Computer-Aided Design and Applications is an international journal on the applications of CAD CAM. It publishes papers in general domain plus emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, data mining, internet, education, genetic algorithms engines. The aimed at all developers users technology to ptovide solutions for various stages design manufacturing. about technol...

Rendering animations requires data structures which allow for an easy handling of the movements and changes in the scene. For a sophisticated renderer, it is very important to access the information describing the motion of the objects, because such knowledge can be used to reduce the render time. We describe an animation model based on an annotated graph, on deenitions of dimensions and on imp...

In this paper, we address the problem of animating and controlling the locomotion of bodies which are propelled by pulse-like and periodic muscle activation. This kind of locomotion mode is encountered in a variety of real animals and an even larger variety of imaginary creatures could be propelled in this way. We propose a step-by-step methodology for the design of feedback controllers that ca...

Our goal in this project is to push forward the state-of-the-art by calling into the scene real-time interaction and vision techniques. In this way, by integrating motion capture with procedural graphics and live displays, we expand the creative possibilities enabling graphical elements to be used, not as a mere passive set element, but primarily as an active one – a virtual agent capable of in...

Despite the maturity in solutions for animating expressive virtual characters, innovations realizing the creative intent of story writers have yet to make the same strides. The key challenge is to provide an accessible, yet expressive interface for story authoring that enables the rapid prototyping, iteration, and deployment of narrative concepts. We present CANVAS, a computerassisted visual au...

Achieving performance, reliability, and scalability has proven difficult for distributed file systems. Placement of data, load distribution and other overheads are often the culprits. Profiling is a useful technique for understanding file system behavior, improving performance and debugging problems. Existing file system profiling methods often examine fine-grained system activity, such as the ...

This paper surveys the set of techniques developed in Computer Graphics for animating human walking. First, we focus on the evolution from purely kinematic \knowledgebased" methods to approaches that incorporate dynamics constraints, or use dynamics simulations to generate motion. Then, we review the recent advances in motion editing, that enable the control of complex animations by interactive...

This paper explores the notion of marrying two technologies: raster-scan computer animation and optical video discs. Animated sequences, generated at non real-time rates, then transfered to video disc, can be recalled under user control at real-time rates. Highly detailed animation may be combined with other media in interactive systems. Such systems inherently offer a greater degree of flexibl...

Using an existing ontology of anatomic structures and functions [6] as a starting point, our goal in this thesis will be to propose a general framework for creating ontologies of human movements and using them to generate 3D computer animation of the movement in the ontology. This is a difficult task that requires principled approaches for decomposing more complex movements into simpler motion ...