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What is Scene-Hierarchy

Handbook of Research on Geoinformatics
The organization of the elements of a 3D virtual scene into successive levels, in such a way that the object under which other objects are grouped is called the parent and the grouped objects are called its children. When a parent object is transformed, the children are also transformed.
Published in Chapter:
Virtual Environments for Geospatial Applications
Magesh Chandramouli (Purdue University, USA) and Bo Huang (Chinese University of Hong Kong, China)
Copyright: © 2009 |Pages: 12
DOI: 10.4018/978-1-59140-995-3.ch040
This article explores the application of virtual environments to 3D geospatial visualization and exploration. VR worlds provide powerful functionalities for model generation and animation and are indeed a valuable tool for geospatial visualization. Subsequently, related issues such as the constraints in progressive terrain rendering, geographic data modeling, photo-realism in virtual worlds, and the system performance with relatively larger files are discussed. Nevertheless, to accomplish the desired results and to attain a higher level of functionality, a good level of experience in VR programming and the jurisprudence to choose the appropriate tool are necessary. Although a standalone VR application is not capable of a higher level of interaction, using the SCRIPT nodes and the External Authoring Interface additional functionalities can be integrated. Intended for use over the internet with a VR browser, such virtual environments serve not only as a visualization tool, but also a powerful medium for geospatial data exploration.
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