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.

How can I get the installed GDAL/OGR version from python?

How can I get the installed GDAL/OGR version from python? I aware of the gdal-config program and are currently …

python gis geospatial gdal ogr
Spatial data with mongodb or cassandra

I am considering a Proof of concept for handling large volumes of data like > 10 G which requires atleast 200+ writes …

mongodb cassandra gis geohashing
Finding coordinates of a point in OpenLayers

How can one get the coordinates of a particular point on a map in OpenLayers?

gis openlayers
Matplotlib imshow offset to match axis?

I'm plotting a bunch of UTM coordinates using a matplotlib.pyplot.scatter. I also have a background air photo that …

python numpy matplotlib gis coordinate-systems
How can I display OSM tiles using Python?

I'm in the process of generating tiles with generate_tiles.py and I'd like to write a Python app to …

python gis openstreetmap
Simplified (or smooth) polygons that contain the original detailed polygon

I have a detailed 2D polygon (representing a geographic area) that is defined by a very large set of vertices. …

algorithm geometry gis polygon computational-geometry
Get element of a responseText JSON of an OpenLayers GET request

I am trying to use OpenLayers.Request.GET to load data from url in JSON format. Here's the request (note: …

javascript json gis openlayers responsetext
Query points within a given radius in MySQL

I have created the following MySQL table to store latitude/longitude coordinates along with a name for each point: CREATE …

mysql database gis spatial mysql-spatial
Correct way of finding distance between two coordinates using spatial function in MySql

I am trying to calculate distance between two locations using spatial functions in both Mysql and PostgresSQL. I have taken …

mysql gis spatial
With Google Maps API V3, determine if a marker is inside a KML Layer boundary

Is there a way to determine if a marker has entered an area covered by a KmlLayer? My .kml is …

google-maps-api-3 gis kml