The process of converting coordinates (latitude, longitude) into human readable names of locations, such as an address (perhaps partial) or other brief descriptive text.

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22
votes
6answers
9k views

What reliable GeoCoding service would you recommend me?

I'm looking for a web service providing a full address based on coordinates (and reverse). I'm ready to pay for that service. I don't want to use Google's API.
18
votes
1answer
4k views

Comparison of geocoding solutions (such as Gisgraphy & PostGIS 2.0) [closed]

As I am sure many of you are aware, PostGIS has finally released Version 2.0 and included within this version they have also built a geocoder (see: http://postgis.net/docs/Extras.html). Although I ...
11
votes
2answers
5k views

What is the best way to do reverse geocoding with PostGIS?

Is there a way to do reverse geocoding with PostGIS? There's a lot of information on the Web but I found it very confusing... I have imported osm data into my own Postgres with PostGIS database. Now ...
10
votes
1answer
3k views

Reverse Geocoding Libraries

I'm new to GIS and mapping services. Can anyone tell me what my options are for reverse-geocoding libraries, other than nominatim? I'm most likely going to be working with OpenStreetMap data. So ...
9
votes
2answers
4k views

How to reverse geocode with ArcMap?

What steps to I have to take in ArcMap (ArcEditor) to input a lat / long and return nearest address? I found the Reverse Geocode tool but I can't figure out what to put in the "Input Features" and ...
9
votes
1answer
9k views

Looking for ZIP+4 boundaries

I know where to find 5-digit ZIP code boundaries. Do 9-digit ZIP code boundaries exist? If so, where might I find them?
9
votes
4answers
13k views

Getting polygons of all countries and ISO-3166-2 subdivisons

In order to do reverse geocoding lookups to find a country (as ISO-3166-1) and the subdivision (as ISO-3166-2) for given coordinates I am looking for a way to get all polygons of all countries and ...
7
votes
1answer
1k views

SQL Query to Reverse Geocoding in PostGIS

I try to do Reverse Geocode from my shapefile on the database. I'd already try with Spatialite and PostGIS to put shapefile (.shp) into it. But I'm still can't delivered my objection about reverse ...
6
votes
2answers
599 views

Comparing TIGERLine 2006 (and prior) With New Shapefile Format

I have created a geo database using MySQL and the TIGERLine data files available from the US Census. This is actually an MSSQL database I created that I've transfered to MySQL. Everything works ...
5
votes
3answers
1k views

Is there software that will do reverse geocoding to convert photographs' GPS locations to addresses?

I am using a standalone GPS tracker that produces GPX files and then clock-sync photos with it using Microsoft Pro Photo Tools. This works pretty well. But I was also using a feature of Pro Photo ...
4
votes
4answers
8k views

API to reverse geocode latitude, longitude to census tract?

I have a bunch of latitude,longitude coordinates (mostly city/town centroids) in the United States for which I'd like to find the containing census tract. For instance, input => nn.nnn, -nn.nnn ...
4
votes
1answer
943 views

Address or reverse geocode a point shapefile

I have a shape file that contains points. I want to do a reverse geocode and give these points an address. Can someone please help me?
4
votes
2answers
616 views

Is there a service that does geocoding with advanced language support?

I'm building an address disambiguation page and I'm interested in having geocoding results returned in the local language of the country the result's in. For example, if I make a reverse geocoding ...
4
votes
1answer
280 views

Given a known batch of mobile-obtained gps data with timestamps, what algorithms can be used to clean it?

I'm working on the backend for an iOS/Android app that collects locations every hour and syncs with the server every three hours. The mobile apps themselves are not under my control and so I can't ...
3
votes
2answers
581 views

What is exactly reverse geocoding

I am the developper of gisgraphy (and in few weeks), the new version will be roof top. So i plan to update my reverse geocoding service to house numbers (it was only for streets), I thought it was ...
3
votes
3answers
5k views

Free application or web service for reverse geocoding

I'm looking for a fast and free web service or local application (this it would be better, a local service with database of street, numbers, city, etc.) for reverse geocoding. I could use google but ...
3
votes
2answers
121 views

Find parent place using nominatim

I have a locally hosted Nominatim service. I'm trying to reverse geocode a lat, lon to a place hierarchy. E.g. ...
3
votes
3answers
3k views

Techniques for offline reverse geocoding on a mobile device?

I am working on a mobile mapping application (currently iOS, eventually Android) - and I am struggling with how to best support reverse geocoding from lat/long to Country/State without using an online ...
3
votes
2answers
32 views

Inside/Outside Local Jurisdictions

Does anyone know of a software or service that can define whether a location is inside or outside of city and county jurisdictions? Our company is getting hit with huge tax audits because we did not ...
3
votes
1answer
675 views

How to get around the 10-character limit when converting from kml to shp with ogr2ogr

I'm trying to create custom .shp files by drawing polygons on a new layer in Google Maps Engine, exporting that .kml file, and then converting that file to a .shp file with ogr2ogr. If I run a ...
3
votes
1answer
43 views

Addressing based on centrelines, or assigned at parcel creation?

I'm still pretty green when it comes to GIS and using ArcGIS products, so hopefully this question doesn't sound too dumb. I am just wondering what the best way to go about assigning addresses to ...
3
votes
2answers
309 views

Self hosted, highly accurate, address geocoding?

I'm working on an app that requires Rooftop level accuracy coupled with very high volumes. The client would prefer to self-host the solution which might not be a bad idea considering our volume and ...
3
votes
2answers
162 views

Reverse geocoding using OSM data imported into PostGIS

I'm trying to reverse geocode some points using an OSM import into PostGIS. I imported the OSM data (for Denmark so all addresses should be avaialable) into PostGIS using osm2pgsql enabling ...
3
votes
2answers
3k views

Offline geocoding and reverse geocoding for android

I'm developing an android application that cannot use internet and need to deal with maps and positioning. Download OpenStreetMaps data seens to be a good solution to access map information offline. ...
3
votes
2answers
824 views

Table structure for a reverse geocoding database

I should start by saying that I do not have much experience with GIS so this question may be foolish. What I do have is a database for performing a lookup from a set of coordinates to find the ...
3
votes
0answers
75 views

How to geocode a building with different entrances

I am working on a routing map for a university campus. the routes are modeled and network analyst works fine. The problem: Many of these buildings have several entrances. Is there a way to geocode ...
2
votes
3answers
292 views

Given (lon,lat), how can I quickly retrieve the containing administrative region?

Given a coordinate (lon,lat), I'd like to retrieve the containing administrative region (state/province level) for an offline mobile application. The method employed needs to be fast/efficient. ...
2
votes
1answer
939 views

Reverse Geocoding - calculate every time, or store result in database?

Several questions, such as this one, discuss whether to store only lat/long in the database & calculate the street address every time it is needed, but they seem to miss a few points & seem to ...
2
votes
1answer
2k views

Reverse geocoding to get city, state, country data separately?

I have longitude and latitude data. I need to reverse geocode to get city, state, country data separately. I have checked google service. Google provides complete address to a micro level. ...
2
votes
2answers
228 views

Find country from GPS coordinates, offline using python

I'm aware that there are several similar questions already but I have been searching for days and not been able to solve my problem: All solutions I've found require GDAL, which I have not been able ...
2
votes
2answers
1k views

What Reliable Reverse Geocoding API Can I Use?

I am working in a company where our team requirement is to do reverse geocoding lookups. Below is our requirement. To give you more background, the 3 geolocation-related needs I have are as follows: ...
2
votes
2answers
1k views

Geopy Error with Reverse Geocoding

I am using Geopy. I get following error for the code. I have using the same code as on https://code.google.com/p/geopy/wiki/ReverseGeocoding from geopy import geocoders g = geocoders.GeoNames() ...
2
votes
1answer
444 views

Enrich a dataset of POIs with OpenStreetMap

I have a list of POIs, some with a full description and some with only a few data entries, like the following: 6.9441000 50.9242000 [50677] (Ital) Casa di Biase [Köln] 6.9373600 50.9291800 ...
2
votes
2answers
552 views

How is Mapquest Nominatim Service's “routeWidth” search param implemented?

I was looking at MapQuest's Nominatim service, and it seems like they have a non-standard search parameter (doesn't seem to exist in standard Nominatim's list of params) that is the routeWidth. Any ...
2
votes
0answers
293 views

Postgres OSM planet reverse geocoding

i'm building function for reverse geocoding in Postgres using PostGIS function's. For now i was able to clean up all the data that was useless to me(rivers, buildings,etc.). I got 3 ...
2
votes
0answers
644 views

Nominatim: Always getting “unable to geocode”

I've installed Nominatim and everything seems to work fine, but whenever I try to use the reverse geocoding API, all I get is "unable to geocode". Strangely, the search function works well and returns ...
2
votes
1answer
169 views

I would like to reverse Geocode from the infowindow

I am just learning the ropes with CartoDB and am curious to know if this is possible. I have a CartoDB map with points and I am entering data into this map through the CartoDB editor. I would like ...
1
vote
1answer
981 views

How to identify township range and section from longitude and latitude

I have several hundred coordinates in an Excel file. I would like to identify the township range and section they are located--what is the easiest way to do this? I have you QGIS and basic GIS skills ...
1
vote
3answers
2k views

Android GIS - Reverse Geocode using Shapefile (.shp)

I want to develop an Android application. I'm still a newbie here. What I want is to develop my app just like a GIS that can implement reverse geocoding. So I can put in lat / lon coordinates and ...
1
vote
1answer
897 views

How to resolve the postgis “type geometry does not exist” issue on installing tiger_geocode extension?

I have installed postgis extension in my db. I have few columns associated with its type in few tables and now I would like to use reverse geocode functionality in my app. Hence I tried to create ...
1
vote
1answer
353 views

Is it possible to create a geocoding and reverse geocoding service based on the shapfiles data

We have some shapfile data and we have export them to the mysql table. The table have these columns: id name description fulladdress code lng lat ... Now I wonder if it is possible to create a ...
1
vote
1answer
812 views

Reverse Geocode for Android

I am new to arcgis for android. I practice using Geocode and reverse geocode. I use sample Place Search from Esri, but i also want to add Reverse Geocode in it so that after a user put in the address ...
1
vote
1answer
673 views

Determine if GPS coordinate in Canada

I have GPS tracking solution and most my customers in US. My reverse-geocoding solution pretty basic: Table with US ZIP database Procedure in SQL Server where I search for city/state closest to ...
1
vote
1answer
45 views

Reverse geocoding with QGIS

I've downloaded us region boundaries from US census bureau, which is a .zip file. I can open to view the file with QGis as follows (4 regions + Alaska): Now I have a dataset containing a lot of data ...
1
vote
1answer
432 views

Nominatim reverse geocode gets blocked - how do i send a valid UserAgent or Referer?

I have a php page that requests reverse geocoding data from Nominatim OSM server. It was working for over a year. Recently started blocking my requests with the following message: You have been ...
1
vote
1answer
56 views

Get addresses from TIGER geocoder in polygon

I have the TIGER geocoder installed, setup and working in POSTGIS. I also see the reverse geocoder lets me get an address from a point on the map. But now I want to provide a polygon and get all the ...
1
vote
2answers
708 views

Get road type by coordinates

I need to do the following task: to retrieve the road type (highway, bridge, track, pedestrian and others) by coordinates, query a remote service (via HTTP). I'm looking at the different major ...
1
vote
1answer
135 views

Reverse Geocoding: cannot connect to World Geocode Service

I should probably go to ESRI for help with this question, but I was hoping that someone else might have had the same problem and solved it. I'm part of a larger university and we get ArcMap as a site ...
1
vote
2answers
491 views

Possible for there to be same street, city, and country in two locations

I am working on a project, and need to know if it is at all likely in most of the world that there can be two streets in a city with the same name, in the same country, but in two different locations. ...
1
vote
1answer
72 views

ArcGIS Geocoding: Error trying to process this table

I'm using the new what3words geocoding service for ArcGIS Desktop (10.0 SP 5) and keep getting the following error message: "there was an error trying to process this table" Checked through the ...