Class: WeatherPinpointJp::Forecast

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(location, url) ⇒ Forecast

Returns a new instance of Forecast.



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# File 'lib/weather_pinpoint_jp.rb', line 73

def initialize(location, url)
  @location = location
  @url = url

  # load xml
  doc = REXML::Document.new(open(url))
  day = doc.elements['//weathernews/data/day']

  # get starttime
  year  = day.attributes['startYear'].to_i
  month = day.attributes['startMonth'].to_i
  date  = day.attributes['startDate'].to_i
  hour  = day.attributes['startHour'].to_i

  @start_time = Time.local(year, month, date, hour, 0, 0)

  # weather
  @weather = []
  day.elements.each('weather/hour') do |e|
    @weather << e.text.to_i
  end

  @weather_3h = create_weather_3h(@weather)

  # temperature
  @temperature = []
  day.elements.each('temperature/hour') do |e|
    @temperature << e.text.to_i
  end

  # precipitation
  @precipitation = []
  day.elements.each('precipitation/hour') do |e|
    @precipitation << e.text.to_i
  end
end

Instance Attribute Details

#location ⇒ Object (readonly)

Returns the value of attribute location.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def location
  @location
end

#precipitation ⇒ Object (readonly)

Returns the value of attribute precipitation.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def precipitation
  @precipitation
end

#start_time ⇒ Object (readonly)

Returns the value of attribute start_time.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def start_time
  @start_time
end

#temperature ⇒ Object (readonly)

Returns the value of attribute temperature.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def temperature
  @temperature
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def url
  @url
end

#weather ⇒ Object (readonly)

Returns the value of attribute weather.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def weather
  @weather
end

#weather_3h ⇒ Object (readonly)

Returns the value of attribute weather_3h.



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# File 'lib/weather_pinpoint_jp.rb', line 151

def weather_3h
  @weather_3h
end

Instance Method Details

#code_rank(a) ⇒ Object

天気コードの強さを返す



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# File 'lib/weather_pinpoint_jp.rb', line 111

def code_rank(a)
  rank = {
      0 => 0,
    100 => 1,
    550 => 2,
    200 => 3,
    300 => 4,
    400 => 5,
    850 => 6,
  }
  return rank[a] if rank.key?(a)

  return 10
end

#compare_code(a, b) ⇒ Object

どちらの天気コードが影響をおよぼすか？比較



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# File 'lib/weather_pinpoint_jp.rb', line 127

def compare_code(a, b)
  return code_rank(a) <= code_rank(b)
end

#create_weather_3h(codes) ⇒ Object

3時間毎の天気コードに集約



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# File 'lib/weather_pinpoint_jp.rb', line 132

def create_weather_3h(codes)
  codes_3h = []
  count = 0;
  max_code = 0;
  codes.each {|c|
    if compare_code(max_code ,c)
      max_code = c
    end
    count += 1
    if count == 3
      codes_3h << max_code
      max_code = 0
      count = 0
    end
  }

  codes_3h
end