76 lines
1.3 KiB
Go
76 lines
1.3 KiB
Go
package locodedb
|
|
|
|
import (
|
|
"strconv"
|
|
"strings"
|
|
|
|
locodecolumn "github.com/nspcc-dev/neofs-node/pkg/util/locode/column"
|
|
)
|
|
|
|
// Point represents 2D geographic point.
|
|
type Point struct {
|
|
lat, lng float64
|
|
}
|
|
|
|
// NewPoint creates, initializes and returns new Point.
|
|
func NewPoint(lat, lng float64) *Point {
|
|
return &Point{
|
|
lat: lat,
|
|
lng: lng,
|
|
}
|
|
}
|
|
|
|
// Latitude returns Point's latitude.
|
|
func (p Point) Latitude() float64 {
|
|
return p.lat
|
|
}
|
|
|
|
// Longitude returns Point's longitude.
|
|
func (p Point) Longitude() float64 {
|
|
return p.lng
|
|
}
|
|
|
|
// PointFromCoordinates converts UN/LOCODE coordinates to Point.
|
|
func PointFromCoordinates(crd *locodecolumn.Coordinates) (*Point, error) {
|
|
if crd == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
cLat := crd.Latitude()
|
|
cLatDeg := cLat.Degrees()
|
|
cLatMnt := cLat.Minutes()
|
|
|
|
lat, err := strconv.ParseFloat(strings.Join([]string{
|
|
string(cLatDeg[:]),
|
|
string(cLatMnt[:]),
|
|
}, "."), 64)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if !cLat.Hemisphere().North() {
|
|
lat = -lat
|
|
}
|
|
|
|
cLng := crd.Longitude()
|
|
cLngDeg := cLng.Degrees()
|
|
cLngMnt := cLng.Minutes()
|
|
|
|
lng, err := strconv.ParseFloat(strings.Join([]string{
|
|
string(cLngDeg[:]),
|
|
string(cLngMnt[:]),
|
|
}, "."), 64)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if !cLng.Hemisphere().East() {
|
|
lng = -lng
|
|
}
|
|
|
|
return &Point{
|
|
lat: lat,
|
|
lng: lng,
|
|
}, nil
|
|
}
|