geometry

Documentation

Overview

Package geometry implements basic geometric types and operations.

Index

• type Point
  • func Pt(x, y float64) Point
• type Rectangle
  • func Rect(x0, y0, x1, y1 float64) Rectangle
  • func (r Rectangle) Dx() float64
  • func (r Rectangle) Dy() float64

Types

type Point

type Point struct {
	X, Y float64
}

A Point is an X, Y coordinate pair. The axes increase right and down.

func Pt

func Pt(x, y float64) Point

Pt is shorthand for Point{X, Y}.

type Rectangle

type Rectangle struct {
	Min, Max Point
}

A Rectangle contains the points with Min.X <= X < Max.X, Min.Y <= Y < Max.Y.

func Rect

func Rect(x0, y0, x1, y1 float64) Rectangle

Rect is shorthand for Rectangle{Pt(x0, y0), Pt(x1, y1)}.

func (Rectangle) Dx

func (r Rectangle) Dx() float64

Dx returns r's width.

func (Rectangle) Dy

func (r Rectangle) Dy() float64

Dy returns r's height.