Module: GeoMagic::MapPoints

Defined in:
lib/geo_magic/util.rb

Constant Summary collapse

RAD_PER_DEG = 
0.017453293

Instance Method Summary collapse

Instance Method Details

#rad ⇒ Object 



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# File 'lib/geo_magic/util.rb', line 38

def rad
  {:km => 6371, :miles => 3956, :feet => 20895592, :meters => 6371000}                     
end

#the_closest(number, options = {}) ⇒ Object 



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# File 'lib/geo_magic/util.rb', line 68

def the_closest number, options = {}
  calc_method = get_proc(options[:precision] || :normal)
  from_loc = get_location options[:from]
  populate_distance(calc_method, from_loc).sort_by_distance[0..number]
end

#within_distance(dist_obj, options = {:precision => :lowest}) ⇒ Object 



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# File 'lib/geo_magic/util.rb', line 42

def within_distance dist_obj, options = {:precision => :lowest}
  calc_method = get_proc(options[:precision] || :normal)
  from_loc = get_location get_dist_obj(options[:from])

  dist = dist_obj.distance  / (RAD_PER_DEG * rad[dist_obj.unit])

  res = []
  spots = populate_distance(calc_method, from_loc)
  spots.sort_by_distance.select do |item|
    it = get_dist_obj(item)
    if it.dist <= dist
      res << item 
    else 
      break 
    end
  end
  res
end

#within_rectangle(rectangle) ⇒ Object 



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# File 'lib/geo_magic/util.rb', line 61

def within_rectangle rectangle
  self.select do |point|
    obj = get_dist_obj(point)
    rectangle.overlaps? obj
  end
end