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Computer Graphics and Applications, IEEE

Issue 4 • Date July-Aug. 2006

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Displaying Results 1 - 23 of 23
  • [Front cover]

    Page(s): c1
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  • Call for Papers: Computational Photography

    Page(s): c2
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  • Masthead

    Page(s): 1
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  • Table of contents

    Page(s): 2 - 3
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  • Branching into Cosmic Unity

    Page(s): 4 - 5
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  • Visualization viewpoints: beyond geovisualization

    Page(s): 6 - 9
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (358 KB) |  | HTML iconHTML  

    The cartographic community realizes that the problems presented by the need to understand complex data can't be solved with maps alone, although they are convinced of their visual strength in complex circumstances. The community, and especially the commission on visualization and virtual environments of the International Cartographic Association, has taken a different approach to mapping. In practice, we should view geovisualization activities in the context of the geoprofessional's working approach. Geodata and software from all types of sources are now linked in geodata infrastructures established on local, national, and international levels. Users solve their problems with services and data available via the infrastructure and no longer need to have all data and software locally available. We should keep reaching to other technology-oriented disciplines, but we need to strive to make geovisualization knowledge common in application fields View full abstract»

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  • V-Pong: an immersive table tennis simulation

    Page(s): 10 - 13
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (740 KB) |  | HTML iconHTML  

    Most applications for immersive virtual environments (VEs) allow slow-or medium-speed user interaction. Examples of this kind of interaction include changing an object's position, triggering an action, or setting a control parameter. To broaden the application range for VR systems, we need to integrate technologies that allow for faster VE-user movements. This raises the question, What response times can we achieve with VR systems built from standard recent hardware components? To answer this question, we created a table tennis simulation as this game involves fast user movements and has moderate space requirements. In this article we report on the realization of our immersive table tennis simulation, V-Pong View full abstract»

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  • Visualizing the underwater behavior of humpback whales

    Page(s): 14 - 18
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1831 KB) |  | HTML iconHTML  

    A new collaboration between visualization experts, engineers, and marine biologists has changed. For the first time, we can see and study the foraging behavior of humpback whales. Our study's primary objective was furthering the science of marine mammal ethology. We also had a second objective: field testing GeoZui4D, an innovative test-bench for investigate effective ways of navigating through time-varying geospatial data View full abstract»

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  • Call for Award Nominations: Help Us Recognize Computing's Most Prestigious Contributors

    Page(s): 19
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  • Guest Editors' Introduction: Exploring Geovisualization

    Page(s): 20 - 21
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (192 KB) |  | HTML iconHTML  

    The guest editors introduce this special issue on exploring geovisualization. The articles focus on methods, processes, and collaborations involved with visualizing geographic information and geospatial data. View full abstract»

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  • MapShaper.org: a map generalization Web service

    Page(s): 22 - 27
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (836 KB) |  | HTML iconHTML  

    Map is a macromedia flash-based WYSIWYG map generalization Web service for real-time generalizing and editing of vector map data. Requiring only a Web browser with the flash plug-in, it offers line and shape simplification and smoothing. Users can upload map files, perform generalization operations, and export and download their work View full abstract»

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  • Web-based visualization of 3D geospatial data using Java3D

    Page(s): 28 - 33
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1236 KB) |  | HTML iconHTML  

    Spatial database servers allow for the storage and access of 3D geospatial data using open geospatial consortium standards. The Geospatial Database Online Visualization Environment (GeoDOVE) is a prototype 3D Web-based geographic information system that demonstrates how Java3D can reduce bandwidth and allow direct connectivity to spatially enabled database systems. We've developed GeoDOVE, a Java3D-based prototype system that retrieves geospatial data from conventional spatial database servers, allows modification of the visualization during runtime, and lets users remotely modify attributes using the structured query language (SQL) View full abstract»

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  • The distance-similarity metaphor in region-display spatializations

    Page(s): 34 - 44
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3302 KB) |  | HTML iconHTML  

    Region-display spatializations represent documents metaphorically as points within regions. Semantic interrelatedness is expressed by some combination of interpoint distance and region membership. In two experiments, the authors investigate judgments of document similarity as a function of these variables. Distance matters, but region membership largely determines judged similarity; hue further modifies it. Spatial metaphors are a popular approach to visualizing information in such forms as information worlds, information spaces, and cyberspaces View full abstract»

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  • IEEE Computer Society Digital Library Packages for Institutions

    Page(s): 45
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  • Adviser: immersive field work for planetary geoscientists

    Page(s): 46 - 54
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3464 KB) |  | HTML iconHTML  

    The Adviser prototype system makes it possible for planetary geologists to conduct virtual field research on remote environments such as Antarctica and Mars. Among Adviser's interactive tools are mission-planning and measurement tools that let researchers generate new data and gain interpretive insights. Five case studies illustrate the system's applications and observed benefits View full abstract»

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  • Real-time landscape model interaction using a tangible geospatial modeling environment

    Page(s): 55 - 63
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1575 KB) |  | HTML iconHTML  

    Emerging technologies that combine the flexibility of digital landscape representation with easy-to-interpret 3D physical models open new possibilities for user interaction with geospatial data. A prototype tangible geospatial modeling environment lets users interact with landscape analysis and simulations using a tangible physical model. We introduce a concept that builds upon previous independent tangible user interface (TUI) and terrain analysis research and aims at more intuitive collaborative interaction with digital landscape data View full abstract»

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  • Magic Lenses for augmented virtual environments

    Page(s): 64 - 73
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2264 KB) |  | HTML iconHTML  

    The authors developed a Magic Lens framework for Scape, an augmented virtual environment (AVE). They generalize the functional characteristics of Magic Lenses in terms of 3D visualization in AVEs and present two tangible Magic Lens-enabled devices with complementary interface capabilities. The authors also demonstrate their Magic Lens devices through testbed applications relevant to urban planning and medical training. This article explores an interface technique that manages viewing complexity and offers a set of versatile visualization capabilities in 3D augmented virtual environments (AVE) View full abstract»

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  • Strategies for the visualization of multiple 2D vector fields

    Page(s): 74 - 82
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (4138 KB) |  | HTML iconHTML  

    Strategies for effectively visualizing colocated 2D vector fields enable understanding of key physical structures of one vector field within the context of a related vector field. This article describes the range of effects possible by combining several existing flow visualization techniques for analyzing multiple vector fields. Our present efforts focus primarily on the investigation of methods for effectively visualizing multiple fields defined over a 2D domain; the problem of effectively visualizing multiple fields defined over a 3D domain is even more challenging, and an important area for future work View full abstract»

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  • Computer graphics visions and challenges: a European perspective

    Page(s): 83 - 89
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2423 KB) |  | HTML iconHTML  

    We have briefly described important visions and challenges in computer graphics. They are a personal and therefore subjective selection. But most of these issues have to be addressed and solved - no matter if we call them visions or challenges or something else - if we want to make and further develop computer graphics into a key enabling technology for our IT-based society View full abstract»

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  • How to Solve a Cubic Equation, Part 2: The 11 Case

    Page(s): 90 - 100
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    This paper describes the roots of cubic equations. So our goal is to find a good practical closed-form solution process for cubic equations. Then, at the end of this discussion, we go back and make some observations about the relation between iterative and closed- form solutions View full abstract»

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  • Tools and Products

    Page(s): 101 - 104
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  • 2006 Editorial Calendar

    Page(s): c3
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  • IEEE Computer Society Celebrates Two 60-Year Anniversaries

    Page(s): c4
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Aims & Scope

IEEE Computer Graphics and Applications bridges the theory and practice of computer graphics.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
L. Miguel Encarnação
University of Iowa