Class: Horoscope::Horo

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

Constant Summary collapse

PLANETS = 
["As", "Su", "Mo", "Ma", "Me", "Ju", "Ve", "Sa", "Ra", "Ke"]
IMG_SIZE = 
440
SPLIT = 
IMG_SIZE/4
XBIAS = 
10
YBIAS = 
15
PADDING = 
15
CENTER_PADDING = 
40
ERRORS = 
{
  :Date => "Error: Invalid Date. Enter a valid date between years 1600 AD and 2300 AD",
  :Zone => "Error: Please pass a valid time zone ranging from -12.0 to +12.0",
  :Lat  => "Error: Invalid Latitude. Enter between -90.0 to +90.0",
  :Lon  => "Error: Invalid Longitude. Enter between -180.0 to +180.0"
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data = {}) ⇒ Horo

Returns a new instance of Horo.



33
34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'lib/horoscope.rb', line 33

def initialize(data={})
  @data = data

  @errors = []

  @computed = false
  @datetime = data[:datetime]
  @zone = data[:zone]
  @lat = data[:lat]
  @lon = data[:lon]
  @positions = Hash[PLANETS.map {|x| [x, nil]}]
  @positions_rev = [[], [], [], [], [], [], [], [], [], [], [], []]
end

Instance Attribute Details

#datetime ⇒ Object

Returns the value of attribute datetime.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def datetime
  @datetime
end

#errors ⇒ Object

Returns the value of attribute errors.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def errors
  @errors
end

#lat ⇒ Object

Returns the value of attribute lat.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def lat
  @lat
end

#lon ⇒ Object

Returns the value of attribute lon.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def lon
  @lon
end

#positions ⇒ Object

Returns the value of attribute positions.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def positions
  @positions
end

#positions_rev ⇒ Object

Returns the value of attribute positions_rev.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def positions_rev
  @positions_rev
end

#zone ⇒ Object

Returns the value of attribute zone.



31
32
33
 
# File 'lib/horoscope.rb', line 31

def zone
  @zone
end

Instance Method Details

#compute ⇒ Object 



47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
 
# File 'lib/horoscope.rb', line 47

def compute
  return @errors if validate_values.size > 0 

  tpos = [10980, 16233, 15880, 16451, 15210, 13722, 13862, 7676, 4306, 15106]
  tsp, pos, spd = [Array.new(10, 0), Array.new(10, 0), Array.new(10, 0)]
  jd = Planet.get_jul_day(@datetime.month, @datetime.day, @datetime.year)
  time = @datetime.hour + (@datetime.min / 60.0)
  time -= @zone
  jd += time / 24.0
  t = (jd - 0.5 - Planet::J2000) / 36525.0
  Planet.get_planets(t, pos, spd)
  pos[0] = Planet.ascendant(t, time, @lon, @lat)
  ayn = Planet.get_ayan(t)
  (0..9).each do |i|
    tpos[i] = ((pos[i] + ayn) % 360.0 * 60.0).to_i
    if tpos[i] < 0
      tpos = tpos
      n = i
      tpos[n] += 21600
    end
    tsp[i] = (spd[i] * 3600.0).to_i
  end
  count = 0
  (0..11).each do |i|
    (0..9).each do |j|
      if (tpos[j] / 1800 == i)
        @positions[PLANETS[j]] = i 
        @positions_rev[i] << PLANETS[j]
      end
    end
  end
  @computed = true
  return @positions
end

#create_chart(options = {}) ⇒ Object 



82
83
84
85
86
87
88
89
90
 
# File 'lib/horoscope.rb', line 82

def create_chart(options= {})
  compute unless @computed
  case options[:format]
  when :html
    draw_chart_as_html
  else
    draw_chart_as_png
  end
end