Top "Geospatial" questions

pertaining to the geographic location and characteristics of natural or constructed features and boundaries on, above, or below the earth's surface; esp.

shapefile and matplotlib: plot polygon collection of shapefile coordinates

I'm trying to plot filled polygons of countries on the world map with matplotlib in python. I've got a shapefile …

python matplotlib polygon geospatial shapefile
Construct DbGeography point from Latitude and Longitude doubles?

I want to construct a DbGeography point from latitude and longitude doubles. I know I can convert my doubles to …

entity-framework geospatial
Buffer (geo)spatial points in R with gbuffer

I'm trying to buffer the points in my dataset with a radius of 100km. I'm using the function gBuffer from …

r gis geospatial
Distance between 2 POINTs in Postgis in srid 4326 in metres

This is probably a simple question, but I'm not very good at PostGIS and don't fully grok all of this. …

postgresql geospatial postgis gis
Geospatial coordinates and distance in kilometers

This is a followup to this question. I seem to be stuck on this. Basically, I need to be able …

geolocation geospatial distance geography
Pandas Latitude-Longitude to distance between successive rows

I have the following in a Pandas DataFrame in Python 2.7: Ser_Numb LAT LONG 1 74.166061 30.512811 2 72.249672 33.427724 3 67.499828 37.937264 4 84.253715 69.328767 5 72.104828 33.823462 6 63.989462 51.918173 7 80.209112 33.530778 8 68.954132 35.981256 9 83.378214 40.619652 10 68.778571 6.607066 I am looking to calculate the …

python pandas numpy geospatial haversine
Determining the distance between two ZIP codes (alternatives to mapdist)

I want to calculate the distance between approx. 100,000 different ZIP codes. I know about the mapdist function in the ggmap …

r google-maps-api-3 geospatial spatial ggmap
Converting lat/long to JTS?

I am trying to integrate hibernate spatial with JPA for Geo searches. I have been referencing the tutorial on the …

java hibernate jpa geolocation geospatial
Need a standalone Java library for performing spatial calculations on lat/lon data

I'm looking for a Java library that is capable of performing spatial calculations on sets of lat/lon data. Here …

java geospatial polygon spatial great-circle
How to use Redis and geo proximity search to find two users at the same location?

I want to implement a service that, given users' geo coordinates, can detect whether two users are at the very …

redis geospatial geo geohashing