Title
Moving objects and their equations of motion Moving objects and their equations of motion
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Publication type
article
Publication
Subject
Computer. Automation
Source (journal)
Lecture notes in computer science
Volume/pages
3074(2004) , p. 41-52
ISSN
0302-9743
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Moving objects are currently represented in databases by means of an explicit representation of their trajectory. However from a physical point of view, or more specifically according to Newtons second law of motion, a moving object is fully described by its equation of motion. We introduce a new data model for moving objects in which a trajectory is represented by a differential equation. A similar approach is taken in computer animation where this is known as physically based modeling. We give a query language for our data model and use techniques from physically based modeling to evaluate queries in this language.