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geocoding.py
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109 lines (81 loc) · 3.49 KB
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#
# Copyright 2014 Google Inc. All rights reserved.
#
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
#
"""Performs requests to the Google Maps Geocoding API."""
from googlemaps import convert
def geocode(client, address=None, components=None, bounds=None, region=None,
language=None):
"""
Geocoding is the process of converting addresses
(like ``"1600 Amphitheatre Parkway, Mountain View, CA"``) into geographic
coordinates (like latitude 37.423021 and longitude -122.083739), which you
can use to place markers or position the map.
:param address: The address to geocode.
:type address: string
:param components: A component filter for which you wish to obtain a
geocode, for example: ``{'administrative_area': 'TX','country': 'US'}``
:type components: dict
:param bounds: The bounding box of the viewport within which to bias geocode
results more prominently.
:type bounds: string or dict with northeast and southwest keys.
:param region: The region code, specified as a ccTLD ("top-level domain")
two-character value.
:type region: string
:param language: The language in which to return results.
:type language: string
:rtype: list of geocoding results.
"""
params = {}
if address:
params["address"] = address
if components:
params["components"] = convert.components(components)
if bounds:
params["bounds"] = convert.bounds(bounds)
if region:
params["region"] = region
if language:
params["language"] = language
return client._request("/maps/api/geocode/json", params).get("results", [])
def reverse_geocode(client, latlng, result_type=None, location_type=None,
language=None):
"""
Reverse geocoding is the process of converting geographic coordinates into a
human-readable address.
:param latlng: The latitude/longitude value or place_id for which you wish
to obtain the closest, human-readable address.
:type latlng: string, dict, list, or tuple
:param result_type: One or more address types to restrict results to.
:type result_type: string or list of strings
:param location_type: One or more location types to restrict results to.
:type location_type: list of strings
:param language: The language in which to return results.
:type language: string
:rtype: list of reverse geocoding results.
"""
# Check if latlng param is a place_id string.
# place_id strings do not contain commas; latlng strings do.
if convert.is_string(latlng) and ',' not in latlng:
params = {"place_id": latlng}
else:
params = {"latlng": convert.latlng(latlng)}
if result_type:
params["result_type"] = convert.join_list("|", result_type)
if location_type:
params["location_type"] = convert.join_list("|", location_type)
if language:
params["language"] = language
return client._request("/maps/api/geocode/json", params).get("results", [])