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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2
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0answers
9 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
21 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
0answers
35 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 ...
1
vote
1answer
17 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
0answers
30 views

If we use Nominatim just for reverse geocoding, is it possible to delete some tables from the PostGIS database?

I've installed Nominatim on a server following these instructions. I've also imported the luxembourg osm.pbf file data, so reverse geocoding queries successfully work in the luxembourg area. What I ...
0
votes
1answer
51 views

How to find a location is inside a country?

Given a Country Code and a Lat Lng pair, I want to find whether it is inside that country or not? What is the way to do it? Is there an algorithmic way to do this? I can accept certain amount of ...
3
votes
2answers
21 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 ...
1
vote
0answers
54 views

Get house addresses within polygon?

Is there a data source/service for the USA where, if we provide a polygon, it provides the addresses of all houses contained within it? I just want to know if this type of functionality or similar to ...
2
votes
0answers
65 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 ...
0
votes
1answer
263 views

Reverse geocoding Nominatim results

I need to obtain street intersections from reverse geocoded lat/long, where there is no house number information. I have a tile server and Nominatim running in Ubuntu 12.04 virtualbox. I followed ...
2
votes
1answer
541 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 ...
0
votes
2answers
124 views

Can I use Map Quest/ Open Street map to get the local names?

I am using the reverse geocoding service provided by Map Quest. For a sample coordinate of N 53.27, E 8.123333, I receive the state of "Lower Saxony". According to Wikipedia, and a user of my service, ...
1
vote
1answer
154 views

Web API for reverse geocoding geographic features

Is there a free web API that can reverse geocode geographic feature names? I'm currently using the Google API, which will return political and street address info, but I would like to return the names ...
1
vote
1answer
240 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 ...
3
votes
2answers
394 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 ...
0
votes
2answers
127 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
0answers
122 views

Get list of cities within a bounding box

I need to find a web service that allows me to reverse-geocode but with a bounding box. In other words, I want to give the coordinates for a bounding box of latitude and longitude, and be provided ...
0
votes
0answers
246 views

extract country code from lat long submission - offline

1) need to extract the country code 3166 from a lat long submission (example http://ws.geonames.org/countryCode?lat=-16.03&lng=167.2 2) want to localize that data set of country coordinates if ...
1
vote
1answer
470 views

How to get accurate coordinates from google geocoding services?

Can I write my address in a better way to increase the odds of getting better coordinates from google geocoding services. If someone has insights about how GIS parse addresses or experinces with ...
0
votes
1answer
1k views

Local geolocation to FIPS county using Latitude and Longitude

I millions of lat,long pairs and I want to convert to FIPS county codes that match with the US census data. In the past I used the census block api but that is too slow for the amount of numbers that ...
1
vote
0answers
124 views

How to use ArcGIS to reverse geocode and get road segment number?

I am now in a project which need to make reverse geocoding , namely ,given the latitude and longitude(assumed that the location is in a street), I want to get the road segment it is located in. What I ...
1
vote
0answers
284 views

Google map showing Overlapping Boundaries [closed]

I am working in process of building an online Geocoding and Reverse Geocoding Service .For That I have been preparing a database by creating a centroid point in a shapefile and sending the point to ...
0
votes
1answer
233 views

How can I cache reverse-geocode results?

I'm implementing an Android application that needs to do some reverse-geocoding to resolve a geocoordinate to a city. What is the best way to cache this information on the smartphone so that I don't ...
3
votes
1answer
171 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 ...
1
vote
1answer
231 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 ...
0
votes
1answer
350 views

ArcGIS Android Reverse geocoding, Cannot perform query. Invalid query parameters

I'm trying to write reverse geocoding. And i copied code given here... Here is my code sample.. public class MagProActivity extends Activity { private MapView mMapView; ...
0
votes
1answer
169 views

how to build a reverse geocoding service [duplicate]

We want to build a web service like google reverse geocoding. Of course, we will only provide the service for only a specified region. Then we want to know things we need to implement it. By now, ...
1
vote
1answer
519 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 ...
0
votes
1answer
422 views

Reverse geocoding polygon co-ordinates?

I have a large dataset of polygons for property sections that I need to reverse geocode. It was recommended that I use a GIS like Quantam to do this however from my research I am not 100% sure if a ...
1
vote
1answer
243 views

add a Custom search to an openlayers map

I have looked at this thread: add location search to openlayers map But it is not the result that I am trying to achieve. Probably best if i show you: ...
3
votes
3answers
3k 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 ...
2
votes
0answers
162 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 ...
2
votes
2answers
487 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() ...
1
vote
1answer
996 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. ...
1
vote
0answers
73 views

Stopping the automatic snap to locator in Arcgis 10.0 reverse geocode

I built a network application using arcgis 10.0 sdk for wpf. The application uses a locator of highway milestones to reverse geocode (and identify) the "flag" the user clicked on the map. My Problem ...
2
votes
1answer
689 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
3answers
248 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. ...
4
votes
1answer
231 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 ...
4
votes
1answer
594 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?
1
vote
1answer
422 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 ...
5
votes
1answer
850 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 ...
2
votes
1answer
361 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 ...
1
vote
3answers
1k 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 ...
18
votes
1answer
2k views

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

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 ...
5
votes
4answers
6k 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 ...
3
votes
4answers
4k views

Free 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 ...
5
votes
3answers
867 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 ...
8
votes
2answers
3k 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 ...
8
votes
1answer
4k 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?
6
votes
2answers
525 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 ...