Class: Astroscript::Body

Inherits:
Object
  • Object
show all
Defined in:
lib/astroscript/body.rb

Direct Known Subclasses

ConstBody, HouseCusp, MethodBody, Midpoint

Constant Summary collapse

ORBS =

def /(body)

Midpoint.new(self, body)

end

{ tight: 2.0, close: 6.0, max: 12.0 }.freeze
ANGLES = 
%i[AC MC DC IC VX POF POS POH].freeze
STATIONARY_VELOCITY =

RETROGRADE = { # days

ME: 24, VE: 42, MA: 80, JU: 120, SA: 140, UR: 150, NE: 160, PL: 160, CE: 60

}

{ # seconds/day from https://www.astro.com/astrowiki/en/Stationary_Phase
  ME: 300, VE: 180, MA: 90, JU: 60, SA: 60, UR: 20, NE: 10, PL: 10, CE: 7
}.freeze
MAX_VELOCITY =

in minutes from en.wikipedia.org/wiki/Planets_in_astrology

{ # in minutes from https://en.wikipedia.org/wiki/Planets_in_astrology
  ME: (2 * 60) + 25, VE: (1 * 60) + 25, MA: 52, CE: 30, JU: 14 + (40 / 60.0), SA: 8 + (48 / 60.0),
  UR: 4, NE: 2 + (25 / 60.0), PL: 2 + (30 / 60.0), PA: 40 + (30 / 60.0), JN: 39, VA: 36, CH: 10
}.freeze
AVG_VELOCITY =

in minutes

{ # in minutes
  SO: 59 + (8 / 60.0), MO: (13 * 60) + 11 + (36 / 60.0), ME: (1 * 60) + 23, VE: (1 * 60) + 12, MA: 31 + (27 / 60.0), CE: 12 + (40 / 60.0),
  JU: 4 + (59 / 60.0), SA: 2 + (1 / 60.0), UR: 42 / 60.0, NE: 24 / 60.0, PL: 15 / 60.0, CH: 2,
  PA: 12 + (20 / 60.0), JN: 14 + (15 / 60.0), VA: 16 + (15 / 60.0), SD: 0.289, ER: 6.307,
  NN: 3.177
}.freeze
SPEED_ORDER = 
AVG_VELOCITY.sort_by{|_k, v| v }.reverse.map(&:first)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(abbr, calc) ⇒ Body

Returns a new instance of Body.



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# File 'lib/astroscript/body.rb', line 9

def initialize(abbr, calc)
  @abbr = abbr
  @calc = calc
  @abbr = @abbr.upcase if @abbr.size == 2
  @harmonic = 1
  calculate!
end

Instance Attribute Details

#abbr ⇒ Object (readonly)

Returns the value of attribute abbr.



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# File 'lib/astroscript/body.rb', line 5

def abbr
  @abbr
end

#altitude ⇒ Object (readonly)

Returns the value of attribute altitude.



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# File 'lib/astroscript/body.rb', line 5

def altitude
  @altitude
end

#antipode ⇒ Object

Returns the value of attribute antipode.



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# File 'lib/astroscript/body.rb', line 7

def antipode
  @antipode
end

#azimuth ⇒ Object (readonly)

Returns the value of attribute azimuth.



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# File 'lib/astroscript/body.rb', line 5

def azimuth
  @azimuth
end

#calc ⇒ Object (readonly)

Returns the value of attribute calc.



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# File 'lib/astroscript/body.rb', line 5

def calc
  @calc
end

#decl ⇒ Object (readonly)

Returns the value of attribute decl.



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# File 'lib/astroscript/body.rb', line 5

def decl
  @decl
end

#distance ⇒ Object (readonly)

Returns the value of attribute distance.



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# File 'lib/astroscript/body.rb', line 5

def distance
  @distance
end

#harmonic ⇒ Object (readonly)

Returns the value of attribute harmonic.



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# File 'lib/astroscript/body.rb', line 5

def harmonic
  @harmonic
end

#hdist ⇒ Object (readonly)

Returns the value of attribute hdist.



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# File 'lib/astroscript/body.rb', line 5

def hdist
  @hdist
end

#hlat ⇒ Object (readonly)

Returns the value of attribute hlat.



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# File 'lib/astroscript/body.rb', line 5

def hlat
  @hlat
end

#hlon ⇒ Object (readonly)

Returns the value of attribute hlon.



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# File 'lib/astroscript/body.rb', line 5

def hlon
  @hlon
end

#hvel ⇒ Object (readonly)

Returns the value of attribute hvel.



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# File 'lib/astroscript/body.rb', line 5

def hvel
  @hvel
end

#lat ⇒ Object (readonly)

Returns the value of attribute lat.



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# File 'lib/astroscript/body.rb', line 5

def lat
  @lat
end

#ra ⇒ Object (readonly)

Returns the value of attribute ra.



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# File 'lib/astroscript/body.rb', line 5

def ra
  @ra
end

#velocity ⇒ Object (readonly)

Returns the value of attribute velocity.



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# File 'lib/astroscript/body.rb', line 5

def velocity
  @velocity
end

Class Method Details

.phase(b1, b2, opts = {}) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 31

def self.phase(b1, b2, opts = {})
  opts[:method] ||= :lon
  # $logger.debug("#{b1}, #{b2} #{opts[:method]}")
  bb1 = b1.send(opts[:method])
  bb2 = b2.send(opts[:method])
  (bb2 - bb1) % 360
  # if b1.speed_order > b2.speed_order
  #   (bb2-bb1)%360
  # else
  #   (bb1-bb2)%360
  # end
  # rescue => e
  #   raise e, "#{b1.abbr} - #{b2.abbr} => #{opts[:method]} == nil!"
end

Instance Method Details

#*(other) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 425

def *(other)
  harmonize(other)
end

#==(other) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 27

def ==(other)
  lon == other.lon
end

#calculate! ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/astroscript/body.rb', line 104

def calculate!
  # $logger.debug "calculating #{abbr}"
  if @abbr == :SVP
    @lon = -@calc.ayanamsha
    @lat = 0
    @distance = nil
    @velocity = 0
  end
  raise ArgumentError, "unknown Body #{@abbr}!" unless (body = SwissEphemeris::BODIES[@abbr])

  if (id = body[:id])
    results = @calc.calc(id)
    @lon, @lat, @distance, @velocity = results[0..4]
    results = @calc.calc(id, equatorial: true)
    # right ascension and declination
    @ra, @decl = results[0..2]
    @azimuth, @altitude, * = Swe4r.swe_azalt(calc.jd, Swe4r::SE_ECL2HOR, calc.longitude, calc.latitude,
                                             calc.altitude, 1013.25, 15.0, @lon + calc.ayanamsha, @lat.to_f, @distance.to_f)
    @azimuth = (@azimuth + 180) % 360 # adjusts to measure clockwise from north
    # heliocentric
    id = Swe4r::SE_EARTH if abbr == :EA
    results = @calc.calc(id, heliocentric: true)
    @hlon, @hlat, @hdist, @hvel = results[0..4]
  else # virtual body - angles and nodes
    method = if (a = body[:antipode])
               SwissEphemeris::BODIES[a][:name]
             else
               body[:name]
             end
    @calc.get_houses
    method = AstroHelper.symbolize(method)
    # $logger.debug "sending #{method} to @calc"
    if %i[NN SN].include?(@abbr)
      node = @calc.true_node? ? Swe4r::SE_TRUE_NODE : Swe4r::SE_MEAN_NODE
      @lon, @lat, @distance, @velocity = @calc.calc(node)
      # @lon = calc.flip(@lon) if @abbr == :SN # TODO flip after harmonic
    else
      @lon = @calc.send(method)
    end
    # TODO: get values from sun at this degree
  end
  @lon = calc.flip(@lon) if body[:antipode] || antipode
  update!
end

#closer_to_sun?(b2) ⇒ Boolean

this assumes the that BODIES hash is defined in proper order

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 235

def closer_to_sun?(b2)
  i1 = distance_to_sun
  i2 = b2.distance_to_sun
  i1 && i2 && i1 < i2
end

#decan ⇒ Object 



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# File 'lib/astroscript/body.rb', line 395

def decan
  ((to_f % 30) / 10).floor + 1
end

#distance_to_sun ⇒ Object 



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# File 'lib/astroscript/body.rb', line 230

def distance_to_sun
  SwissEphemeris::BODIES.keys.index(abbr) || -1
end

#duad ⇒ Object 



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# File 'lib/astroscript/body.rb', line 437

def duad
  SwissEphemeris::SIGNS[(varga_sign(12) - sign) % 12]
end

#dwad ⇒ Object 



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# File 'lib/astroscript/body.rb', line 449

def dwad
  harmonic_sign(12)
end

#element ⇒ Object 



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# File 'lib/astroscript/body.rb', line 366

def element
  %i[F E A W][sign % 4]
end

#element_sym ⇒ Object 



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# File 'lib/astroscript/body.rb', line 370

def element_sym
  %w[🜂 🜃 🜁 🜄][sign % 4]
end

#feminine? ⇒ Boolean

qualities for interpretations

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 375

def feminine?
  %i[MO VE NE].include?(abbr)
end

#flip ⇒ Object 



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# File 'lib/astroscript/body.rb', line 54

def flip
  @lon += 180
  @lon % 360
end

#flip! ⇒ Object 



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# File 'lib/astroscript/body.rb', line 59

def flip!
  self.antipode = !antipode
  calculate!
end

#gate ⇒ Object 



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# File 'lib/astroscript/body.rb', line 222

def gate
  AstroHelper.deg_to_gate(lon)
end

#handle ⇒ Object 



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# File 'lib/astroscript/body.rb', line 88

def handle
  "#{prefix}#{abbr}"
end

#harmonic_sign(h) ⇒ Object

Harmonic Divisions



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# File 'lib/astroscript/body.rb', line 403

def harmonic_sign(h) # always use 1st harmonic longitude
  SwissEphemeris::SIGNS[varga_sign(h)]
end

#harmonic_signs(*args) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 411

def harmonic_signs *args
  args.map{|h| harmonic_sign(h) }
end

#harmonize(h) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 421

def harmonize(h)
  dup.harmonize!(h)
end

#harmonize!(h) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 415

def harmonize!(h)
  @harmonic = h
  calculate!
  self
end

#house ⇒ Object 



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# File 'lib/astroscript/body.rb', line 350

def house
  @calc.which_house(lon)
end

#in_detriment? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 291

def in_detriment?
  EXALTATION[abbr].first == rotate_sign(6)
rescue NoMethodError
  false
end

#in_domicile? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 273

def in_domicile?
  RULERSHIPS[abbr].include?(sign_sym)
rescue NoMethodError
  false
end

#in_exaltation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 285

def in_exaltation?
  EXALTATION[abbr].first == sign_sym
rescue NoMethodError
  false
end

#in_fall? ⇒ Boolean

opposite to rulership

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 279

def in_fall? # opposite to rulership
  RULERSHIPS[abbr].include?(rotate_sign(6))
rescue NoMethodError
  false
end

#inner? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 387

def inner?
  luminary? || %i[ME VE MA].include?(abbr)
end

#inspect ⇒ Object 



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# File 'lib/astroscript/body.rb', line 17

def inspect
  return super unless defined?(IRB)

  "#{abbr}\t#{AstroHelper.deg_to_s(lon)}"
end

#is_angle? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 242

def is_angle?
  ANGLES.include?(abbr)
end

#lon ⇒ Object Also known as: degree, to_f 



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# File 'lib/astroscript/body.rb', line 64

def lon
  output = @lon # @calc.in_mundo? ? prime_degree : @lon
  output *= @harmonic
  output %= 360
  output += @calc.arc if @calc
  # TODO: make harmonic charts a calc transformer?
  if (t = calc&.transformer)
    t.call(self, output)
  else
    output
  end
end

#luminary? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 391

def luminary?
  %i[SO MO].include?(abbr)
end

#masculine? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 379

def masculine?
  %i[SO MA JU UR PL].include?(abbr)
end

#meridian_degree ⇒ Object

longitude



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# File 'lib/astroscript/body.rb', line 172

def meridian_degree # longitude
  azimuth, altitude, * = Swe4r.swe_azalt(calc.jd, Swe4r::SE_ECL2HOR, calc.longitude, calc.latitude, calc.altitude,
                                         0, 0, @lon, @lat.to_f, @distance.to_f)
  azimuth = (azimuth + 90) % 360
  lon, decl, * = Swe4r.swe_cotrans(90, azimuth, altitude)
  output = [((lon + 180) % 360).round(4), decl.round(4)]
  output[0]
end

#midpoint? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 461

def midpoint?
  is_a?(Astroscript::Midpoint)
end

#modality ⇒ Object 



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# File 'lib/astroscript/body.rb', line 362

def modality
  %i[c f m][sign % 3]
end

#name ⇒ Object 



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# File 'lib/astroscript/body.rb', line 92

def name
  return unless (body = SwissEphemeris::BODIES[abbr])

  body[:name].capitalize
end

#navamsha ⇒ Object 



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# File 'lib/astroscript/body.rb', line 445

def navamsha
  harmonic_sign(9)
end

#outer? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 383

def outer?
  %i[SA UR NE PL].include?(abbr)
end

#pentan ⇒ Object 



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# File 'lib/astroscript/body.rb', line 429

def pentan
  harmonic_sign(6)
end

#personal_angle? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 246

def personal_angle?
  (ANGLES + %i[VX POF POS POH]).include?(abbr)
end

#prefix ⇒ Object 



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# File 'lib/astroscript/body.rb', line 84

def prefix
  @calc&.prefix
end

#prime_degree ⇒ Object Also known as: pvl

According to BPHS the victor is the Graha who is further north. Surya Siddhanta adds that the brighter will win even if in the south. By brighter is meant an unusually brighter planet. To determine this we need to know the natural order of brightness from least bright to most bright which is: Saturn, Mars, Mercury, Jupiter, Venus. On very rare occasions when a planet in its oval shaped revolution is much closer to Earth and the other much further away, one planet can gain a lot of brightness while the other loses brightness. On these occasions a planet that is normally darker than another may appear brighter – in which case it wins the war. To determine the victor in a war, therefore, requires first that elaborate calculations are done based on the diameter of the planet and its proximity to Earth in order to determine the brightness. If the brightness of the two planets follows the regular order, then the Graha with the most northern declination wins the war. If, on the other hand, the planet that is regularly less bright is brighter, than it wins the war and no check for most northern position need be made. Venus, regardless, always wins the war, due to her much greater brilliance she is considered to never be defeated. astrology-videos.com/CourseMaterials/PlanetaryWar.pdf



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# File 'lib/astroscript/body.rb', line 166

def prime_degree
  # lon, decl = Swe4r::swe_cotrans( 90, @azimuth+calc.ayanamsha, @altitude)
  (Swe4r.swe_house_pos(calc.ramc, calc.latitude, calc.oe, "C".ord, @lon + calc.ayanamsha, @lat.to_f) * 30) - 30
end

#print(opts = {}) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 226

def print(opts = {})
  puts to_s({ prefix: true, gate: true, spectrum: true, house: true, theme: true, symbol: true }.merge(opts))
end

#radix ⇒ Object 



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# File 'lib/astroscript/body.rb', line 23

def radix
  harmonize(1)
end

#relative_velocity ⇒ Object 



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# File 'lib/astroscript/body.rb', line 340

def relative_velocity
  return nil unless (minutes = AVG_VELOCITY[abbr])

  begin
    velocity / (minutes / 60.0)
  rescue StandardError
    1.0
  end
end

#retrograde? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 297

def retrograde?
  @velocity&.negative?
end

#ruler(chart = nil) ⇒ Object Also known as: dispositor

RULERSHIP ###



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# File 'lib/astroscript/body.rb', line 263

def ruler(chart = nil)
  ruler = RULERSHIPS.find{|_k, v| v.include? sign_sym }.first
  if chart
    chart.get_body(ruler)
  else
    ruler
  end
end

#sign ⇒ Object 



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# File 'lib/astroscript/body.rb', line 192

def sign
  (lon / 30).floor
end

#sign_and_house ⇒ Object 



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# File 'lib/astroscript/body.rb', line 457

def sign_and_house
  "#{sign_sym.capitalize} in #{house.ordinalize}"
end

#sign_i ⇒ Object

ORBS = 2.0, close: 4.0, max: 16.0 # Cochrane



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# File 'lib/astroscript/body.rb', line 188

def sign_i
  sign
end

#sign_sym ⇒ Object 



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# File 'lib/astroscript/body.rb', line 196

def sign_sym
  SwissEphemeris::SIGNS[sign]
end

#speed_order ⇒ Object 



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# File 'lib/astroscript/body.rb', line 250

def speed_order
  a = abbr
  a = :NN if %i[MN SN].include?(a)
  return -1 * ANGLES.reverse.index(a) if is_angle?

  # https://groups.io/g/SpiritusMundi/topic/speed_of_ascendant_and/83787680
  SPEED_ORDER.index(a)
end

#stationary? ⇒ Boolean

Here is a snippet of the Python code I use for the speeds: # Adjust the speeds to be compatible with the old standalone version # of Haydn’s Jyotish. { # Haydn Huntley [email protected] } daysPerEarthYear = 365.242199 x = 360.0 / daysPerEarthYear ** 2 self.speed *= 0.09706 # Magic constant. self.speed *= 686.971 * x # Orbital period in days, self.speed *= 4332.59 * x # according to Wikipedia. self.speed *= 10759.22 * x self.speed *= 30799.095 * x self.speed *= 60190.03 * x self.speed *= 89865.65 * x self.speed *= 6585.3213 * x # Saros cycle in days. self.speed *= 6585.3213 * x

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 334

def stationary?
  return nil unless (minutes = MAX_VELOCITY[abbr])

  velocity.abs <= (0.05 * minutes / 60.0) # 5% of velocity in degrees/day
end

#subduad ⇒ Object

is this correct



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# File 'lib/astroscript/body.rb', line 441

def subduad # is this correct
  SwissEphemeris::SIGNS[(varga_sign(144) - sign) % 12]
end

#subdwad ⇒ Object 



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# File 'lib/astroscript/body.rb', line 453

def subdwad
  harmonic_sign(144)
end

#subpentan ⇒ Object 



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# File 'lib/astroscript/body.rb', line 433

def subpentan
  harmonic_sign(36)
end

#symbol ⇒ Object 



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# File 'lib/astroscript/body.rb', line 98

def symbol
  return unless (body = SwissEphemeris::BODIES[abbr])

  body[:symbol]
end

#to_dms(opts = {}) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 80

def to_dms(opts = {})
  lon.to_dms(opts)
end

#to_json(*_args) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 465

def to_json(*_args)
  d, m, * = AstroHelper.dms(lon)
  key = "#{name.downcase} in #{SwissEphemeris::SIGNS[sign]}"
  {
    house: house,
    name: name,
    sign_degrees: d,
    sign_minutes: m.round,
    sign_name: SwissEphemeris::SIGNS[sign],
    total_angle: @lon.round(2),
    description: key.titleize,
    key: key
  }
end

#to_s(_opts = {}) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 200

def to_s(_opts = {})
  opts = { angle: true, symbol: true }.merge!(_opts)
  postfix = " "
  if opts[:angle]
    postfix = "r" if retrograde?
    postfix = "s" if stationary?
    dignity = nil
    # dignity = SYMBOLS[:exalted] if in_exaltation? # TODO
    # dignity = SYMBOLS[:detriment] if in_detriment?
  end
  if opts[:symbol]
    opts[:prefix] = format("%4s", symbol) if opts[:symbol]
    opts[:padding] = 2
  end
  opts[:prefix] = "#{opts[:symbol] ? symbol : name}#{dignity}" if opts[:prefix]
  if opts[:house]
    opts[:postfix] = "#{postfix} #{format('%-5s', HOUSES[house])}"
    opts[:postfix] += " (#{AstroHelper::HOUSE_THEMES[house]})" if opts[:theme]
  end
  AstroHelper.deg_to_s(lon, { postfix: postfix }.merge!(opts)) # .strip
end

#transit! ⇒ Object 



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# File 'lib/astroscript/body.rb', line 50

def transit!
  @transit = true
end

#transit? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 46

def transit?
  @transit
end

#triple_harmonic_signs(h) ⇒ Object 



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# File 'lib/astroscript/body.rb', line 407

def triple_harmonic_signs(h)
  harmonic_signs(1, h, h * h)
end

#yang? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 358

def yang?
  sign.even?
end

#yin? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/astroscript/body.rb', line 354

def yin?
  sign.odd?
end