https://github.com/mvexel/osmcameras_gearth

View CCTV camera locations from OpenStreetMap in Google Earth
https://github.com/mvexel/osmcameras_gearth

Last synced: 24 days ago
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View CCTV camera locations from OpenStreetMap in Google Earth

• Host: GitHub
• URL: https://github.com/mvexel/osmcameras_gearth
• Owner: mvexel
• Created: 2011-03-19T10:35:41.000Z (almost 14 years ago)
• Default Branch: master
• Last Pushed: 2011-04-08T15:42:49.000Z (over 13 years ago)
• Last Synced: 2024-10-21T23:08:33.408Z (2 months ago)
• Language: Python
• Homepage:
• Size: 97.7 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
cctv.py

=======

This is a python script that reads all CCTV cameras from a local OpenStreetMap PostGIS database and spits them out as KML. It takes the standard BBOX=minlon,minlat,maxlon,maxlat as querystring so you can just plug it into Google Earth as a network link.

installation

------------

You will need a local database with all CCTV cameras from OSM in the osmosis DB schema. There's a step-by-step on how to accomplish that  [here](https://docs.google.com/document/pub?id=1paaYsOakgJEYP380R70s4SGYq8ME3ASl-mweVi1DlQ4).

You will also need a few python modules:

*   Shapely

*   web.py

*   psycopg2

Finally, you will need a web server with WSGI support. Instructions for Apache are [here](http://webpy.org/cookbook/mod_wsgi-apache). I use Ubuntu so I did it like [this](http://ubuntuforums.org/showthread.php?t=833766). You can also adapt the script to work with another python interface. The web.py documentation will tell you how.

Add something like this to your Apache config:

    WSGIScriptAlias /cctv /home/mvexel/www/cctv/cctv.py/

    Alias /cctv/static /home/mvexel/www/cctv/static/

    AddType text/html .py

    

        Order deny,allow

        Allow from all 

    

Put cctv.py somewhere in your web tree and navigate to yourserver/cctv/?BBOX=4.9,52.35,4.95,52.40. The result should be a KML file with some cameras - if the example bounding box is in your database.

usage

-----

Ad a 'Network Link' in Google Earth pointing to http://yourserver/pathtocctv/

adapting for other tags

-----------------------

You can change the script easily to extract other features from the database. The only change necessary would be to adapt the first WHERE clause (man_made = 'surveillance') to a different key/value pair, and the name / description in the Placemark output. You would of course need to make sure that the features you want are in your local database as well. This requires adapting the how-to for the database setup to your particular needs.