Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
PostGIS Cookbook

You're reading from   PostGIS Cookbook Store, organize, manipulate, and analyze spatial data

Arrow left icon
Product type Paperback
Published in Mar 2018
Publisher
ISBN-13 9781788299329
Length 584 pages
Edition 2nd Edition
Languages
Tools
Arrow right icon
Authors (6):
Arrow left icon
Pedro Wightman Pedro Wightman
Author Profile Icon Pedro Wightman
Pedro Wightman
Bborie Park Bborie Park
Author Profile Icon Bborie Park
Bborie Park
Paolo Corti Paolo Corti
Author Profile Icon Paolo Corti
Paolo Corti
Stephen Vincent Mather Stephen Vincent Mather
Author Profile Icon Stephen Vincent Mather
Stephen Vincent Mather
Thomas Kraft Thomas Kraft
Author Profile Icon Thomas Kraft
Thomas Kraft
Mayra Zurbarán Mayra Zurbarán
Author Profile Icon Mayra Zurbarán
Mayra Zurbarán
+2 more Show less
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. Moving Data In and Out of PostGIS FREE CHAPTER 2. Structures That Work 3. Working with Vector Data – The Basics 4. Working with Vector Data – Advanced Recipes 5. Working with Raster Data 6. Working with pgRouting 7. Into the Nth Dimension 8. PostGIS Programming 9. PostGIS and the Web 10. Maintenance, Optimization, and Performance Tuning 11. Using Desktop Clients 12. Introduction to Location Privacy Protection Mechanisms 13. Other Books You May Enjoy

Working with GPS data


In this recipe, you will work with GPS data. This kind of data is typically saved in a .gpx file. You will import a bunch of .gpx files to PostGIS from RunKeeper, a popular social network for runners.

If you have an account on RunKeeper, you can export your .gpx files and process them by following the instructions in this recipe. Otherwise, you can use the RunKeeper .gpx files included in the runkeeper-gpx.zip file located in the chp03 directory available in the code bundle for this book.

You will first create a bash script for importing the .gpx files to a PostGIS table, using ogr2ogr. After the import is completed, you will try to write a couple of SQL queries and test some very useful functions, such as ST_MakeLine to generate polylines from point geometries, ST_Length to compute distance, and ST_Intersects to perform a spatial join operation.

Getting ready

Extract the data/chp03/runkeeper-gpx.zip file to working/chp03/runkeeper_gpx. In case you haven't been through...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime