README
¶
Package cloudeng.io/geospatial/astronomy
import cloudeng.io/geospatial/astronomy
Functions
Func December
func December(year int) datetime.CalendarDate
December returns the winter solstice.
Func JDEToCalendar
func JDEToCalendar(jde float64) datetime.CalendarDate
Func June
func June(year int) datetime.CalendarDate
June returns the summer solstice.
Func March
func March(year int) datetime.CalendarDate
March returns the vernal/spring equinox.
Func September
func September(year int) datetime.CalendarDate
September returns the autumnal equinox.
Func SunRiseAndSet
func SunRiseAndSet(date datetime.CalendarDate, place datetime.Place) (time.Time, time.Time)
SunRiseAndSet returns the time of sunrise and sunset for the specified date, latitude and longitude. The returned times are in UTC and must adjusted for the local timezone that lat/long correspond to.
Types
Type Autumn
type Autumn struct{ LocalName string }
Autumn implements datetime.DynamicDateRange for the autumn season.
Methods
func (a Autumn) Evaluate(year int) datetime.CalendarDateRange
func (a Autumn) Name() string
Type AutumnEquinox
type AutumnEquinox struct{}
AutumnEquinox implements datetime.DynamicDateRange for the autumn equinox.
Methods
func (s AutumnEquinox) Evaluate(year int) datetime.CalendarDateRange
func (s AutumnEquinox) Name() string
Type Spring
type Spring struct{}
Spring implements datetime.DynamicDateRange for the spring season.
Methods
func (s Spring) Evaluate(year int) datetime.CalendarDateRange
func (s Spring) Name() string
Type SpringEquinox
type SpringEquinox struct{}
SpringEquinox implements datetime.DynamicDateRange for the spring equinox.
Methods
func (s SpringEquinox) Evaluate(year int) datetime.CalendarDateRange
func (s SpringEquinox) Name() string
Type Summer
type Summer struct{}
Summer implements datetime.DynamicDateRange for the summer season.
Methods
func (s Summer) Evaluate(year int) datetime.CalendarDateRange
func (s Summer) Name() string
Type SummerSolstice
type SummerSolstice struct{}
SummerSolstice implements datetime.DynamicDateRange for the summer solstice.
Methods
func (s SummerSolstice) Evaluate(year int) datetime.CalendarDateRange
func (s SummerSolstice) Name() string
Type SunRise
type SunRise struct{}
SunRise implements datetime.DynamicTimeOfDay for sunrise.
Methods
func (s SunRise) Evaluate(cd datetime.CalendarDate, place datetime.Place) datetime.TimeOfDay
func (s SunRise) Name() string
Type SunSet
type SunSet struct{}
SunSet implements datetime.DynamicTimeOfDay for sunset.
Methods
func (s SunSet) Evaluate(cd datetime.CalendarDate, place datetime.Place) datetime.TimeOfDay
func (s SunSet) Name() string
Type Winter
type Winter struct{}
Winter implements datetime.DynamicDateRange for the winter season.
Methods
func (w Winter) Evaluate(year int) datetime.CalendarDateRange
func (w Winter) Name() string
Type WinterSolstice
type WinterSolstice struct{}
WinterSolstice implements datetime.DynamicDateRange for the winter solstice.
Methods
func (s WinterSolstice) Evaluate(year int) datetime.CalendarDateRange
func (s WinterSolstice) Name() string
Documentation
¶
Index ¶
- func ApparentSolarNoon(date datetime.CalendarDate, place datetime.Place) time.Time
- func December(year int) datetime.CalendarDate
- func JDEToCalendar(jde float64) datetime.CalendarDate
- func June(year int) datetime.CalendarDate
- func March(year int) datetime.CalendarDate
- func September(year int) datetime.CalendarDate
- func SunRiseAndSet(date datetime.CalendarDate, place datetime.Place) (time.Time, time.Time)
- type Autumn
- type AutumnEquinox
- type SolarNoon
- type Spring
- type SpringEquinox
- type Summer
- type SummerSolstice
- type SunRise
- type SunSet
- type Winter
- type WinterSolstice
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func ApparentSolarNoon ¶
func JDEToCalendar ¶
func JDEToCalendar(jde float64) datetime.CalendarDate
func September ¶
func September(year int) datetime.CalendarDate
September returns the autumnal equinox.
func SunRiseAndSet ¶
SunRiseAndSet returns the time of sunrise and sunset for the specified date, latitude and longitude.
Types ¶
type Autumn ¶
type Autumn struct{ LocalName string }
Autumn implements datetime.DynamicDateRange for the autumn season.
type AutumnEquinox ¶
type AutumnEquinox struct{}
AutumnEquinox implements datetime.DynamicDateRange for the autumn equinox.
func (AutumnEquinox) Evaluate ¶
func (s AutumnEquinox) Evaluate(year int) datetime.CalendarDateRange
func (AutumnEquinox) Name ¶
func (s AutumnEquinox) Name() string
type SolarNoon ¶
type SolarNoon struct{}
SolarNoon implements datetime.DynamicTimeOfDay for the solar noon (aka Zenith).
type Spring ¶
type Spring struct{}
Spring implements datetime.DynamicDateRange for the spring season.
type SpringEquinox ¶
type SpringEquinox struct{}
SpringEquinox implements datetime.DynamicDateRange for the spring equinox.
func (SpringEquinox) Evaluate ¶
func (s SpringEquinox) Evaluate(year int) datetime.CalendarDateRange
func (SpringEquinox) Name ¶
func (s SpringEquinox) Name() string
type Summer ¶
type Summer struct{}
Summer implements datetime.DynamicDateRange for the summer season.
type SummerSolstice ¶
type SummerSolstice struct{}
SummerSolstice implements datetime.DynamicDateRange for the summer solstice.
func (SummerSolstice) Evaluate ¶
func (s SummerSolstice) Evaluate(year int) datetime.CalendarDateRange
func (SummerSolstice) Name ¶
func (s SummerSolstice) Name() string
type SunRise ¶
type SunRise struct{}
SunRise implements datetime.DynamicTimeOfDay for sunrise.
type SunSet ¶
type SunSet struct{}
SunSet implements datetime.DynamicTimeOfDay for sunset.
type Winter ¶
type Winter struct{}
Winter implements datetime.DynamicDateRange for the winter season.
type WinterSolstice ¶
type WinterSolstice struct{}
WinterSolstice implements datetime.DynamicDateRange for the winter solstice.
func (WinterSolstice) Evaluate ¶
func (s WinterSolstice) Evaluate(year int) datetime.CalendarDateRange
func (WinterSolstice) Name ¶
func (s WinterSolstice) Name() string
Source Files