Module: LooseChange::Spatial

Included in:
Base
Defined in:
lib/loose_change/spatial.rb

Constant Summary collapse

GEOMETRIES =

To define a spatial geometry property on a CouchDB document, use the geo_* methods as following:

class Bar < LooseChange::Base
  geo_point :location
  geo_multipoint :catchment_area
end

bar = Bar.new(:location => [41.3913, 73.9813])

For information on geometries see the GeoJSON documentation at geojson.org/geojson-spec.html

%w(Point MultiPoint)

Instance Method Summary collapse

Instance Method Details

#by_bounding_box(name, lat1, lng1, lat2, lng2) ⇒ Object

Locate documents with a bounding box (defined as two coordinate pairs, from lower-left to upper-right). The :name parameter identifies which location property to search.

Bar.by_bounding_box(:location, 40, 72, 43, 74)



40
41
42
43
44
 
# File 'lib/loose_change/spatial.rb', line 40

def by_bounding_box(name, lat1, lng1, lat2, lng2)
  JSON.parse(RestClient.get("#{ design_document_uri(database, model_name) }/_spatial/#{name}?bbox=#{ [lat1,lng1,lat2,lng2].join(',') }", default_headers))['rows'].map do |row|
    find(row['id'])
  end
end