Class: When::TimeStandard::LocalApparentTime

Inherits:

TimeStandard

• Object
• BasicTypes::Object
• TimeStandard
• When::TimeStandard::LocalApparentTime

Defined in:

lib/when_exe/timestandard.rb

Overview

地方真太陽時

Direct Known Subclasses

TemporalHourSystem

Constant Summary

Constants inherited from TimeStandard

TimeStandard::Ratio

Constants included from When::TimeStandard

DeltaT, DeltaT0, TAI_UTC

Constants included from Parts::Resource

Parts::Resource::LabelProperty, Parts::Resource::Prefix, Parts::Resource::PrefixIndex, Parts::Resource::PrefixKeys, Parts::Resource::PrefixValues

Instance Attribute Summary

Attributes inherited from BasicTypes::Object

#label

Attributes included from Parts::Resource

#_pool, #child, #keys, #locale, #namespace

Instance Method Summary

• #from_dynamical_time(time) ⇒ Numeric

  dynamical time を local apparent time に変換する.

• #to_dynamical_time(time) ⇒ Numeric

  local apparent time を dynamical time に変換する.

Methods inherited from TimeStandard

#from_dynamical_date, #from_time_object, #has_leap?, #rate_of_clock, #to_dynamical_date, #to_time_object

Methods included from When::TimeStandard

_is_systemtime_universal?, _leap_seconds, _setup_, delta_t, delta_t_coordinated, delta_t_observed, from_dynamical_time, from_time_object, to_dynamical_time, to_time_object

Methods inherited from BasicTypes::Object

#tap

Methods included from Parts::Resource

#[], #^, _extract_prefix, _instance, _parse, _path_with_prefix, #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

#synchronize

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class When::Parts::Resource

Instance Method Details

#from_dynamical_time(time) ⇒ Numeric

dynamical time を local apparent time に変換する

Parameters:

• time (Numeric) —

  dynamical time

Returns:

• (Numeric) —

  local apparent time

# File 'lib/when_exe/timestandard.rb', line 454

def from_dynamical_time(time)
  super(time) + When::TM::Duration::DAY * @datum.equation_of_time(When::TM::JulianDate._t_to_d(time))
end

#to_dynamical_time(time) ⇒ Numeric

local apparent time を dynamical time に変換する

Parameters:

• time (Numeric) —

  local apparent time

Returns:

• (Numeric) —

  dynamical time

# File 'lib/when_exe/timestandard.rb', line 439

def to_dynamical_time(time)
  date   = When::TM::JulianDate._t_to_d(time) - @location.long / (360.0 * When::Coordinates::Spatial::DEGREE)
  diff   = 0
  2.times do
    diff = @datum.equation_of_time(date-diff)
  end
  super(When::TM::JulianDate._d_to_t(date-diff))
end