geo

package

v0.0.0-...-26b209a Latest Latest Go to latest Published: Feb 12, 2022 License: Apache-2.0 Imports: 3 Imported by: 0

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const (
	// According to Wikipedia, the Earth's radius is about 6,371km
	EARTH_RADIUS = 6371
)

This section is empty.

This section is empty.

type Circle struct {
	Type        string
	Radius      float64
	Coordinates []float64
}

func (c *Circle) CircleBound() (LatLng, float64)

func (c *Circle) Contains(latlng LatLng) bool

type Feature struct {
	Type       string
	Geometry   Geometry
	Properties *Properties
}

type Geometry interface {
	Contains(latlng LatLng) bool

	CircleBound() (LatLng, float64)
}

Geometry is a geometric shape that can be used to verify whether Geo point is contained in there or not.

type LatLng struct {
	Lat float64
	Lng float64
}

func (p *LatLng) GreatCircleDistance(p2 *LatLng) float64

GreatCircleDistance: Calculates the Haversine distance between two points in kilometers. Original Implementation from: http://www.movable-type.co.uk/scripts/latlong.html

type Point struct {
	Type        string
	Coordinates []float64
}

func (p *Point) CircleBound() (LatLng, float64)

func (p *Point) Contains(latlng LatLng) bool

type Polygon struct {
	Type string
	// contains filtered or unexported fields
}

Polygon is representing a polygon line structure.

func NewPolygon(coordinates [][][]float64) *Polygon

NewPolygon creates a new polygon for the provided coordinates.

func (p *Polygon) CircleBound() (LatLng, float64)

func (p *Polygon) Contains(latlng LatLng) bool

Contains checks whether the LatLng is contained in the polygon. It returns true if the LatLng is contained in the polygon and false otherwise.

type Properties struct {
	Name string
}

type Rectangle struct {
	Type        string
	Coordinates [][]float64
}

func (r *Rectangle) CircleBound() (LatLng, float64)

func (r *Rectangle) Contains(latlng LatLng) bool