geom

Documentation

Index

• Constants
• func Similar(t1, t2 T, e float64) bool
• type Bounds
  • func NewBounds() Bounds
  • func NewBoundsPoint(point Point) Bounds
  • func (b Bounds) Copy() Bounds
  • func (b Bounds) Empty() bool
  • func (b Bounds) ExtendPoint(point Point) Bounds
  • func (b Bounds) ExtendPoints(points []Point) Bounds
  • func (b Bounds) ExtendPointss(pointss Polygon) Bounds
  • func (b Bounds) IsZero() bool
  • func (b1 Bounds) Overlaps(b2 Bounds) bool
• type Feature
  • func NewFeature(t T, properties interface{}) Feature
• type FeatureCollection
  • func (f FeatureCollection) AppendFeature(newFeature Feature) FeatureCollection
  • func (f FeatureCollection) AppendGeometry(t T, properties interface{}) FeatureCollection
  • func (f FeatureCollection) Bounds(b Bounds) Bounds
• type GeometryCollection
  • func (geometryCollection GeometryCollection) Bounds(b Bounds) Bounds
• type LineString
  • func (lineString LineString) Bounds(b Bounds) Bounds
• type MultiLineString
  • func (multiLineString MultiLineString) Bounds(b Bounds) Bounds
• type MultiPoint
  • func (multiPoint MultiPoint) Bounds(b Bounds) Bounds
• type MultiPolygon
  • func (multiPolygon MultiPolygon) Bounds(b Bounds) Bounds
• type Point
  • func New2Point(x, y float64) Point
  • func NewNPoint(s ...float64) Point
  • func (point Point) Bounds(b Bounds) Bounds
  • func (point Point) Equal(other Point) bool
• type Polygon
  • func (polygon Polygon) Bounds(b Bounds) Bounds
• type Ring
• type T

Constants

const (
	TwoD = iota
	Z
	M
	ZM
)

const (
	X = iota
	Y
)

Functions

func Similar

func Similar(t1, t2 T, e float64) bool

Types

type Bounds

type Bounds struct {
	Min, Max Point
}

func NewBounds

func NewBounds() Bounds

func NewBoundsPoint

func NewBoundsPoint(point Point) Bounds

func (Bounds) Copy

func (b Bounds) Copy() Bounds

func (Bounds) Empty

func (b Bounds) Empty() bool

func (Bounds) ExtendPoint

func (b Bounds) ExtendPoint(point Point) Bounds

func (Bounds) ExtendPoints

func (b Bounds) ExtendPoints(points []Point) Bounds

func (Bounds) ExtendPointss

func (b Bounds) ExtendPointss(pointss Polygon) Bounds

func (Bounds) IsZero

func (b Bounds) IsZero() bool

func (Bounds) Overlaps

func (b1 Bounds) Overlaps(b2 Bounds) bool

type Feature

type Feature struct {
	T
	Properties interface{}
}

Create a Feature to serialize GeoJSON with additional arbitrary properties. Properties may be any JSON-serializable value. Encoding a Feature to another format, like WKT, will only encode the geometry, not the properties.

func NewFeature

func NewFeature(t T, properties interface{}) Feature

type FeatureCollection

type FeatureCollection struct {
	Features   []T
	Properties interface{}
}

func (FeatureCollection) AppendFeature

func (f FeatureCollection) AppendFeature(newFeature Feature) FeatureCollection

func (FeatureCollection) AppendGeometry

func (f FeatureCollection) AppendGeometry(t T, properties interface{}) FeatureCollection

func (FeatureCollection) Bounds

func (f FeatureCollection) Bounds(b Bounds) Bounds

type GeometryCollection

type GeometryCollection []T

func (GeometryCollection) Bounds

func (geometryCollection GeometryCollection) Bounds(b Bounds) Bounds

type LineString

type LineString []Point

func (LineString) Bounds

func (lineString LineString) Bounds(b Bounds) Bounds

type MultiLineString

type MultiLineString []LineString

func (MultiLineString) Bounds

func (multiLineString MultiLineString) Bounds(b Bounds) Bounds

type MultiPoint

type MultiPoint []Point

func (MultiPoint) Bounds

func (multiPoint MultiPoint) Bounds(b Bounds) Bounds

type MultiPolygon

type MultiPolygon []Polygon

func (MultiPolygon) Bounds

func (multiPolygon MultiPolygon) Bounds(b Bounds) Bounds

type Point

type Point []float64

The first two components of Point are X and Y. You may use as many additional components as you like for Z, M, etc. They are ignored, but preserved for GeoJSON encoding.

func New2Point

func New2Point(x, y float64) Point

func NewNPoint

func NewNPoint(s ...float64) Point

func (Point) Bounds

func (point Point) Bounds(b Bounds) Bounds

func (Point) Equal

func (point Point) Equal(other Point) bool

type Polygon

type Polygon []Ring

func (Polygon) Bounds

func (polygon Polygon) Bounds(b Bounds) Bounds

type Ring

type Ring []Point

type T

type T interface {
	Bounds(Bounds) Bounds
}