Class: When::Ephemeris::VariableYearLengthMethod
- Inherits:
-
Formula
- Object
- BasicTypes::Object
- Formula
- When::Ephemeris::VariableYearLengthMethod
- Defined in:
- lib/when_exe/ephemeris.rb
Overview
Solar Calendar Formula for Variable Year Length Method
Constant Summary
Constants inherited from Formula
Formula::Bs, Formula::CYCLE_0M, Formula::CYCLE_1M, Formula::Sgn
Constants included from When::Ephemeris
AU, AcS, BCENT, C0, CIRCLE, COS, COSL, COSLT, COST, DAY, DEG, EPOCH1800, EPOCH1900, EPOCH1975, EPOCH2000, FARAWAY, JCENT, JYEAR, Jupiter, LIN, Mars, Mercury, Neptune, P0B, P0L, P0P, P0dB, P0dL, P1B, P1L, P1R, P2B, P2L, P2Q, P2dL, P3L, P3Q, P4B, P4L, P4Q, P4dL, P5B, P5L, P5Q, P5dL, P5l, P5n, P5r, P5t, P6B, P6L, P6Q, P6dL, P6l, P6n, P6r, P6t, P7B, P7L, P7R, P8B, P8L, P8R, P9B, P9L, P9R, PSEC, Pluto, SIN, SINL, SINLT, SINT, Saturn, Uranus, Venus
Constants included from Parts::Resource
Parts::Resource::LabelProperty
Instance Attribute Summary
Attributes inherited from Formula
#formula, #graha, #is_dynamical, #lat, #location, #long, #time_standard
Attributes inherited from BasicTypes::Object
Attributes included from Parts::Resource
#_pool, #child, #keys, #locale, #namespace
Instance Method Summary collapse
-
#cn_to_time_(cn, time0 = nil) ⇒ Numeric
周期番号 -> 日時.
-
#time_to_cn(t, cn0 = nil) ⇒ Numeric
日時 -> 周期番号.
Methods inherited from Formula
#_coords, #_to_seed_type, #day_event, #meridian_passage_of_moon, #meridian_passage_of_sun, #moon_noon, #moon_rise, #moon_set, #moon_visibility, #nearest_past, #sun_noon, #sun_rise, #sun_set, #year_event
Methods included from When::Ephemeris
_rot, _to_p2, _to_p3, _to_r3, acos, asin, cosc, cosd, delta_e, delta_p, julian_century_from_2000, julian_year_from_1975, obl, polynomial, root, sinc, sind, tanc, tand, trigonometric
Methods included from Parts::MethodCash
#method_missing, #method_missing_
Methods inherited from BasicTypes::Object
Methods included from Parts::Resource
#[], #^, _extract_prefix, _instance, _parse, _path_with_prefix, _setup_, #each, #enum_for, #hierarchy, #include?, #included?, #iri, #leaf?, #m17n, #map, #next, #parent, #prev, #registered?
Methods included from Parts::Resource::Pool
#[], #[]=, #_pool, #_setup_, #pool_keys
Methods included from Parts::Resource::Synchronize
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class When::Parts::MethodCash
Instance Method Details
#cn_to_time_(cn, time0 = nil) ⇒ Numeric
周期番号 -> 日時
1855 1856 1857 1858 |
# File 'lib/when_exe/ephemeris.rb', line 1855 def cn_to_time_(cn, time0=nil) t, n = (cn / 12.0 - @longitude_shift - @year_epoch).divmod(1) @day_epoch + @year_length * t - @year_delta * t * (t-1) + (@year_length - 2 * @year_delta * t) * n end |