Graphics

About: Graphics is a research topic. Over the lifetime, 17394 publications have been published within this topic receiving 411468 citations. The topic is also known as: graphic.

Computers Graphics and Learning

Abstract: The first of the topics begins with an overview of instructional computer graphics. This leads into an overview of the status of instructional visual research including discussions on visual perception, visual cognition, and theories on storing visual information in short-term and long-term memory. More practical application information is found in the next few chapters covering when and how static and animated graphics should be integrated into computer based instruction. The book concludes with a consideration of the role visuals play with multimedia. The useful information of each chapter is delivered with a cautious and wise nature. Rieber introduces his book with the first principle of instructional graphics, which I found to be very insightful. It reads, "There are times when pictures can aid learning, times when pictures do not aid learning but do no harm, and times when pictures do not aid learning and are distracting." The general premise throughout the book is that learning is paramount and should take center stage. He further warns the instructional designer about becoming "technocentric" (this is where technology dictates decision making) and recommends that media decisions not be made untilother instructional decisions are made. Again and again, from chapter to chapter, the reader is reminded of this underlying premise which made this book particularly effective. Another strength was the comprehensive nature of the book. There was an excellent balance of theory, research, and application to ensure the reader will gain the knowledge for appropriate integration of graphics into instructional materials. The theoretical information covers the role of visuals in communication and education, quoting many research sources for validation. There is an overview of three types of instructional graphics (representational, analogical, and arbitrary) and an analysis of their possible use in Gagneis domains of learning. Rieber states that the design of instructional graphics is strongly influenced by the inter-relationships and interdependency of the five domains. To help the reader choose the correct graphic for the job intended, a section describing the five applications of instructional graphics (cosmetic, motivation, attention-gaining, presentation, and practice) is included. It is recognized that these applications originated from Gagne's nine events of instruction.

The star user interface: an overview

Abstract: In April 1981 Xerox announced the 8010 Star Information System, a new personal computer designed for office professionals who create, analyze, and distribute information. The Star user interface differs from that of other office computer systems by its emphasis on graphics, its adherence to a metaphor of a physical office, and its rigorous application of a small set of design principles. The graphic imagery reduces the amount of typing and remembering required to operate the system. The office metaphor makes the system seem familiar and friendly; it reduces the alien feel that many computer systems have. The design principles unify the nearly two dozen functional areas of Star, increasing the coherence of the system and allowing user experience in one area to apply in others.

An apparatus, system and method to transmit and display acquired well data in near real time at a remote location

Abstract: The present invention provides a system, apparatus and method for transmitting logging data from a primary location to a remote location in near real time. The logs can be viewed almost simultaneously at the primary and remote locations, as data is being acquired. The present invention also provides for a system for viewing logs in near real time at a primary location and a remote location which includes a first means for reading while writing at the primary location, a second means for reading while writing at the remote location which is identical to the first means for reading while writing, a first file system at the primary location, the first file system having data written to it by the first means for reading while writing as numerical data or graphics data, a first rendering means for reading the graphics data from the first file system and rendering the graphics data so that it can be displayed, a first display means for displaying the rendered graphics data, a first file transfer utility means for transmitting the data from the primary location to the remote location over a communications system, a second file transfer utility means for receiving the data at the remote location, a second file system at the remote location, to which the second file transfer utility means writes the received data using the second means for reading while writing, a second rendering means for reading graphics data from the second file system and rendering the graphics data so that it can be displayed, an input interface means which directs signals from a user input to the second rendering means to adjust the display of the log, and a second display means for displaying the rendered graphics data at the remote location.

Equalizer: A Scalable Parallel Rendering Framework

Abstract: Continuing improvements in CPU and GPU performances as well as increasing multi-core processor and cluster-based parallelism demand for flexible and scalable parallel rendering solutions that can exploit multipipe hardware accelerated graphics. In fact, to achieve interactive visualization, scalable rendering systems are essential to cope with the rapid growth of data sets. However, parallel rendering systems are non-trivial to develop and often only application specific implementations have been proposed. The task of developing a scalable parallel rendering framework is even more difficult if it should be generic to support various types of data and visualization applications, and at the same time work efficiently on a cluster with distributed graphics cards. In this paper we introduce a novel system called Equalizer, a toolkit for scalable parallel rendering based on OpenGL which provides an application programming interface (API) to develop scalable graphics applications for a wide range of systems ranging from large distributed visualization clusters and multi-processor multipipe graphics systems to single-processor single-pipe desktop machines. We describe the system architecture, the basic API, discuss its advantages over previous approaches, present example configurations and usage scenarios as well as scalability results.

A hidden surface algorithm for computer generated halftone pictures

Abstract: : The application of computer graphics to problem solving has increased over the past few years. The representation of data in the form of line drawings, graphics, charts, diagrams and line plots has been explored extensively. This paper addresses itself to some new techniques used to solve problems associated with extending the power of computer graphics to include black and white, and color shading. In particular it presents a new method for converting data describing three-dimensional objects into data that can be used to generate two-dimensional halftone images. It deals with some problems that arise in black and white, and color shading.