Book Image

QGIS 2 Cookbook

By : Alex Mandel, Víctor Olaya Ferrero, Anita Graser, Alexander Bruy
Book Image

QGIS 2 Cookbook

By: Alex Mandel, Víctor Olaya Ferrero, Anita Graser, Alexander Bruy

Overview of this book

QGIS is a user-friendly, cross-platform desktop geographic information system used to make maps and analyze spatial data. QGIS allows users to understand, question, interpret, and visualize spatial data in many ways that reveal relationships, patterns, and trends in the form of maps. This book is a collection of simple to advanced techniques that are needed in everyday geospatial work, and shows how to accomplish them with QGIS. You will begin by understanding the different types of data management techniques, as well as how data exploration works. You will then learn how to perform classic vector and raster analysis with QGIS, apart from creating time-based visualizations. Finally, you will learn how to create interactive and visually appealing maps with custom cartography. By the end of this book, you will have all the necessary knowledge to handle spatial data management, exploration, and visualization tasks in QGIS.
Table of Contents (19 chapters)
QGIS 2 Cookbook
About the Authors
About the Reviewers

Getting network data from the OSM

A popular data source for real-world routing applications is OpenStreetMap (OSM). This recipe shows you how to prepare OSM data for usage with pgRouting using the osm2po command-line tool to convert OSM data to an insert script for PostGIS. Finally, we will test the data import using the pgRoutingLayer plugin.

Getting ready

Download osm2po from and unpack the download. Note that osm2po requires Java to be installed on your machine.

You also need a pgRouting-enabled database to follow this recipe.

Additionally, you should have the pgRoutingLayer plugin installed and enabled because we will use this to test the OSM data import.

You can use the wake.pbf OSM file from our sample data, or download your own data from services such as

How to do it…

Open the command line to perform the following steps. If you are working on Windows, we recommend using the osgeo4W Shell:

  1. Go to the osm2po folder and open osm2po.config in a text...