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
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 6. Network Analysis

In this chapter, we will cover the following recipes:

  • Creating a simple routing network

  • Calculating the shortest paths using the Road graph plugin

  • Routing with one-way streets in the Road graph plugin

  • Calculating the shortest paths with the QGIS network analysis library

  • Routing point sequences

  • Automating multiple route computation using batch processing

  • Matching points to the nearest line

  • Creating a network for pgRouting

  • Visualizing the pgRouting results in QGIS

  • Using the pgRoutingLayer plugin for convenience

  • Getting network data from the OSM