Top "Gis" questions

A Geographic Information System (GIS) captures, stores, analyzes, manages, and presents data that are linked to location(s). The GIS Stack Exchange should be considered for questions with this tag.

Fastest Way to Find Distance Between Two Lat/Long Points

I currently have just under a million locations in a mysql database all with longitude and latitude information. I am …

mysql location gis
Best way to overlay an ESRI shapefile on google maps?

What is the best way to overlay a shapefile in Google Maps? After some reading suggests that, converting shapefile into …

google-maps google-maps-api-3 gis kml shapefile
Get lat/long given current point, distance and bearing

Given an existing point in lat/long, distance in (in KM) and bearing (in degrees converted to radians), I would …

python gis distance latitude-longitude
Google maps: place number in marker?

How can I display a number in the marker on a google map? I want to do server side clustering …

javascript google-maps gis google-maps-markers
Loading a local .kml file using google maps?

I created a hello world program to load a local kml file (borrowed from google's docs): var ctaLayer = new google.…

gis google-maps-api-3 kml kmz
How to Convert data frame to spatial coordinates

I have been working on earthquake data that has lat long values, and I want to convert those lat long …

r gis geospatial
convert .dat files to either .dta, .shp, .bdf, or .csv

I have downloaded spatial data from the USGS website that comes in a .dat format, which I can't read in …

gis dta
Preferred order of writing latitude & longitude tuples in GIS services

When dealing with GIS source code you often need to write latitude and longitude coordinate tuples. E.g. in Google …

google-maps gis latitude-longitude
Convert a shapefile (.shp) to xml/json

I'm working with a shapefile (.shp, .dbf, etc) and would like to convert it to xml. I'm on a mac, …

xml gis file-format
Get altitude by longitude and latitude in Android

Is there a quick and efficient way to get altitude (elevation) by longitude and latitude on the Android platform?

android geolocation gis android-mapview