KlappentextHIGHLIGHT
The first book about PostGIS, a lightweight, open source tool that adds
geographic support to the popular PostgreSQL database. PostGIS is
used to develop location-based services.
DESCRIPTION
From mobile phone usage to online shopping and every application in
between, location is an incredibly important piece of data. PostGIS is a
high-caliber, open source tool that allows developers to take location
information and make it actionable.
PostGIS in Action will help both new and experienced database users
solve location-related problems. For those with experience in more
traditional relational databases, this book provides a background in
vector-based GIS so they can quickly move on to analyzing, viewing,
and mapping data. This tutorial includes discussion and examples of
many real-world uses.
KEY POINTS
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The only book devoted entirely to PostGIS.
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Discusses real-world problems, not academic ones.
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Covers features of PostgreSQL 8.4.
ZusammenfassungPostGIS is an open source spatial database extender for PostgreSQL. It equals or surpasses proprietary alternatives, allowing you to create location-aware queries with just a few lines of SQL code, and provides a back-end for mapping applications with minimal effort.
PostGIS in Action teaches readers of all levels to write spatial queries that solve real-world problems. It first gives you a background in vector-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. The book covers PostgreSQL 8.4, 9.0, and 9.1 features and shows you how to integrate with other GIS tools.
- An introduction to spatial databases
- Geometry types, functions, and queries
- Applying PostGIS to real-world problems
- Extending PostGIS to web and desktop applications
Familiarity with relational database concepts is helpful but not required.
