Summary
In this chapter, we implemented a sophisticated web-based application that displays shorelines, towns, and lakes within a given radius of a starting point. This application was the impetus for exploring a number of important concepts within geospatial application development, including storing large amounts of spatial information in a database, performing distance-based queries against spatial data, and using Mapnik to display maps on a web page. In the next chapter, we will examine the DISTAL application in more detail and look at ways in which we can improve the usability and performance of this application.
