geocoder_offline

Description:

geocoder offline

Offline Geocoder #
Dart library for super-fast offline reverse geocoding. Package use k-d tree for a search of the nearest location in a given file.
One when Geocoder is initialized, search for location is super-fast, about 4-5 milliseconds.
Data #
For using the reverse geocoding library you need to provide а file with data about places among you want to run reverse geocoding.
In examples you can see how to use а library with two example files:

GeoNames data file with all world cities with a population above 15 000
USGS data file with USA cities with a population above 5000.

Library allows you to use any other file who has at least data about name, latitude, and longitude of places you want to search.
Usage #
Import #
import 'package:geocoder_offline/geocoder_offline.dart';
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Initialization #
var geocoder = GeocodeData(
File('/example/NationalFedCodes_20191101.csv').readAsStringSync(), //input string
'FEATURE_NAME', // place name header
'STATE_ALPHA', // state/countery header
'PRIMARY_LATITUDE', // latitute header
'PRIMARY_LONGITUDE', // longitude header
fieldDelimiter: ',', // fields delimiter
eol: '\n');
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Reverse geocoding #
List<LocationResult> result = geocoder.search(41.881832, -87.623177);
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Features and bugs #
If you any problem using library or you have any new needs, please file feature requests and bugs at the issue tracker.