Le portail francophone de la géomatique

Les graphiques vectoriels adaptables ou SVG sont un nouveau standard validé par le W3C et reposant sur XML. Ils permettent d'obtenir des documents web, à la fois graphiques et textuels, plus légers, rapides à charger et bien plus interactifs. Les documents au format SVG, à la différence des fichiers bitmap tels que les GIF, PNG ou JPEG, ne souffrent pas de problèmes de pixellisation car leur résolution n'est pas fixe et ils sont lisibles à partir de n'importe quelle plate-forme : ordinateurs de bureau PC ou Mac, assistants personnels ou téléphones portables dits smartphones. Les images SVG s'adaptent, en effet, à tous types de résolutions et toutes tailles d'écran. Par ailleurs, SVG reposant sur XML, toute donnée mise en forme devient alors exploitable. SVG s'adresse aux programmeurs XML, à ceux qui ont besoin d'utiliser du vectoriel pour des applications diverses intensives graphiquement (architecture, cartographie) ainsi qu'aux webmasters qui cherchent à créer des ... Lire la suite

Scalable Vector Graphics -- or SVG -- is the new XML-based graphics standard from the W3C that will enable Web documents to be smaller, faster and more interactive. J. David Eisenberg's insightful book takes you through the ins and outs of SVG, beginning with basics needed to create simple line drawings and then moving through more complicated features like filters, transformations, and integration with Java, Perl, and XSLT. SVG makes it possible for designers to escape the constant need to update graphics by hand or use custom code to generate bitmap images. While SVG was created with the Web in mind, the language has a variety of other uses. SVG makes it much easier to automate graphics generation, create charts and graphics based on a wide variety of data sources, or create images that users can zoom in on and explore. Whether you're a graphic designer looking for new tools, or a programmer creating and managing graphics, SVG Essentials provides you with a solid foundation.

This is the first book devoted to both SVG and X3D as a new and universal means of visualizing information. It presents the state-of-the-art research emerging in this novel area and introduces SVG and X3D fundamentals and leading authoring tools. The key topics covered include: - The foundations of SVG and X3D - Data, information, knowledge and network visualization - Advanced and distributed user interfaces - Visualizing metadata and the Semantic Web - Visual interfaces to Web services - New trends and paradigms in publishing and Interactive TV - Displaying geographically referenced data and chemical structures - Advanced use of Adobe Illustrator and X3D-Edit authoring tools This book will be essential reading not only for researchers, Web developers and graduate students but also for undergraduates and everyone who is interested in using the next-generation computer graphics on their web sites.

The development of the Internet has changed the environment for Geographical Information Systems (GIS), with the emphasis shifting from analysis to the sharing of data and information over the Internet thus making GIS more mobile and powerful. The Geography Mark-Up Language (GML) was developed as the standard language and is emerging as the foundation for Internet GIS. Geography Mark-Up Language: Foundation for the Geo-Web provides a broad coverage of the use of GML in different application areas, along with the technical means for building these applications.
Starting from the basic concepts, this book works through all the important topics in both GML 2.0 and GML 3.0, with illustrations and worked examples to demonstrate its use. Organized into two sections, Volume I introduces readers to the new world of GML, and explains how it can be used across a broad range of GIS projects. It deals with the basic concepts of XML and GML, and enables readers to make decisions on the ... Lire la suite