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| Titel |
Intelligent Visualization of Geo-Information on the Future Web |
| VerfasserIn |
P. Slusallek, R. Jochem, K. Sons, H. Hoffmann |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250071637
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| Zusammenfassung |
| Visualization is a key component of the "Observation Web" and will
become even more important in the future as geo data becomes more widely
accessible. The common statement that "Data that cannot be seen, does
not exist" is especially true for non-experts, like most citizens.
The Web provides the most interesting platform for making data easily
and widely available. However, today's Web is not well suited for the
interactive visualization and exploration that is often needed for geo
data. Support for 3D data was added only recently and at an extremely
low level (WebGL), but even the 2D visualization capabilities of HTML
e.g. (images, canvas, SVG) are rather limited, especially regarding
interactivity.
We have developed XML3D as an extension to HTML-5. It allows for
compactly describing 2D and 3D data directly as elements of an HTML-5
document. All graphics elements are part of the Document Object Model
(DOM) and can be manipulated via the same set of DOM events and methods
that millions of Web developers use on a daily basis. Thus, XML3D makes
highly interactive 2D and 3D visualization easily usable, not only for
geo data. XML3D is supported by any WebGL-capable browser but we also
provide native implementations in Firefox and Chromium.
As an example, we show how OpenStreetMap data can be mapped directly to
XML3D and visualized interactively in any Web page. We show how this
data can be easily augmented with additional data from the Web via a few
lines of Javascript. We also show how embedded semantic data (via RDFa)
allows for linking the visualization back to the data's origin, thus
providing an immersive interface for interacting with and modifying the
original data.
XML3D is used as key input for standardization within the W3C Community
Group on "Declarative 3D for the Web" chaired by the DFKI and has
recently been selected as one of the Generic Enabler for the EU Future
Internet initiative. |
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