class Nominatim(GeocodeService):
"""
Class to geocode using `Nominatim services hosted
by MapQuest <http://open.mapquestapi.com/nominatim/>`_.
"""
_wkid = 4326
_endpoint = 'http://open.mapquestapi.com/nominatim/v1/search'
DEFAULT_ACCEPTED_ENTITIES = [
'building.', 'historic.castle', 'leisure.ice_rink',
'leisure.miniature_golf', 'leisure.sports_centre', 'lesiure.stadium',
'leisure.track', 'lesiure.water_park', 'man_made.lighthouse',
'man_made.works', 'military.barracks', 'military.bunker', 'office.',
'place.house', 'amenity.', 'power.generator', 'railway.station',
'shop.', 'tourism.'
]
DEFAULT_REJECTED_ENTITIES = [
'amenity.drinking_water', 'amentity.bicycle_parking',
'amentity.ev_charging', 'amentity.grit_bin', 'amentity.atm',
'amentity.hunting_stand', 'amentity.post_box'
]
DEFAULT_PREPROCESSORS = [ReplaceRangeWithNumber()
] # 766-68 Any St. -> 766 Any St.
"""Preprocessors to use with this geocoder service, in order of desired execution."""
DEFAULT_POSTPROCESSORS = [
AttrFilter(DEFAULT_ACCEPTED_ENTITIES, 'entity', exact_match=False),
AttrExclude(DEFAULT_REJECTED_ENTITIES, 'entity')
]
"""Postprocessors to use with this geocoder service, in order of desired execution."""
def __init__(self, preprocessors=None, postprocessors=None, settings=None):
preprocessors = Nominatim.DEFAULT_PREPROCESSORS if preprocessors is None else preprocessors
postprocessors = Nominatim.DEFAULT_POSTPROCESSORS if postprocessors is None else postprocessors
GeocodeService.__init__(self, preprocessors, postprocessors, settings)
def _geocode(self, pq):
query = {
'q': pq.query,
'countrycodes': pq.country, # only takes ISO-2
'format': 'json'
}
if pq.viewbox is not None:
query = dict(
query, **{
'viewbox': pq.viewbox.to_mapquest_str(),
'bounded': pq.bounded
})
response_obj = self._get_json_obj(self._endpoint, query)
returned_candidates = [] # this will be the list returned
for r in response_obj:
c = Candidate()
c.locator = 'parcel' # we don't have one but this is the closest match
c.entity = '%s.%s' % (r['class'], r['type']) # ex.: "place.house"
c.match_addr = r[
'display_name'] # ex. "Wolf Building, 340, N 12th St, Philadelphia, Philadelphia County, Pennsylvania, 19107, United States of America" #TODO: shorten w/ pieces
c.x = float(r['lon']) # long, ex. -122.13 # cast to float in 1.3.4
c.y = float(r['lat']) # lat, ex. 47.64 # cast to float in 1.3.4
c.wkid = self._wkid
c.geoservice = self.__class__.__name__
returned_candidates.append(c)
return returned_candidates