Book Image


Book Image


Overview of this book

Imagine being able to create accurate maps that look how you want them to, and use them on the Web or in print, for free. OpenStreetMap allows exactly that, with no restrictions on how or where you use your maps. OpenStreetMap is perfect for businesses that want to include maps on their website or in publications without paying high fees. With this book in hand you have the power to make, alter, and use this geographical data in a collaborative way from anywhere on the Earth.OpenStreetMap was started because most maps you think of as free actually have legal or technical restrictions on their use, holding back people from using them in creative, productive, or unexpected ways. This book will allow you to take control of your own maps and use them smoothly. This book introduces the reader to the OpenStreetMap project and shows you how to participate in the project, and make use of the data it provides. No prior knowledge of the project is assumed, and technical details are kept to a minimum.In this book, you'll learn how easy it is to add your neighborhood to OpenStreetMap using inexpensive GPS equipment, or even no GPS at all. You'll find out how to communicate with other mappers working in the same area, and where to find more information about how to map the world around you.Once you have your area mapped, you'll learn how to turn this information into maps, whether for use in print or online, large or small, and with the details you want shown. The book describes several rendering methods, each suited to different types of map, and takes you through a tutorial on each one.
Table of Contents (17 chapters)
About the Author
About the Reviewers
How OpenStreetMap Records Geographical Features

What is Osmosis?

Osmosis is a command-line Java application that's often called the "Swiss Army Knife" of OpenStreetMap. It can perform a number of tasks to manipulate OpenStreetMap data in some way, and thanks to its plugin-based architecture, can be extended to perform new tasks. For many large-scale uses of OpenStreetMap data, Osmosis is the first tool you'll use before trying to render a map or use the data in some other way. For some tasks, it's the only way of getting the job done.

Some examples of what Osmosis can do include:

  • Extracting data inside a bounding box or polygon

  • Filtering the data based on primitive type and tags

  • Splitting one large OpenStreetMap file into several smaller ones

  • Importing data into an OpenStreetMap server

  • Generating a list of changes between two OpenStreetMap files

  • Applying diff files to a planet file or database to keep it up-to-date

We'll cover a simple example of each of these tasks.

Osmosis itself is open source software, released into the public domain. This...