geo

package
v0.4.1 Latest Latest
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 Go to latest Published: Nov 21, 2022 License: MIT Imports: 11 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var TwoPi = math.Pi * 2
View Source 
var (
	Zero = Point{0, 0}
)

Functions

func Coord 

func Coord(x, y float64) geom.Coord

func CoordX 

func CoordX(x float64) geom.Coord

func CoordY 

func CoordY(y float64) geom.Coord

func Degrees 

func Degrees(radians float64) float64

func Normalize 

func Normalize(rad float64) float64

func Radians 

func Radians(degrees int) float64

func RadiansF 

func RadiansF(degrees float64) float64

Types

type Arc 

type Arc struct {
	Circle
	Angle float64
	Width float64
}

func NewArc 

func NewArc() Arc

func (Arc) Bounds 

func (a Arc) Bounds() Rectangle

func (Arc) Centroid 

func (a Arc) Centroid() Point

func (Arc) Draw 

func (a Arc) Draw(g *gg.Context)

func (Arc) DrawCenter 

func (a Arc) DrawCenter(g *gg.Context)

func (Arc) DrawOutline 

func (a Arc) DrawOutline(g *gg.Context)

func (Arc) Intersect 

func (a Arc) Intersect(geom Geometry) bool

func (Arc) Pos 

func (a Arc) Pos() Point

func (*Arc) Rotate 

func (a *Arc) Rotate(rad float64)

func (*Arc) RotateAround 

func (a *Arc) RotateAround(rad float64, anchor Point)

func (*Arc) Translate 

func (a *Arc) Translate(p Point)

type Circle 

type Circle struct {
	Center Point
	Radius float64
}

func (Circle) Bounds 

func (c Circle) Bounds() Rectangle

func (Circle) Centroid 

func (c Circle) Centroid() Point

func (Circle) Draw 

func (c Circle) Draw(g *gg.Context)

func (Circle) DrawCenter 

func (c Circle) DrawCenter(g *gg.Context)

func (Circle) DrawOutline 

func (c Circle) DrawOutline(g *gg.Context)

func (*Circle) Intersect 

func (c *Circle) Intersect(geom Geometry) bool

func (Circle) Pos 

func (c Circle) Pos() Point

func (Circle) Rotate 

func (Circle) Rotate(rad float64)

func (*Circle) RotateAround 

func (c *Circle) RotateAround(rad float64, anchor Point)

func (*Circle) Translate 

func (c *Circle) Translate(p Point)

type Geometry 

type Geometry interface {
	Pos() Point
	Centroid() Point
	Intersect(geom Geometry) bool
	Translate(p Point)
	Rotate(rad float64)
	RotateAround(rad float64, anchor Point)
	Bounds() Rectangle

	Draw(g *gg.Context)
	DrawOutline(g *gg.Context)
	DrawCenter(g *gg.Context)
	// contains filtered or unexported methods
}

type Group 

type Group struct {
	// contains filtered or unexported fields
}

func NewGroup 

func NewGroup() Group

func (*Group) Add 

func (g *Group) Add(triangle *Triangle)

func (Group) Bounds 

func (g Group) Bounds() Rectangle

func (Group) Centroid 

func (g Group) Centroid() Point

func (Group) Draw 

func (g Group) Draw(ctx *gg.Context)

func (Group) DrawCenter 

func (g Group) DrawCenter(ctx *gg.Context)

func (Group) DrawOutline 

func (g Group) DrawOutline(ctx *gg.Context)

func (*Group) Intersect 

func (g *Group) Intersect(ge Geometry) bool

func (Group) Pos 

func (g Group) Pos() Point

func (*Group) Rotate 

func (g *Group) Rotate(rad float64)

func (*Group) RotateAround 

func (g *Group) RotateAround(rad float64, pivot Point)

func (*Group) SetPos 

func (g *Group) SetPos(pos Point)

func (*Group) Translate 

func (g *Group) Translate(p Point)

type Line 

type Line struct {
	Start, End Point
}

func NewLine 

func NewLine(start, end Point) Line

func (Line) Bounds 

func (l Line) Bounds() Rectangle

func (Line) Centroid 

func (l Line) Centroid() Point

func (Line) Draw 

func (l Line) Draw(g *gg.Context)

func (Line) DrawCenter 

func (l Line) DrawCenter(g *gg.Context)

func (Line) DrawOutline 

func (l Line) DrawOutline(g *gg.Context)

func (Line) Intersect 

func (l Line) Intersect(ge Geometry) bool

func (Line) Pos 

func (l Line) Pos() Point

func (*Line) Rotate 

func (l *Line) Rotate(rad float64)

func (*Line) RotateAround 

func (l *Line) RotateAround(rad float64, pivot Point)

func (*Line) Translate 

func (l *Line) Translate(p Point)

type Point 

type Point struct {
	X, Y float64
}

func NewPointI 

func NewPointI(x, y int32) Point

func Rotate 

func Rotate(p Point, radian float64) Point

func RotateAround 

func RotateAround(p Point, origin Point, radian float64) Point

func (Point) Add 

func (p Point) Add(p2 Point) Point

func (Point) AddXY 

func (p Point) AddXY(x, y float64) Point

func (Point) Bounds 

func (p Point) Bounds() Rectangle

func (Point) Centroid 

func (p Point) Centroid() Point

func (Point) DistanceTo 

func (p Point) DistanceTo(p2 Point) float64

func (Point) Draw 

func (p Point) Draw(g *gg.Context)

func (Point) DrawCenter 

func (p Point) DrawCenter(g *gg.Context)

func (Point) DrawOutline 

func (p Point) DrawOutline(g *gg.Context)

func (*Point) Intersect 

func (p *Point) Intersect(ge Geometry) bool

func (Point) Invert 

func (p Point) Invert() Point

func (Point) Pos 

func (p Point) Pos() Point

func (*Point) Rotate 

func (p *Point) Rotate(rad float64)

func (*Point) RotateAround 

func (p *Point) RotateAround(rad float64, pivot Point)

func (Point) ToCoord 

func (p Point) ToCoord() geom.Coord

func (*Point) Translate 

func (p1 *Point) Translate(p Point)

type Point3D 

type Point3D struct {
	X, Y, Z float64
}

type Rectangle 

type Rectangle struct {
	Point
	W, H float64
}

func FromImgRect 

func FromImgRect(r image.Rectangle) Rectangle

func NewRectangle 

func NewRectangle(x, y, w, h float64) Rectangle

func ToRect 

func ToRect(bounds *geom.Bounds) Rectangle

func (Rectangle) End 

func (r Rectangle) End() Point

func (*Rectangle) Intersect 

func (p *Rectangle) Intersect(ge Geometry) bool

func (Rectangle) ToFyneSize 

func (r Rectangle) ToFyneSize() fyne.Size

func (Rectangle) ToImg 

func (r Rectangle) ToImg() image.Rectangle

type Triangle 

type Triangle struct {
	Orientation int32
	// contains filtered or unexported fields
}

func NewTriangle 

func NewTriangle(pts Point, side int, orientation int32) *Triangle

func (Triangle) Bounds 

func (t Triangle) Bounds() Rectangle

func (*Triangle) Centroid 

func (t *Triangle) Centroid() Point

func (*Triangle) Draw 

func (t *Triangle) Draw(g *gg.Context)

func (*Triangle) DrawCenter 

func (t *Triangle) DrawCenter(g *gg.Context)

func (*Triangle) DrawOutline 

func (t *Triangle) DrawOutline(g *gg.Context)

func (*Triangle) Intersect 

func (t *Triangle) Intersect(ge Geometry) bool

func (*Triangle) Pos 

func (t *Triangle) Pos() Point

func (*Triangle) Rotate 

func (t *Triangle) Rotate(rad float64)

func (*Triangle) RotateAround 

func (t *Triangle) RotateAround(rad float64, pivot Point)

func (*Triangle) Scale 

func (t *Triangle) Scale(ratio float64)

func (*Triangle) Translate 

func (t *Triangle) Translate(p Point)

Source Files

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