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14-September-2008 12:50:31 - Visualization computer graphics Redirected from Educational visualization Merge arrow It has been suggested that this article or section be merged into visualization. Discuss See also Visualization and Information graphics Visualization of how a car deforms in an asymmetrical crash using finite element analysis. Visualization of how a car deforms in an asymmetrical crash using finite element analysis. Visualization is any technique for creating images, diagrams, or animations to communicate a message. Visualization through visual imagery has been an effective way to communicate both abstract and concrete ideas since the dawn of man. Examples from history include cave paintings, Egyptian hieroglyphs, Greek geometry, and Leonardo da Vinci's revolutionary methods of technical drawing for engineering and scientific purposes. Visualization today has ever-expanding applications in science, education, engineering e.g. product visualization, interactive multimedia, medicine , etc. Typical of a visualization application is the field of computer graphics. The invention of computer graphics may be the most important development in visualization since the invention of central perspective in the Renaissance period. The development of animation also helped advance visualization. Contents 1 Overview 2 Fields of visualization 2.1 Educational visualization 2.2 Information visualization 2.3 Knowledge visualization 2.4 Product Visualization 2.5 Visual communication 2.6 Visual analytics 3 Visualization techniques 4 Related research areas 5 See also 6 References 7 Further reading 8 External links 8.1 Information visualization 8.2 Knowledge visualization 8.3 Visual analytics Overview The Ptolemy world map, reconstituted from Ptolemy's Geographia circa 150, indicating the countries of Serica and Sinae China at the extreme right, beyond the island of Taprobane Sri Lanka, oversized and the Aurea Chersonesus Southeast Asian peninsula. The Ptolemy world map, reconstituted from Ptolemy's Geographia circa 150, indicating the countries of Serica and Sinae China at the extreme right, beyond the island of Taprobane Sri Lanka, oversized and the Aurea Chersonesus Southeast Asian peninsula. Charles Minard's information graphic of Napoleon's march Charles Minard's information graphic of Napoleon's march The use of visualization to present information is not a new phenomenon. It has been used in maps, scientific drawings, and data plots for over a thousand years. Examples from cartography include Ptolemy's Geographia 2nd Century AD, a map of China 1137 AD, and Minard's map 1861 of Napoleon's invasion of Russia half a century earlier. Most of the concepts learned in devising these images carry over in a straight forward manner to computer visualization. Edward Tufte has written two critically acclaimed books that explain many of these principles. Computer graphics has from its beginning been used to study scientific problems. However, in its early days the lack of graphics power often limited its usefulness. The recent emphasis on visualization started in 1987 with the special issue of Computer Graphics on Visualization in Scientific Computing. Since then there have been several conferences and workshops, co-sponsored by the IEEE Computer Society and ACM SIGGRAPH, devoted to the general topic, and special areas in the field, for example volume visualization. Most people are familiar with the digital animations produced to present meteorological data during weather reports on television, though few can distinguish between those models of reality and the satellite photos that are also shown on such programs. TV also offers scientific visualizations when it shows computer drawn and animated reconstructions of road or airplane accidents. Some of the most popular examples of scientific visualizations are computer-generated images that show real spacecraft in action, out in the void far beyond Earth, or on other planets. Dynamic forms of visualization, such as educational animation, have the potential to enhance learning about systems that change over time. Apart from the distinction between interactive visualizations and animation, the most useful categorization is probably between abstract and model-based scientific visualizations. The abstract visualizations show completely conceptual constructs in 2D or 3D. These generated shapes are completely arbitrary. The model-based visualizations either place overlays of data on real or digitally constructed images of reality, or they make a digital construction of a real object directly from the scientific data. Scientific visualization is usually done with specialized software, though there are a few exceptions, noted below. Some of these specialized programs have been released as Open source software, having very often its origins in universities, within an academic environment where sharing software tools and giving access to the source code is common. There are also many proprietary software packages of scientific visualization tools. Models and frameworks for building visualizations include the data flow models popularized by systems such as AVS, IRIS Explorer, and VTK toolkit, and data state models in spreadsheet systems such as the Spreadsheet for Visualization and Spreadsheet for Images. Fields of visualization A scientific visualization of an extremely large simulation of a Raleigh-Taylor instability caused by two mixing fluids. A scientific visualization of an extremely large simulation of a Raleigh-Taylor instability caused by two mixing fluids. As a subject in computer science, data visualization or scientific visualization is the use of interactive, sensory representations, typically visual, of abstract data to reinforce cognition, hypothesis building and reasoning. Educational visualization Educational visualization is using a simulation normally created on a computer to create an image of something so it can be taught about. In the Roman times, this is very useful when teaching about a topic which is difficult to otherwise see, for example, atomic structure, because atoms are far too small to be studied easily without expensive and difficult to use scientific equipment. It can also be used to view past events, such as looking at dinosaurs, or looking at things that are difficult or fragile to look at in reality like the human skeleton, without causing physical or mental harm to a subjective volunteer or cadaver. Information visualization Information visualization concentrates on the use of computer-supported tools to explore large amount of abstract data. The term information visualization was originally coined by the User Interface Research Group at Xerox PARC and included Dr. Jock Mackinlay. Practical application of information visualization in computer programs involves selecting, transforming and representing abstract data in a form that facilitates human interaction for exploration and understanding. Important aspects of information visualization are dynamics of visual representation and the interactivity. Strong techniques enable the user to modify the visualization in real-time, thus affording unparalleled perception of patterns and structural relations in the abstract data in question. Knowledge visualization The use of visual representations to transfer knowledge between at least two persons aims to improve the transfer of knowledge by using computer and non-computer based visualization methods complementarily.1 Examples of such visual formats are sketches, diagrams, images, objects, interactive visualizations, information visualization applications and imaginary visualizations as in stories. While information visualization concentrates on the use of computer-supported tools to derive new insights, knowledge visualization focuses on transferring insights and creating new knowledge in groups. Beyond the mere transfer of facts, knowledge visualization aims to further transfer insights, experiences, attitudes, values, expectations, perspectives, opinions, and predictions by using various complementary visualizations. Product Visualization Product Visualization involves visualization software technology for the viewing and manipulation of 3D models, technical drawing and other related documentation of manufactured components and large assemblies of products. It is a key part of Product Lifecycle Management. Product visualization software typically provides high levels of photorealism so that a product can be viewed before it is actually manufactured. This supports functions ranging from design and styling to sales and marketing. Technical visualization is an important aspect of product development. Originally technical drawings were made by hand, but with the rise of advanced computer graphics the drawing board has been replaced by computer-aided design CAD. CAD-drawings and models have several advantages over hand-made drawings such as the possibility of 3-D modeling, rapid prototyping and simulation. Visual communication Visual communication is the communication of ideas through the visual display of information. Primarily associated with two dimensional images, it includes: alphanumerics, art, signs, and electronic resources. Recent research in the field has focused on web design and graphically oriented usability. Visual analytics Visual analytics focuses on human interaction with visualization systems as part of a larger process of data analysis. Visual analytics has been defined as the science of analytical reasoning supported by the interactive visual interface 2. Its focus is on human information discourse interaction within massive, dynamically changing information spaces. Visual analytics research concentrates on support for perceptual and cognitive operations that enable users to detect the expected and discover the unexpected in complex information space. Technologies resulting from visual analytics find their application in almost all fields, but are being driven by critical needs and funding in biology and national security. Visualization techniques The following are examples of some common visualization techniques: Constructing isosurfaces direct volume rendering Streamlines, streaklines, and pathlines table, matrix charts pie chart, bar chart, histogram, function graph, scatter plot, etc. graphs tree diagram, network diagram, flowchart, existential graph, etc. Maps parallel coordinates - a visualization technique aimed at multidimensional data treemap - a visualization technique aimed at hierarchical data Venn diagram Euler diagram Chernoff face Hyperbolic trees Related research areas Statistics, statistical package, multivariate statistics Forecasting, technical analysis Data Mining, also known as knowledge-discovery in databases KDD GeoVisualization, short for Geographic Visualization Graph Drawing Scientific modeling Cave Automatic Virtual Environment Morphological Modeling Information graphics Knowledge management Knowledge transfer Concept maps Morphological analysis Formal concept analysis Conceptual graphs See also Information graphics The Information visualization reference model for construction of Information Visualization systems. Similar to the 'Model view controller' software engineering architectural pattern. Music visualization Statistical graphics Configurator visualization Graph drawing Graphic design Edward Tufte Human-computer interaction Rendering computer graphics Illustration Imaging New Epoch Notation Painting Representation arts Representation psychology Many Eyes Public, web-based visualizations Prefuse Java Toolkit for Interactive Information Visualization Starlight Info Vis System, RD 100 winner VisIt, RD 100 winner VisTrails ParaView Tulip C++/Qt framework for navigation, graph drawing, clustering and ion of huge graphs. References ^ Burkhard and Meier, 2004, ^ Thomas, JJ and Cook, KA, 2005 This article or section is missing citations or needs footnotes. Using inline citations helps guard against copyright violations and factual inaccuracies. January 2008 Further reading Books Visualization Handbook Hardcover by Charles D. Hansen, Chris Johnson, Academic Press June, 2004. The Visualization Toolkit, Third ion Paperback by Will Schroeder, Ken Martin, Bill Lorensen August 2004. Thomas, James J, and Cook, Kristin A, Ed. 2005, Illuminating the Path: The Research and Development Agenda for Visual Analytics, Los Alamitos, CA.: IEEE Computer Society, http://nvac.pnl.gov/agenda.stm Globus, Al. Eric Raible. Fourteen Ways to Say Nothing With Scientific Visualization. Computer. July 1994. pp. 86-88 Kravetz, Stephen A. and David Womble. ed. Introduction to Bioinformatics. Totowa, N.J. Humana Press, 2003. Nielson, Gregory M. ed. Computer. Vol. 22, No. 8, Aug 1989. Special issue on scientific visualization. Edward R. Tufte 1992. The Visual Display of Quantitative Information Edward R. Tufte 1990. Envisioning Information. Edward R. Tufte 1997. Visual Explanations: Images and Quantities, Evidence and Narrative. Wong, Pak Chung. R. Daniel Bergeron. 30 years of Multidimensional Multivariate Visualization. Scientific Visualization Overviews Methodologies and Techniques. IEEE Computer Society Press, 1997. Information Visualization Papers Bederson, Benjamin B., Shneiderman, Ben. The Craft of Information Visualization: Readings and Reflections, Morgan Kaufmann, 2003, ISBN 1-55860-915-6. Mackinlay, Jock D. 1999. Readings in information visualization: using vision to think, Card, S. K., Ben Shneiderman eds., Morgan Kaufmann Publishers Inc, 686. ISBN 1-55860-533-9. Cleveland, William S. 1993. Visualizing Data. Cleveland, William S. 1994. The Elements of Graphing Data. Schirra, Joerg R.J. 2005. Foundation of Computational Visualistics, Wiesbaden: DUV ISBN 3-8350-6015-5. Spence, Robert Information Visualization: Design for Interaction 2nd ion, Prentice Hall, 2007, ISBN 0-132-06550-9. Colin Ware 2000. Information Visualization: Perception for design. Andrew Vande Moere 2008. Form Follows Data. Wilkinson, Leland. The Grammar of Graphics, Springer ISBN 0-387-24544-8 1 External links The external links in this article may not follow 's content policies or guidelines. Please improve this article by removing excessive or inappropriate external links. Amer. Soc. of Information Science and Technology ASIST SIGVIS: Special Interest Group in Visualization Information and Sound IEEE Visualization Conference National Institute of Standards and Technology Second Life Data Visualization Data visualization using Second Life Second Life Chemistry Using Second Life to visualize chemistry concepts Scientific Visualization Tutorials, Georgia Tech Scientific Visualization Studio NASA Many Eyes Free IBM site where users can experiment with 15 types of visualizations Visual Complexity A visual compendium of techniques for displaying networks Graphic Organizers Index Overview of Various Visualization Methods and Tools Periodic Table of Visualization Methods Educational Particle Image Velocimetry e-PIV - resources and demonstrations Duke University Friday Forum - Visualization Engineering Seminars Information visualization InfoVis-Wiki.net - Wiki about Information Visualization InstantAtlas.com - Data Visualization Software for GIS Specialists and Information Analysts Information Aesthetics: Data visualization visual communication, a continuously updated collection of infoviz applications and software http://vam.anest.ufl.edu - A free transparent reality simulation of an anesthesia machine that uses information visualization, including sound and color Information Visualization at the Open Directory Project VisualComplexity.com - A visual exploration on mapping complex networks itself can be visualized e.g. history flow, ClusterBall, Pathway, WikiViz, WikiCharts, Emergent Mosaic, and Top 50. walk2web.com - a visual internet explorer NovoSpark Visualizer - an advanced visualization tool that enables qualitative analysis of multidimensional data through the exploration of a graphical image. Educational Particle Image Velocimetry e-PIV - resources and demonstrations tree hierarchy of categories and pages under Computing Google Charts -Examples of using free Google API Semi-Structured and Unstructured Information Systems: Information Visualization Summary Review Book Chapter. Knowledge visualization Third International Symposium on Knowledge and Argument visualization Research Symposium Visualization Summit The chair for Information Architecture organizes the first int. Visualization Summit on 3rd of July 2007 Software for information organisation A list of software for information organisation InfoVis:Wiki Information Visualization Wiki Ray Uzwyshyn Human Knowledge Seeking and Information Visualization 2006 Samuel Lazerow Thompson ISI Memorial Lecture Educational Particle Image Velocimetry e-PIV - resources and demonstrations Open Mind Map Library - Point to share knowledge: free library of mind maps. Visual analytics IEEE Visual Analytics Science and Technology VAST Symposium National Visualization and Analytics Center NVAC Educational Particle Image Velocimetry e-PIV - resources and demonstrations v d e Visualization Fields Creative visualization · Chemical imaging · Crime mapping · Data visualization · Educational visualization · Flow visualization · Geovisualization · Information visualization · Medical imaging · Music visualization · Product visualization · Scientific visualization · Software visualization · Volume visualization Image types Chart · Computer graphics · Diagram · Graph of a function · Ideogram · Illustration · Information graphics · Map · Photograph · Pictogram · Statistical graphics · Table · Technical drawing Experts Jacques Bertin · Stuart Card · Thomas A. DeFanti · Michael Friendly · Nigel Holmes · Jock D. Mackinlay · Michael Maltz · Bruce H. McCormick · Charles Joseph Minard · Otto Neurath · William Playfair · Clifford A. Pickover · Arthur H. Robinson · Lawrence J. Rosenblum · Adolphe Quetelet · George G. Robertson · Ben Shneiderman · Edward Tufte Related topics Cartography · Computer graphics · Graph drawing · Graphic design · Imaging science · Information science · Mental visualisation · Neuroimaging · Spatial analysis · Visual analytics · Visual communication · Visual perception Retrieved from http://en..org/wiki/Visualization_computer_graphics#Educational_visualization Categories: Infographics | Visualization graphic | Computational science | Computer graphics | Scientific modelingHidden categories: Articles to be merged since June 2008 | Articles with statements since January 2008 | All articles with statements | external links cleanup Views Article Discussion this page History Personal tools Log in / create account Navigation Main page Contents Featured content Current events Random article Search Go Search Interaction Community portal Recent changes Contact Donate to Help Toolbox What links here Related changes Upload file Special pages Printable version Permanent link Cite this page Languages Deutsch Lietuvių Nederlands Español Česky This page was last modified on 2 September 2008, at 20:30
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