mirror of https://github.com/dsoprea/go-exif.git
55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
package exif
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import (
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"fmt"
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"time"
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"github.com/golang/geo/s1"
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"github.com/golang/geo/s2"
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)
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type GpsDegrees struct {
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Orientation byte
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Degrees, Minutes, Seconds int
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}
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func (d GpsDegrees) String() string {
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return fmt.Sprintf("Degrees<O=[%s] D=(%d) M=(%d) S=(%d)>", string([]byte { d.Orientation }), d.Degrees, d.Minutes, d.Seconds)
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}
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func (d GpsDegrees) Decimal() float64 {
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decimal := float64(d.Degrees) + float64(d.Minutes) / 60.0 + float64(d.Seconds) / 3600.0
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if d.Orientation == 'S' || d.Orientation == 'W' {
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return -decimal
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} else {
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return decimal
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}
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}
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type GpsInfo struct {
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Latitude, Longitude GpsDegrees
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Altitude int
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Timestamp time.Time
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}
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func (gi *GpsInfo) String() string {
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return fmt.Sprintf("GpsInfo<LAT=(%.05f) LON=(%.05f) ALT=(%d) TIME=[%s]>", gi.Latitude.Decimal(), gi.Longitude.Decimal(), gi.Altitude, gi.Timestamp)
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}
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func (gi *GpsInfo) S2CellId() s2.CellID {
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latitude := gi.Latitude.Decimal()
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longitude := gi.Longitude.Decimal()
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ll := s2.LatLng{
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s1.Angle(latitude),
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s1.Angle(longitude),
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}
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ll.Normalized()
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return s2.CellIDFromLatLng(ll)
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}
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