Module: Zakuro::Version::Daien::Lunar::Adjustment

Defined in:
lib/zakuro/version/daien/stella/lunar/adjustment.rb

Overview

Adjustment 補正値情報

Defined Under Namespace

Classes: Range, Row, Value

Constant Summary collapse

DAY_LIMIT =

『歴代天文律暦等志彙編　七』中華書房 p.2230

遠/近の地点での中間

Returns:

  • (Hash<Integer>) —

    遠/近の地点での中間

{
  7 => 2701,
  14 => 2363,
  21 => 2024,
  28 => 1686
}.freeze
LIST =
Note:

7日、14日、21日、28日の小余は DAY_LIMIT を参照のこと

『歴代天文律暦等志彙編　七』中華書房 p.2228-2230

Returns:

  • (Array<Row>) —

    月の補正値情報

[
  Row.new(day: 1, range: Range.new, value: Value.new(per: +297, stack: 0)),
  Row.new(day: 2, range: Range.new, value: Value.new(per: +259, stack: +297)),
  Row.new(day: 3, range: Range.new, value: Value.new(per: +220, stack: +556)),
  Row.new(day: 4, range: Range.new, value: Value.new(per: +180, stack: +776)),
  Row.new(day: 5, range: Range.new, value: Value.new(per: +139, stack: +956)),
  Row.new(day: 6, range: Range.new, value: Value.new(per: +97, stack: +1095)),
  Row.new(day: 7, range: Range.new(max: DAY_LIMIT[7]), value: Value.new(per: +48, stack: +1192)),
  Row.new(day: 7, range: Range.new(min: DAY_LIMIT[7]), value: Value.new(per: -6, stack: +1240)), # stack: +1192 + 48
  Row.new(day: 8, range: Range.new, value: Value.new(per: -64, stack: +1234)),
  Row.new(day: 9, range: Range.new, value: Value.new(per: -106, stack: +1170)),
  Row.new(day: 10, range: Range.new, value: Value.new(per: -148, stack: +1064)),
  Row.new(day: 11, range: Range.new, value: Value.new(per: -189, stack: +916)),
  Row.new(day: 12, range: Range.new, value: Value.new(per: -229, stack: +727)),
  Row.new(day: 13, range: Range.new, value: Value.new(per: -267, stack: +498)),
  Row.new(day: 14, range: Range.new(max: DAY_LIMIT[14]), value: Value.new(per: -231, stack: +231)),
  Row.new(day: 14, range: Range.new(min: DAY_LIMIT[14]), value: Value.new(per: -66, stack: 0)), # stack: +232 - 231
  Row.new(day: 15, range: Range.new, value: Value.new(per: -289, stack: -66)),
  Row.new(day: 16, range: Range.new, value: Value.new(per: -250, stack: -355)),
  Row.new(day: 17, range: Range.new, value: Value.new(per: -211, stack: -605)),
  Row.new(day: 18, range: Range.new, value: Value.new(per: -171, stack: -816)),
  Row.new(day: 19, range: Range.new, value: Value.new(per: -130, stack: -987)),
  Row.new(day: 20, range: Range.new, value: Value.new(per: -87, stack: -1117)),
  Row.new(day: 21, range: Range.new(max: DAY_LIMIT[21]), value: Value.new(per: -36, stack: -1204)),
  Row.new(day: 21, range: Range.new(min: DAY_LIMIT[21]), value: Value.new(per: +18, stack: -1240)), # stack: -1204 - 36
  Row.new(day: 22, range: Range.new, value: Value.new(per: +73, stack: -1222)),
  Row.new(day: 23, range: Range.new, value: Value.new(per: +116, stack: -1149)),
  Row.new(day: 24, range: Range.new, value: Value.new(per: +157, stack: -1033)),
  Row.new(day: 25, range: Range.new, value: Value.new(per: +198, stack: -876)),
  Row.new(day: 26, range: Range.new, value: Value.new(per: +237, stack: -678)),
  Row.new(day: 27, range: Range.new, value: Value.new(per: +276, stack: -441)),
  Row.new(day: 28, range: Range.new(max: DAY_LIMIT[28]), value: Value.new(per: +165, stack: -165))
].freeze

Class Method Summary collapse

Class Method Details

.minus_minute(day:, minute:) ⇒ Integer

小余の下げ幅を求める

Parameters:

  • day (Integer) —

    大余

  • minute (Integer) —

    小余

Returns:

  • (Integer) —

    小余の下げ幅



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# File 'lib/zakuro/version/daien/stella/lunar/adjustment.rb', line 234

def minus_minute(day:, minute:)
  limit = DAY_LIMIT.fetch(day, -1)
  # 該当なし
  return minute if limit == -1

  return minute unless minute > limit

  minute - limit
end

.specify(day:, minute:) ⇒ Row

月軌道の補正に必要な基本値を引き当てる

Parameters:

  • forward (True, False) —

    進（遠地点より数える）/退（近地点より数える）

  • day (Integer) —

    大余

  • minute (Integer) —

    小余

Returns:

  • (Row) —

    補正値

Raises:

  • (ArgumentError) —

    引数エラー



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# File 'lib/zakuro/version/daien/stella/lunar/adjustment.rb', line 215

def specify(day:, minute:)
  LIST.each do |row|
    # NOTE: 範囲が重複している場合、最初に引き当てたほうを優先する
    return row if row.match?(day: day, minute: minute)
  end

  raise ArgumentError.new, "invalid parameter: #{day}/#{minute}"
end