hitmap

Documentation

Index

• Variables
• type Interface
• type M
  • func NewFromGeometry(g tegola.Geometry) (hm M)
  • func NewFromLines(ln [][]maths.Line) (hm M)
  • func NewFromMultiPolygon(mp tegola.MultiPolygon) (hm M)
  • func NewFromPolygon(p tegola.Polygon) (hm M)
  • func (hm *M) AppendSegment(seg ...Segment) *M
  • func (hm *M) LabelFor(pt maths.Pt) maths.Label
• type Segment
  • func NewSegment(label maths.Label, linestring tegola.LineString) (seg Segment)
  • func NewSegmentFromLines(label maths.Label, lines []maths.Line) (seg Segment)
  • func NewSegmentFromRing(label maths.Label, ring []maths.Pt) (seg Segment)
  • func (seg Segment) Contains(pt maths.Pt) bool

Variables

var AllwaysInside allwaysInside

Types

type Interface

type Interface interface {
	LabelFor(pt maths.Pt) maths.Label
}

type M

type M struct {
	DoClip bool
	Clip   maths.Rectangle
	// contains filtered or unexported fields
}

func NewFromGeometry

func NewFromGeometry(g tegola.Geometry) (hm M)

func NewFromLines

func NewFromLines(ln [][]maths.Line) (hm M)

NewFromLines creates a new hitmap where the first ring (made up of lines) is considered inside. The others if there are any are considered outside.

func NewFromMultiPolygon

func NewFromMultiPolygon(mp tegola.MultiPolygon) (hm M)

func NewFromPolygon

func NewFromPolygon(p tegola.Polygon) (hm M)

func (*M) AppendSegment

func (hm *M) AppendSegment(seg ...Segment) *M

func (*M) LabelFor

func (hm *M) LabelFor(pt maths.Pt) maths.Label

type Segment

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

func NewSegment

func NewSegment(label maths.Label, linestring tegola.LineString) (seg Segment)

func NewSegmentFromLines

func NewSegmentFromLines(label maths.Label, lines []maths.Line) (seg Segment)

func NewSegmentFromRing

func NewSegmentFromRing(label maths.Label, ring []maths.Pt) (seg Segment)

func (Segment) Contains

func (seg Segment) Contains(pt maths.Pt) bool