affine

Documentation

Index

• type Center
  • func (c Center) Centroid() d2.Pt
• type Weighted
  • func NewWeighted(capacity int) *Weighted
  • func (w *Weighted) Add(pts ...d2.Pt)
  • func (w *Weighted) Centroid() d2.Pt
  • func (w *Weighted) Weight(pt d2.Pt, weight float64)

Types

type Center

type Center []d2.Pt

Center of a set of points.

func (Center) Centroid

func (c Center) Centroid() d2.Pt

Centroid of the point set.

type Weighted

type Weighted struct {
	Pts     []d2.Pt
	Weights []float64
	Sum     float64
}

Weighted finds the center of a set of weighted points.

func NewWeighted

func NewWeighted(capacity int) *Weighted

NewWeighted pre-allocates the capacity for the calculation.

func (*Weighted) Add

func (w *Weighted) Add(pts ...d2.Pt)

Add points to the weighted set, each with a weight of 1.

func (*Weighted) Centroid

func (w *Weighted) Centroid() d2.Pt

Centroid finds the center of the weighted points.

func (*Weighted) Weight

func (w *Weighted) Weight(pt d2.Pt, weight float64)

Weight adds a point with a weight