python-qgis

This is a code experiment on using Python and QGIS for geospatial visualizations on the Visual Meteor Database (VMDB).

The VMDB contains about 3x10^6 meteors obtained by standarized observing methods collected during the last 25 years. The actual DB is stored in dBase or ASCII format.

http://www.imo.net/data/visual

1) Installation (Linux)

$ sudo apt-get install gqis

2) Downloading the data

$ wget http://www.imo.net/files/data/vmdb/MAGN_11.TXT
$ wget http://www.imo.net/files/data/vmdb/vmdbsite.txt

3) Python dependencies

$ sudo pip install nominatim geopy python-geoip python-geoip-geolite2 ping

Reversing address based on lat + lon coordinates

geolocator = Nominatim()
location = geolocator.reverse("52.509669, 13.376294")

Geoip

from geoip import geolite2
locate = geolite2.lookup('127.0.0.1')
if locate is not None:
  print match.country

Computing network latency to the nominatim OpenStreetMap API

import ping
delay = ping.do_one('nominatim.openstreetmap.org', 500, 64)

Reference

Nominatim Search service Developers Guide http://open.mapquestapi.com/nominatim/

tomasperezv / python-qgis