Flowpy

(released 19 October 2009) Flowpy takes an interaction matrix and a set of corresponding coordinate pairs, calculates two-way, net, and gross flow, and yields a shapefile or KML of the results. The code requires Python 2.6, GDAL, and Python/GDAL bindings .

The latest version of Flowpy and basic instructions can be downloaded here.

An instructional screencast on using Flowpy can be found at http://vimeo.com/9264988.

Flow Data Model Tools for ArcGIS 9.x (FDMT)

(released 01 July 2008) FDMT consist of several Visual Basic for Applications (VBA) macros designed to work in ArcGIS 9 ArcMap, with an ArcView, ArcEditor, or ArcInfo license. They were created to perform two functions: integrate the functionality of Waldo Tobler's FlowMapper into ArcGIS, and allow import and export of data into the Flow Data Model. For information on FlowMapper, visit the FlowMapper website. With the launch of Flowpy, FDMT are no longer supported. For the latest version of the tools, visit the FDMT project website.

Coding Circle

Products and progress from the latest coding circle can be obtained at the project wiki.