Version 24 of GIS

Updated 2013-01-15 14:59:29 by pooryorick

An acronym for Geographic information system

See Also

a spatial extension to SQLite
an open-source GIS application that relies on Tk for its GUI.
Geographic mapping the Tcl way
Tclworld Database
EKB a list of GIS applications that use Tcl/Tk
DL a service that converts addresses to long/lat - a necessity for using Google's map API.
Tcl interface to the TIGER dataset
geographical database covering all countries and containing over eight million placenames, free of charge
Raster operations on the canvas
AM bears relation to GIS....
dead link on 2013-01-15


A GSoC2009 project is underway to improve Tcl's support for reading raster and vector geospatial data formats, as well as rendering them in a Tk canvas widget. Project's detailed description and status updates can be found at: The tcl-map GSoC2009 project. The source code is hosted at:


CL has lots of toy maps (of US states, Norway, the Volga River, ...) written as Tcl programs, with "live" canvases, ... He's trying to figure out how to package them so others can see them. A hint of what's possible appears in "Open Cartography" [L1 ].

Zarutian is thinking about scanning and vectorizing several free maps of Iceland's Captialzone (?? Capital city/zone ??).