point

package

v0.0.0-...-5a4f024 Latest Latest Go to latest Published: Sep 5, 2015 License: MIT Imports: 6 Imported by: 4

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/Willyfrog/peano

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Open Source Insights

Documentation ¶

Overview ¶

package point the smallest unit in this project.

Index ¶

func QuickSort(data PointList, sortFunc SortFunction)
func SortCounterRadial(x, y float32) func(*Point, *Point) bool
func SortDiagonal(p1, p2 *Point) bool
func SortDiagonal2(p1, p2 *Point) bool
func SortRadial(x, y float32) func(*Point, *Point) bool
func SortXY(p1, p2 *Point) bool
func SortXy(p1, p2 *Point) bool
func SortYX(p1, p2 *Point) bool
func SortYx(p1, p2 *Point) bool
func SortxY(p1, p2 *Point) bool
func Sortxy(p1, p2 *Point) bool
func SortyX(p1, p2 *Point) bool
func Sortyx(p1, p2 *Point) bool
type Point
- func Random() Point
- func RandomSlice(length int) []Point
- func (pt *Point) Draw(canvas *drawing.Canvas)
- func (p *Point) String() string
type PointList
- func (ps PointList) Polyline(sortFunc SortFunction) PointList
- func (pl *PointList) String() string
type SortFunction

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func QuickSort ¶

func QuickSort(data PointList, sortFunc SortFunction)

Quicksort implementation. This one takes a sorting function instead of asuming that the less than is the only posible ordering. It's recursive, so it may fail for very big datasets

func SortCounterRadial ¶

func SortCounterRadial(x, y float32) func(*Point, *Point) bool

func SortDiagonal ¶

func SortDiagonal(p1, p2 *Point) bool

SortDiagonal \

func SortDiagonal2 ¶

func SortDiagonal2(p1, p2 *Point) bool

SortDiagonal2 /

func SortRadial ¶

func SortRadial(x, y float32) func(*Point, *Point) bool

SortFromRadial Sorts using a tangential from a center point this sorter is different from the rest in that it returns the actual sort as it needs an origin

func SortXY ¶

func SortXY(p1, p2 *Point) bool

Several similar sort functions. A SortXY will give more importance to X then to Y. If any of those characters is lowercase, it'll mean that the order in that case is reversed.

func SortXy ¶

func SortXy(p1, p2 *Point) bool

func SortYX ¶

func SortYX(p1, p2 *Point) bool

func SortYx ¶

func SortYx(p1, p2 *Point) bool

func SortxY ¶

func SortxY(p1, p2 *Point) bool

func Sortxy ¶

func Sortxy(p1, p2 *Point) bool

func SortyX ¶

func SortyX(p1, p2 *Point) bool

func Sortyx ¶

func Sortyx(p1, p2 *Point) bool

Types ¶

type Point ¶

type Point struct {
	X float32
	Y float32
}

func Random ¶

func Random() Point

Random Get a random point whose coordinates are in the range: [0.0, 1.0) if it's not being called from RandomSlice, remember to call `rand.Seed` previously so you get different results each time.

func RandomSlice ¶

func RandomSlice(length int) []Point

RandomSlice get a length of random points

func (*Point) Draw ¶

func (pt *Point) Draw(canvas *drawing.Canvas)

Draw the point into the canvas

func (*Point) String ¶

func (p *Point) String() string

String marshalls a point into a string for reading

type PointList ¶

type PointList []*Point

func (PointList) Polyline ¶

func (ps PointList) Polyline(sortFunc SortFunction) PointList

Polyline define a polyline by ordering an slice of points

func (*PointList) String ¶

func (pl *PointList) String() string

String generate a string form a list of points mostly for debugging purposes

type SortFunction ¶

type SortFunction func(*Point, *Point) bool

Source Files ¶

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