

func NewQuat(w, x, y, z float64) Quat

func QuatDiff added in v0.4.0 

func QuatDiff(second, first Quat, shortest bool) Quat

func QuatLerp added in v0.4.0 

func QuatLerp(first, second Quat, t float64) Quat

func QuatPow added in v0.4.0 

func QuatPow(q Quat, pow float64) Quat

func QuatProd 

func QuatProd(first, second Quat) Quat

func QuatScalarProd 

func QuatScalarProd(q Quat, value float64) Quat

func QuatScalarQuot 

func QuatScalarQuot(q Quat, value float64) Quat

func QuatSlerp added in v0.4.0 

func QuatSlerp(first, second Quat, t float64) Quat

func RotationQuat 

func RotationQuat(angle Angle, direction Vec3) Quat

func UnitQuat 

func UnitQuat(q Quat) Quat

func (Quat) GoString 

func (q Quat) GoString() string

func (Quat) Norm 

func (q Quat) Norm() float64

func (Quat) OrientationX 

func (q Quat) OrientationX() Vec3

func (Quat) OrientationY 

func (q Quat) OrientationY() Vec3

func (Quat) OrientationZ 

func (q Quat) OrientationZ() Vec3

func (Quat) SqrNorm 

func (q Quat) SqrNorm() float64

type Vec2 

type Vec2 struct {
	X float64
	Y float64
}

func ArrayToVec2 added in v0.3.0 

func ArrayToVec2(array [2]float64) Vec2

func BasisXVec2 

func BasisXVec2() Vec2

func BasisYVec2 

func BasisYVec2() Vec2

func InverseVec2 

func InverseVec2(vector Vec2) Vec2

func NewVec2 

func NewVec2(x, y float64) Vec2

func ResizedVec2 

func ResizedVec2(vector Vec2, newLength float64) Vec2

func UnitVec2 

func UnitVec2(vector Vec2) Vec2

func Vec2Diff 

func Vec2Diff(a, b Vec2) Vec2

func Vec2Lerp added in v0.4.0 

func Vec2Lerp(a, b Vec2, t float64) Vec2

func Vec2Prod 

func Vec2Prod(vector Vec2, value float64) Vec2

func Vec2Quot 

func Vec2Quot(vector Vec2, value float64) Vec2

func Vec2Sum 

func Vec2Sum(a, b Vec2) Vec2

func ZeroVec2 

func ZeroVec2() Vec2

func (Vec2) GoString 

func (v Vec2) GoString() string

func (Vec2) IsZero 

func (v Vec2) IsZero() bool

func (Vec2) Length 

func (v Vec2) Length() float64

func (Vec2) SqrLength 

func (v Vec2) SqrLength() float64

type Vec3 

type Vec3 struct {
	X float64
	Y float64
	Z float64
}

func ArrayToVec3 added in v0.3.0 

func ArrayToVec3(array [3]float64) Vec3

func BasisXVec3 

func BasisXVec3() Vec3

func BasisYVec3 

func BasisYVec3() Vec3

func BasisZVec3 

func BasisZVec3() Vec3

func InverseVec3 

func InverseVec3(vector Vec3) Vec3

func Mat3Vec3Prod 

func Mat3Vec3Prod(mat Mat3, vec Vec3) Vec3

func Mat4Vec3Transformation 

func Mat4Vec3Transformation(mat Mat4, vec Vec3) Vec3

func NewVec3 

func NewVec3(x, y, z float64) Vec3

func QuatVec3Rotation 

func QuatVec3Rotation(q Quat, v Vec3) Vec3

func ResizedVec3 

func ResizedVec3(vector Vec3, newLength float64) Vec3

func UnitVec3 

func UnitVec3(vector Vec3) Vec3

func Vec3Cross 

func Vec3Cross(a, b Vec3) Vec3

func Vec3Diff 

func Vec3Diff(a, b Vec3) Vec3

func Vec3Lerp added in v0.4.0 

func Vec3Lerp(a, b Vec3, t float64) Vec3

func Vec3Prod 

func Vec3Prod(vector Vec3, value float64) Vec3

func Vec3Quot 

func Vec3Quot(vector Vec3, value float64) Vec3

func Vec3Sum 

func Vec3Sum(a, b Vec3) Vec3

func ZeroVec3 

func ZeroVec3() Vec3

func (Vec3) Array added in v0.2.0 

func (v Vec3) Array() [3]float64

func (Vec3) GoString 

func (v Vec3) GoString() string

func (Vec3) IsZero 

func (v Vec3) IsZero() bool

func (Vec3) Length 

func (v Vec3) Length() float64

func (Vec3) SqrLength 

func (v Vec3) SqrLength() float64

type Vec4 

type Vec4 struct {
	X float64
	Y float64
	Z float64
	W float64
}

func ArrayToVec4 added in v0.3.0 

func ArrayToVec4(array [4]float64) Vec4

func InverseVec4 

func InverseVec4(vector Vec4) Vec4

func Mat4Vec4Prod 

func Mat4Vec4Prod(mat Mat4, vec Vec4) Vec4

func NewVec4 

func NewVec4(x, y, z, w float64) Vec4

func Vec4Diff 

func Vec4Diff(a, b Vec4) Vec4

func Vec4Lerp added in v0.4.0 

func Vec4Lerp(a, b Vec4, t float64) Vec4

func Vec4Prod 

func Vec4Prod(vector Vec4, value float64) Vec4

func Vec4Quot 

func Vec4Quot(vector Vec4, value float64) Vec4

func Vec4Sum 

func Vec4Sum(a, b Vec4) Vec4

func ZeroVec4 

func ZeroVec4() Vec4

func (Vec4) Array added in v0.2.0 

func (v Vec4) Array() [4]float64

func (Vec4) GoString 

func (v Vec4) GoString() string

func (Vec4) IsZero 

func (v Vec4) IsZero() bool

func (Vec4) VecXYZ 

func (v Vec4) VecXYZ() Vec3

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.