Method: Geokit::ActsAsMappable::ClassMethods#distance_sql

Defined in:
lib/geokit-rails3/acts_as_mappable.rb,
lib/geokit-rails3/acts_as_mappable.old.rb

#distance_sql(origin, units = default_units, formula = default_formula) ⇒ Object

Returns the distance calculation to be used as a display column or a condition. This is provide for anyone wanting access to the raw SQL.



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# File 'lib/geokit-rails3/acts_as_mappable.rb', line 149

def distance_sql(origin, units=default_units, formula=default_formula)
  case formula
  when :sphere
    sql = sphere_distance_sql(origin, units)
  when :flat
    sql = flat_distance_sql(origin, units)
  end
  sql
end