Graphics performance is increased through the development of various hardware-supported graphics architectures. The majority of these architectures include a rasterizer to which the 3D vertex coordinates in image space and associated color values are sent. For rasterization it is common to use triangles or triangle strips as basic drawing primitives. The rasterizer interpolates the depth and co...

Interpretation of paper drawings has received a good deal of attention over the last decade. Progress has also been made in related areas such as direct interpretation of human drawings (HCI), search and indexing of graphics databases, and knowledge representation in the domain of graphics and drawing understanding. One of the most interesting applications in this domain is the analysis of sema...

Woven cloth can commonly be seen in daily life and also in animation. Unless prevented in some way, woven cloth usually frays at the edges. However, in computer graphics, woven cloth is typically modeled as a continuum sheet, which is not suitable for representing frays. This paper proposes a model that allows yarn movement and slippage during cloth tearing. Drawing upon techniques from textile...

This paper presents fully automatic approach for information extraction from digitized gray level images of Telecom Egypt diagrams. The information are feed into database system for later use by Telecom Egypt technicians staff. The first step is to separate between the graphic components and the text associated to them. The segmented texts are recognized by OCR system. The diagrams are segmente...

The World Wide Web (WWW) offers the potential to deliver specialized information to an audience of unprecedented size. Along with this exciting new opportunity comes a challenge for software developers: instead of rewriting our software applications to operate over the WWW, how can we maximize software reuse by retrofitting existing applications? We have developed a Web server tool, written in ...

Current approaches to algorithm visualization (AV) construction run the gamut from low-level programming to sketching on the Natural User Interface (NUI). While we witness a constant improvement in terms of ease of use and learning curve, existing methods still strike us as somewhat wanting in naturalness, if not downright restrictive. Based on observations of an on-going study, we argue that i...

The XML-based specification for Scalable Vector Graphics(SVG), sponsored by the World Wide Web consortium, allows for compact and descriptive vector graphics for the Web. SVG's domain of discourse is that of graphic primitives whose optional attributes express line thickness, fill patterns, text size and so on. These primitives have very different properties from those of the traditional docume...

This paper presents a development consisting of a virtual reality application used to move, view and manipulate mechanisms. These mechanisms can be assembled or disassembled and checked if work properly. A virtual environment can be used and the mechanism can be observed by different ways using a HMD or stereoscopic glasses. The main object of this work is the development of new methodologies f...

In cartoon drawings, hair is a strong vehicle of personality, emotions and style. In this paper, we present a powerful procedure to imitate the appearance of cartoon-like hair with a small set of parameters. Our approach is inspired by an inking technique called feathering, which consists of drawing hatches along the hair orientation while emphasizing the highlights with ink stains. Our system ...

Visualization and analysis of metabolic networks is becoming increasingly important. Due to the tremendous research efforts in this area of Biochemistry, the level of detail in these networks is quickly increasing. Both, existing systems and systems under development concentrate on the static visualization of metabolic networks based on classical graph layout methods or simple ad-hoc methods. T...