Contents

module Mongoid
  module Geospatial
    # Main Geometry Array
    # Holds Lines/Polygons....
    class GeometryField < Array
      def bounding_box
        max_x, min_x = -Float::MAX, Float::MAX
        max_y, min_y = -Float::MAX, Float::MAX
        each do |point|
          max_y = point[1] if point[1] > max_y
          min_y = point[1] if point[1] < min_y
          max_x = point[0] if point[0] > max_x
          min_x = point[0] if point[0] < min_x
        end
        [[min_x, min_y], [max_x, max_y]]
      end
      alias_method :bbox, :bounding_box

      def center_point
        min, max = *bbox
        [(min[0] + max[0]) / 2.0, (min[1] + max[1]) / 2.0]
      end
      alias_method :center, :center_point

      def radius(r = 1)
        [center, r]
      end

      def radius_sphere(r = 1, unit = :km)
        radius r.to_f / Mongoid::Geospatial.earth_radius[unit]
      end

      class << self
        # Database -> Object
        def demongoize(o)
          new(o)
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
mongoid-geospatial-4.0.0	lib/mongoid/geospatial/fields/geometry_field.rb
mongoid-geospatial-3.9.0	lib/mongoid/geospatial/fields/geometry_field.rb