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

OSM Inspector


OSM Inspector (http://tools.geofabrik.de/osmi/) is a web-based tool provided by German consultancy GeoFabrik, and it checks for several classes of potential problems with OpenStreetMap data. The interface looks as shown in the following screenshot:

OSM Inspector doesn't require any registration or configuration; simply visit the site and use the slippy map to find the area in which you're interested. It's updated once every two days, so again your edits won't show up straight away. The date of the current data in use is shown below the slippy map. Across the top of the page are the view controls: a View drop-down list that chooses which class of problem to look at, the Base layer drop-down that allows you to choose which map rendering to use, and a transparency slider for the slippy map.

OSM Inspector has four Views that work for the whole world:

  • Geometry tells you about problems such as self-intersecting ways, duplicate nodes in ways, and very long ways

  • Tagging tells you about...