We present PRISAD, the first generic rendering infrastructure for information visualization applications that use the accordion drawing technique: rubber-sheet navigation with guaranteed visibility for marked areas of interest. Our new rendering algorithms are based on the partitioning of screen-space, which allows us to handle dense dataset regions correctly. The algorithms in previous work le...

High quality mathematical illustration has long been a specialized craft, akin to the layout ofmusical scores or mathematical formulæ. Illustrating a proof, or drawing a graph, used to be difficult, and it is easy to find errors in the drawings in old books. Drawing errors are of course a problem for the understanding of a proof. Unfortunately, such cases are still common in the current scienti...

UNLABELLED The Madeline 2.0 Pedigree Drawing Engine (PDE) is a pedigree drawing program for use in linkage and family-based association studies. The program is designed to handle large and complex pedigrees with an emphasis on readability and aesthetics. For complex pedigrees, we use a hybrid algorithm in which consanguinous loops are drawn as cyclic graphs whenever possible, but we resort to a...

We present a system for drawing pastel media in real-time as an effective alternative to most existing digital solutions that basically allow for drawing arbitrary strokes in a particular style. Our approach is focused on the simulation of the natural material itself and on its interaction with the drawing surface and the drawing tool. Upon free-form drawing, a bidirectional transfer of pigment...

This article presents strategies for including graphics into LATEX documents. It shows the usage of the standard graphics packages of LATEX as well as an introduction to different graphics formats. Some external tools for converting graphics formats are discussed. 1 Overview of graphics formats In general, there exist two kinds of graphics formats: vector and bitmap graphics. For bitmaps, there...

With the adoption of tablet-based data entry devices, there is considerable interest in methods for converting hand-drawn sketches of flow charts, graphs and block diagram into accurate machine interpretations, a conversion process with many applications in engineering, presentations, and simulations. However, the recognition of hand-drawn graphics is a great challenge due to the visual similar...

In this paper we describe a novel approach to displaying complex 3D scenes on architecture that does not have support for 3D graphical display. Our system makes use of distributed graphics, employing a standard workstation as a server. This server communicates with a client via UDP sockets over a LAN link. To minimize network traffic, a compression engine is employed to compress and decompress ...

Modern computer graphics systems are able to render sophisticated 3D scenes consisting of millions of polygons. For most camera positions only a small collection of these polygons is visible. We address the problem of occlusion culling, i.e., determine hidden primitives. Aila, Miettinen, and Nordlund suggested to implement a FIFO buffer on graphics cards which is able to delay the polygons befo...

Computer graphics is the process of creating a visual presentation of an object or scene using a mapping process from the object or data space to the image space. In its most abstract form, it involves deciding what color to set each value in a two-dimensional array which is then output to a screen or printer. Traditionally, graphics is taught by starting with 2-D line drawings and proceeding t...

Striving for photorealism, texture mapping and its more advanced variations, bump and displacement mapping, have all become fundamental tools in computer graphics. Recently, the introduction of programmable graphics hardware has enabled the employment of displacement mapping in real-time applications. While displacement mapping facilitates the actual modification of the underlying geometry, it ...