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Full Description
"The way the information is presented appeals to teachers, hobbyists, web designers-anyone looking for a way to enhance their content by using customized maps."-Warren Kelly, Pastor"It could become the de-facto tutorial volume for the subject, as well as the classic reference guide."-Thomas Duff, Lead Developer"This book is written so well and is so easy to follow it's a joy to go through."- Daniel McKinnon, Software Engineer KML began as the file format for Google Earth, but it has evolved into a full-fledged international standard for describing any geographic content-the "HTML of geography." It's already supported by applications ranging from Microsoft Virtual Earth and NASA WorldWind to Photoshop and AutoCAD. You can do amazing things with KML, and this book will show you how, using practical examples drawn from today's best online mapping applications.Drawing on her extensive experience with the creators of KML, Wernecke teaches techniques that can be used by everyone from programmers to real estate agents, scientists, students, architects, virtual explorers, and more. Highlights includeIncorporating rich content in Placemark balloons Creating overlays that superimpose your images on standard Earth browsers Generating animations that move through Placemarks, Overlays, and Models Controlling and updating map content across the Web Managing large data sets using regions and custom data types Complete KML language reference: elements, types, syntax, file structure, and conventions
Contents
Foreword xiiiPreface xvChapter 1: A Quick Tour 1KML: An International Standard 2Is the KML Specification Complete? 3A Wealth of Resources 4Creating and Sharing KML. 4Tell Your Story with KML. 4Sky in KML 8"Hello, Earth" 9The Copy-and-Paste Trick. 13What's Next? 13Chapter 2: Placemarks and Balloons 15X Marks the Spot 16Customizing Your KML Presentation 17Placemarks with Points 18Default Balloon. 18Modifying the Balloon 19Specifying a Viewpoint 31Flying to a Placemark in Google Earth 35Other Children of Placemark 39Syntax for 39Related Feature Elements 40Packaging Up KML Files into KMZ Archives 40What's Next? 43Chapter 3: Geometry 45Chapter Overview 46Coordinates: A Closer Look 46Line Strings 48Polygons 55MultiGeometry 62Models 64Including Author and Source Information 70What's Next? 70Chapter 4: Styles and Icons 71Chapter Overview 72Travels through Literature 72Building Blocks for Styles 73Shared versus Inline Styles 96Style Maps for Rollover Behavior 100What's Next? 107Chapter 5: Overlays 109Chapter Overview 110What Is an Overlay? 110Tools for Creating Overlays 112Basic Concepts 113Another Way to Specify the Viewpoint: Camera 116Ground Overlay 123Screen Overlay 128PhotoOverlay 133What's Next? 143Chapter 6: Network Link 145Chapter Overview 146What Is a Network Link? 147Why Use Network Links? 149Client/Server Basics 149Syntax for 153Simple Network Link Example 157Refreshing Network Links 159Advanced Example: Puff Volcanic Ash Tracking Model 160Sending Information from Client-Side to Server-Side 164Network Link Controls 171What's Next? 176Chapter 7: Dynamic KML 177Chapter Overview 178Key Concepts 178Updating KML 180Time and Animation in KML 195What's Next? 211Chapter 8: Dealing with Large Data Sets 213Chapter Overview 214Key Concepts 215Regions 223Super-Overlays 235Extended Data 245What's Next? 259Appendix A: KML Reference 261Appendix B: Sky Data in KML 321Index 331
