On Nodes and Ways

OSM Data Structure   This post presents a description of the OpenStreetMap (OSM) data structure and some implications for users. References are mostly from that organization’s wiki. What I intend to provide is:   A short, precise definition of the data...

This Data is Not for Sale

As a small business bringing new untested products to market, I have to be mindful of a capped budget and the need to minimize expenses. Therefore whenever I can acquire something for free I take it. In this way I’ve acquired software tools, templates, advertising and...

The World is not Flat

Introduction to Datums and Projections I wrote this post because there seems to be a lot of confusion among casual users of GIS and other mapping applications around projections. The three take-away lessons I would like to share are: Projections are a necessary...