d3

package
v0.0.0-...-c743823 Latest Latest
Warning

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

 Go to latest Published: Oct 22, 2020 License: BSD-3-Clause Imports: 4 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var Prec = 4

Prec is the precision for the String method on F

Functions

This section is empty.

Types

type D3 

type D3 struct {
	X, Y, Z float64
}

func (D3) Mag 

func (d D3) Mag() float64

func (D3) Mag2 

func (d D3) Mag2() float64

func (D3) String 

func (d D3) String() string

type Point 

type Point interface {
	Pt() Pt
}

type Pt 

type Pt D3

func (Pt) Add 

func (pt Pt) Add(v V) Pt

func (Pt) Distance 

func (pt Pt) Distance(pt2 Pt) float64

Distance returns the distance between to points

func (Pt) Mag 

func (pt Pt) Mag() float64

func (Pt) Mag2 

func (pt Pt) Mag2() float64

func (Pt) Multiply 

func (pt Pt) Multiply(scale float64) Pt

func (Pt) Pt 

func (pt Pt) Pt() Pt

func (Pt) Round 

func (pt Pt) Round() Pt

func (Pt) String 

func (pt Pt) String() string

String fulfills Stringer, returns the vector as "(X, Y)"

func (Pt) Subtract 

func (pt Pt) Subtract(pt2 Pt) V

type Pt1 

type Pt1 interface {
	Pt1(t0 float64) Pt
}

type Pt2 

type Pt2 interface {
	Pt2(t0, t1 float64) Pt
}

type Pt2c1 

type Pt2c1 interface {
	Pt2(t0 float64) Pt1
}

type Q 

type Q struct {
	A, B, C, D float64
}

Q is a quaternion used for rotations. B, C and D correspond to the X, Y and Z axis.

func QV 

func QV(v V) Q

func QX 

func QX(ang angle.Rad) Q

func QY 

func QY(ang angle.Rad) Q

func QZ 

func QZ(ang angle.Rad) Q

func (Q) Normalize 

func (q Q) Normalize() Q

func (Q) Product 

func (q Q) Product(q2 Q) Q

func (Q) String 

func (q Q) String() string

func (Q) T 

func (q Q) T() *T

func (Q) TInv 

func (q Q) TInv() *T

type Rotation 

type Rotation struct {
	Angle angle.Rad
	Plane RotationPlane
}

func (Rotation) Pair 

func (r Rotation) Pair() [2]*T

func (Rotation) T 

func (r Rotation) T() *T

func (Rotation) TInv 

func (r Rotation) TInv() *T

type RotationPlane 

type RotationPlane byte
const (
	XY RotationPlane = iota
	XZ
	YZ
)

type Scale 

type Scale V

func ScaleF 

func ScaleF(f float64) Scale

func (Scale) Pair 

func (s Scale) Pair() [2]*T

Scale returns the scale transform represented by V and it's inverse

func (Scale) T 

func (s Scale) T() *T

func (Scale) TInv 

func (s Scale) TInv() *T

type T 

type T [4][4]float64

func Identity 

func Identity() *T

func TProd 

func TProd(ts ...*T) *T

func (*T) Inversion 

func (t *T) Inversion() (*T, bool)

func (*T) Pt 

func (t *T) Pt(pt Pt) Pt

func (*T) PtF 

func (t *T) PtF(pt Pt) (Pt, float64)

func (*T) PtScl 

func (t *T) PtScl(pt Pt) Pt

func (*T) Pts 

func (t *T) Pts(pts []Pt) []Pt

func (*T) PtsScl 

func (t *T) PtsScl(pts []Pt) []Pt

func (T) String 

func (t T) String() string

func (*T) T 

func (t *T) T(t2 *T) *T

func (*T) V 

func (t *T) V(v V) V

func (*T) VF 

func (t *T) VF(v V) (V, float64)

type TGen 

type TGen interface {
	T() *T
	TInv() *T
	Pair() [2]*T
}

type TransformSet 

type TransformSet struct {
	Head, Middle, Tail []*T
}

func NewTSet 

func NewTSet() *TransformSet

func (*TransformSet) Add 

func (ts *TransformSet) Add(t *T) *TransformSet

func (*TransformSet) AddBoth 

func (ts *TransformSet) AddBoth(t [2]*T) *TransformSet

func (*TransformSet) Get 

func (ts *TransformSet) Get() *T

type Translate 

type Translate V

func (Translate) Pair 

func (t Translate) Pair() [2]*T

Translate returns the translate transform represented by V and it's inverse

func (Translate) T 

func (t Translate) T() *T

func (Translate) TInv 

func (t Translate) TInv() *T

type V 

type V D3

V is a 3D vector.

func (V) Abs 

func (v V) Abs() V

Abs returns a vector where all components are positive.

func (V) Add 

func (v V) Add(v2 V) V

Add two vectors.

func (V) Ang 

func (v V) Ang(v2 V) angle.Rad

Ang returns the angle between two vectors

func (V) Cross 

func (v V) Cross(v2 V) V

Cross returns the cross product of the two vectors

func (V) Dot 

func (v V) Dot(v2 V) float64

Dot returns the dot product of two vectors

func (V) Mag 

func (v V) Mag() float64

Mag returns the magnitude (distance to origin) of the vector

func (V) Mag2 

func (v V) Mag2() float64

Mag2 Returns the sqaure of the magnitude of the vector.

func (V) Multiply 

func (v V) Multiply(scale float64) V

Multiply a vector by a scale.

func (V) Normal 

func (v V) Normal() V

Normal returns a vector that has the same orientation but has a length of 1.

func (V) Project 

func (v V) Project(v2 V) V

Project v2 onto v.

func (V) String 

func (v V) String() string

String fulfills Stringer, returns the vector as "(X, Y)"

func (V) Subtract 

func (v V) Subtract(v2 V) V

Subtract is the difference between two vectors.

func (V) V 

func (v V) V() V

V is here to fulfill Vector interface.

type V1 

type V1 interface {
	V1(t0 float64) V
}

type Vector 

type Vector interface {
	V() V
}

Source Files

View all Source files

Directories

Path Synopsis
Package affine allows for combinations of points where the sum of the coefficients is zero.
 Package affine allows for combinations of points where the sum of the coefficients is zero.
curve
line
render
ffmpeg
raytrace
scene
zbuf
shape
plane
polygon
triangle
cc
mesh

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.