Summary Post GIS in Action, Second Edition teaches readers of all levels to write spatial queries that solve real-world problems. It first gives you a background in vector-, raster-, and topology-based GIS and then quickly moves into analyzing, viewing, and mapping data. This second edition covers Post GIS 2.0 and 2.1 series, Postgre SQL 9.1, 9.2, and 9.3 features, and shows you how to integrate with other GIS tools. Foreword by Paul Ramsey. Purchase of the print book includes a free e Book in PDF, Kindle, and e Pub formats from Manning Publications. About the Book Processing data tied to location and topology requires specialized know-how. Post GIS is a free spatial database extender for Postgre SQL, every bit as good as proprietary software. With it, you can easily create location-aware queries in just a few lines of SQL code and build the back end for a mapping, raster analysis, or routing application with minimal effort. Post GIS in Action, Second Edition teaches you to solve real-world geodata problems. It first gives you a background in vector-, raster-, and topology-based GIS and then quickly moves into analyzing, viewing, and mapping data. You’ll learn how to optimize queries for maximum speed, simplify geometries for greater efficiency, and create custom functions for your own applications. You’ll also learn how to apply your existing GIS knowledge to Post GIS and integrate with other GIS tools. Familiarity with relational database and GIS concepts is helpful but not required. What’s Inside An introduction to spatial databases Geometry, geography, raster, and topology spatial types, functions, and queries Applying Post GIS to real-world problems Extending Post GIS to web and desktop applications Updated for Post GIS 2.x and Postgre SQL 9.x About the Authors Regina Obe and Leo Hsu are database consultants and authors. Regina is a member of the Post GIS core development team and the Project Steering Committee. Table of Contents What is a spatial database? Spatial data types Spatial reference system considerations Working with real data Using Post GIS on the desktop Geometry and geography functions Raster functions Post GIS TIGER geocoder Geometry relationships Proximity analysis Geometry and geography processing Raster processing Building and using topologies Organizing spatial data Query performance tuning Extending Post GIS with pg Routing and procedural languages Using Post GIS in web applications PART 1 INTRODUCTION TO POSTGIS PART 2 PUTTING POSTGIS TO WORK PART 3 USING POSTGIS WITH OTHER TOOLS