Class: When::TimeStandard::UniversalTime

Inherits:
TimeStandard show all
Defined in:
lib/when_exe/timestandard.rb

Overview

協定世界時

Constant Summary

Constants inherited from TimeStandard

TimeStandard::Ratio

Constants included from When::TimeStandard

DeltaT, DeltaT0, DeltaThreshold, TAI_UTC, YearThreshold

Constants included from Parts::Resource

Parts::Resource::ConstList, Parts::Resource::ConstTypes, Parts::Resource::IRIDecode, Parts::Resource::IRIDecodeTable, Parts::Resource::IRIEncode, Parts::Resource::IRIEncodeTable, Parts::Resource::IRIHeader, Parts::Resource::LabelProperty

Constants included from Namespace

Namespace::DC, Namespace::DCQ, Namespace::DCT, Namespace::FOAF, Namespace::OWL, Namespace::RDF, Namespace::RDFC, Namespace::RDFS, Namespace::RSS, Namespace::XSD

Instance Attribute Summary

Attributes inherited from BasicTypes::Object

#label

Attributes included from Parts::Resource

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

Instance Method Summary collapse

Methods inherited from TimeStandard

#from_dynamical_date, #from_dynamical_time, #rate_of_clock, #to_dynamical_date, #to_dynamical_time

Methods included from When::TimeStandard

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

Methods included from Parts::Resource

#[], #^, _abbreviation_to_iri, _decode, _encode, _extract_prefix, _instance, _instantiate, _parse, _path_with_prefix, _replace_tags, _setup_, _setup_info, _simplify_path, base_uri, #each, #enum_for, #hierarchy, #include?, #included?, #iri, #leaf?, #m17n, #map, #parent, #registered?, root_dir

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_time_object(time) ⇒ Numeric

Time オブジェクトを universal time に変換する

Parameters:

Returns:



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# File 'lib/when_exe/timestandard.rb', line 527

def from_time_object(time)
  result = time.to_f * When::TM::Duration::SECOND
  return result if When::TimeStandard._is_systemtime_universal?
  from_dynamical_time(result + DeltaT0)
end

#has_leap? ⇒ Boolean

当該時刻系に閏秒があるか?

Returns:

  • (Boolean) —

    • true 閏秒あり



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# File 'lib/when_exe/timestandard.rb', line 548

def has_leap?
  true
end

#to_time_object(time) ⇒ ::Time

universal time を Time オブジェクトに変換する

Parameters:

  • time (Numeric) —

    universal time

Returns:



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# File 'lib/when_exe/timestandard.rb', line 539

def to_time_object(time)
  time = to_dynamical_time(time) - DeltaT0 unless When::TimeStandard._is_systemtime_universal?
  ::Time.at(+time / When::TM::Duration::SECOND)
end