package locodedb import ( "fmt" "strconv" locodecolumn "github.com/nspcc-dev/neofs-node/pkg/util/locode/column" ) // Point represents a 2D geographic point. type Point struct { lat, lng float64 } // NewPoint creates, initializes and returns a new Point. func NewPoint(lat, lng float64) *Point { return &Point{ lat: lat, lng: lng, } } // Latitude returns the Point's latitude. func (p Point) Latitude() float64 { return p.lat } // Longitude returns the Point's longitude. func (p Point) Longitude() float64 { return p.lng } // PointFromCoordinates converts a UN/LOCODE coordinates to a 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 := toDecimal(cLatDeg[:], cLatMnt[:]) if err != nil { return nil, fmt.Errorf("could not parse latitude: %w", err) } if !cLat.Hemisphere().North() { lat = -lat } cLng := crd.Longitude() cLngDeg := cLng.Degrees() cLngMnt := cLng.Minutes() lng, err := toDecimal(cLngDeg[:], cLngMnt[:]) if err != nil { return nil, fmt.Errorf("could not parse longitude: %w", err) } if !cLng.Hemisphere().East() { lng = -lng } return &Point{ lat: lat, lng: lng, }, nil } func toDecimal(intRaw, minutesRaw []byte) (float64, error) { integer, err := strconv.ParseFloat(string(intRaw), 64) if err != nil { return 0, fmt.Errorf("could not parse integer part: %w", err) } decimal, err := minutesToDegrees(minutesRaw) if err != nil { return 0, fmt.Errorf("could not parse decimal part: %w", err) } return integer + decimal, nil } // minutesToDegrees converts minutes to decimal part of a degree. func minutesToDegrees(raw []byte) (float64, error) { minutes, err := strconv.ParseFloat(string(raw), 64) if err != nil { return 0, err } return minutes / 60, nil }