Book Image

OpenStreetMap

Book Image

OpenStreetMap

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)
OpenStreetMap
Credits
About the Author
About the Reviewers
Preface
4
How OpenStreetMap Records Geographical Features
Index

Potlatch


Potlatch, named after a native American custom of giving gifts, is a Flash-based online editor for OpenStreetMap. Its biggest advantage over other editors is that it doesn't need to be installed for you to use it. You can use any computer with a browser and a Flash plugin to edit OpenStreetMap using Potlatch, and it's safe to use on public computers, provided you log out of the site afterward.

Potlatch has fewer features than the desktop editors we'll cover, but it's still able to create and edit the same data as any other editor. It has a system of presets, which makes tagging the data you create faster and prevents typing errors, but still allows you to enter free-form keys and values for tags. Potlatch does include support for photo mapping, but the workflow currently involves uploading your pictures to a separate website, so we won't cover this feature.

Launching Potlatch

You must be logged in to openstreetmap.org to use Potlatch. Once you have logged in, there are two ways to...