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::MethodCash
Constants included from Parts::Resource
Parts::Resource::LabelProperty
Instance Attribute Summary
Attributes inherited from Formula
#alt, #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_visibility, #moonrise, #moonset, #nearest_past, #sun_noon, #sunrise, #sunset, #thiti_range, #year_event
Methods included from When::Ephemeris
_adjust, _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
_setup_, escape, #method_missing, #method_missing_
Methods included from Parts::Resource
#[], #^, _decode, _encode, _extract_prefix, _instance, _parse, _path_with_prefix, _replace_tags, _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
1917 1918 1919 1920 |
# File 'lib/when_exe/ephemeris.rb', line 1917 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 |