Class: Mongoid::Geospatial::GeometryField

Inherits:
Array
  • Object
show all
Defined in:
lib/mongoid_geospatial/wrappers/rgeo.rb,
lib/mongoid_geospatial/fields/geometry_field.rb

Direct Known Subclasses

Box, Circle, Line, Polygon

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Array

#to_xy

Class Method Details

.demongoize(o) ⇒ Object

Database -> Object



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# File 'lib/mongoid_geospatial/fields/geometry_field.rb', line 36

def demongoize(o)
  self.new(o)
end

Instance Method Details

#bounding_box ⇒ Object Also known as: bbox 



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# File 'lib/mongoid_geospatial/fields/geometry_field.rb', line 5

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

#center_point ⇒ Object Also known as: center 



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# File 'lib/mongoid_geospatial/fields/geometry_field.rb', line 18

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

#radius(r = 1) ⇒ Object 



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# File 'lib/mongoid_geospatial/fields/geometry_field.rb', line 24

def radius r = 1
  [center, r]
end

#radius_sphere(r = 1, unit = :km) ⇒ Object 



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# File 'lib/mongoid_geospatial/fields/geometry_field.rb', line 28

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