May 2016
Beginner to intermediate
446 pages
10h 7m
English
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Chapter 8. Working with Spatial Data
In this chapter, we will apply and build on the knowledge that we gained in previous chapters to create a sophisticated web application called DISTAL (Distance-based Identification of Shorelines, Towns, and Lakes). In the process of building this application, we will learn:
- How to work with substantial amounts of geospatial data stored in a PostGIS database
- How to perform complex spatial database queries
- How to make accurate distance-based spatial queries
- How to integrate Mapnik into a web application to display results on a map
About DISTAL
The DISTAL application will have the following basic workflow:
- The user starts by selecting the country they wish to work with:
- A simple map of the country is then displayed:
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