IEEE Computer Graphics and Applications

The need to train people for increasingly complex tasks given diminishing budgets makes simulation-based training attractive in both the commercial and military sectors. Training systems that use virtual environment (VE) technology are potentially both ...

Previous attempts to generate grayscale fonts by filtering and resampling high-resolution masters produced fuzzy looking characters lacking sharp contrast profiles and uniform character structure elements (horizontal and vertical bars, curved stems, ...

Using nonequilibirum molecular dynamics, we investigate the particle displacements and structural transformations that occur in single crystal silicon when indented with an atomically-sharp diamond tool-bit. We then use image synthesis to visualize ...

The Graphical Kernel System (GKS), published in 1985, was the first ISO standard for computer graphics programming. The first revision of GKS, termed GKS-94 was completed during 1994 and the new standard (ISO/IEC 7942-1:1994) was published in November ...

Ray tracing has been an effective technique for producing realistic images of solids presented by Constructive Solid Geometry (CSG). In this paper we propose a nonuniform space subdivision that aims to reduce the number of the ray-object intersection ...

Building physical models of natural objects such as parts of the human skeleton is essentially a reverse engineering process, starting with large volumes of 3D data acquired with medical imaging technologies. Regarding the considerable complexity of ...

Layered manufacturing technologies have revolutionized the process of prototyping complex geometric designs. And yet, the geometric modeling and CAD tools employed for such technologies have remained fairly traditional. We contend that volume modeling ...

Rapid prototyping processes rigorously require that a CAD model to be manufactured must represent a closed volume and the boundary of the model be continuous and closed. This requirement is difficult to be met by surface models consisting of a ...

High quality CAD models are essential to the successful utilization of automated manufacturing technologies known as rapid prototyping, solid freeform fabrication, and layered manufacturing. Such CAD models should, at the very least, describe solids ...

This paper describes a research and development project called the Tele-Manufacturing Facility (TMF). The TMF is creating an automated rapid prototyping (RP) capability on the Internet. It is undertaking the necessary research and development to make it ...

Greater access to computer resources has prompted scientists, engineers, and designers in all disciplines to go beyond the “number crunching” paradigm and establish visual tools and methodologies that are discipline-independent. The tools ...

Chemists learn about chemical and biological reactions by studying the interactions between molecular structures. A molecule's shape and its fit with other structures offer clues to its purpose and suggest ways it can be modified to create new ...

When dealing with graphics operations that must be fast (like the inner loops of rendering algorithms), I usually like to do calculations with fixed-point arithmetic (that is, scaled integers) rather than floating point arithmetic. The exact scaling ...

This index covers all technical items papers, correspondence, reviews, etc. that appeared in this periodical during 1995, and items from previous years that were commented upon or corrected in 1995. The Author Index contains the primary entry for each ...