Class: OverpassAPI

Inherits:
Object
  • Object
show all
Defined in:
lib/overpass_api_ruby.rb

Constant Summary collapse

VERSION = 
'0.1.1'
DEFAULT_ENDPOINT = 
'http://overpass-api.de/api/interpreter?data='

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ OverpassAPI

Returns a new instance of OverpassAPI.



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# File 'lib/overpass_api_ruby.rb', line 11

def initialize(args={})
  bbox = args[:bbox]
  bbox(bbox[:s],bbox[:n],bbox[:w],bbox[:e]) if bbox

  cache_expiration_time = args[:cache_expiration_time] || 7200
  @cache = Diskcached.new('/tmp/cache',cache_expiration_time,true)

  @endpoint = args[:endpoint] || DEFAULT_ENDPOINT
  @json = args[:json] ? "output='json'" : ''
  @timeout = args[:timeout] ? "timeout='#{args[:timeout]}'" : ''
  @element_limit = args[:element_limit] ? "element-limit='#{args[:element_limit]}'" : ''
end

Instance Method Details

#bbox(s, n, w, e) ⇒ Object 



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# File 'lib/overpass_api_ruby.rb', line 24

def bbox(s,n,w,e)
  @bbox = "bbox='#{s},#{w},#{n},#{e}'"
end

#query(query) ⇒ Object 



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# File 'lib/overpass_api_ruby.rb', line 28

def query(query)
  return unless query
  perform "<osm-script #{@bbox} #{@timeout} #{@element_limit} #{@json}>" <<
          "#{query}<print/></osm-script>"
end

#raw_query(query) ⇒ Object 



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# File 'lib/overpass_api_ruby.rb', line 34

def raw_query(query)
  return unless query
  perform query
end