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Origins

Origins. Conventions presume a chain of rhetorical acts that must begin somewhere, but often hard to pinpoint where. We can locate moments where conventions are beginning to take shape. T.

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Origins

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  1. Origins • Conventions presume a chain of rhetorical acts that must begin somewhere, but often hard to pinpoint where

  2. We can locate moments where conventionsare beginning to take shape

  3. T Plot’s chart shows key features of present-day line or scatter charts, even though meteorology has developed its own modern visual conventions How we read barometric pressure now .

  4. Visual conventions change as rhetorical purposes and production technologies evolve • Rockefeller Foundation Annual Report 1929, 1957, 1985, 2009 • Computer interfaces through the decades

  5. New disciplines need new conventions • Depending on the type of knowledge that requires visual representation, a discipline might invent new conventions or appropriate existing conventions from another field. • As disciplines mature, conventions are likely to become more abstract, more specialized and more firmly and formally codified • Conventions unfold in 3 modes – adaptation, transplantation, codification

  6. Adaptation • Mechanical engineering (drafting) starts with conventions from architecture

  7. Representations of objects become more abstract and isolated from context of use as mechanical engineering becomes a more specialized and sophisticated field.

  8. Until we get this….

  9. Transplantation Conventions branch off from other conventions in brand new directions http://www.epa.gov/ttn/naaqs/ozone/areas/wind.htm http://www.visifire.com/silverlight_radar_polar_charts_gallery.php

  10. http://www.epa.gov/ttn/naaqs/ozone/areas/wind.htmhttp://www.visifire.com/silverlight_radar_polar_charts_gallery.phphttp://www.epa.gov/ttn/naaqs/ozone/areas/wind.htmhttp://www.visifire.com/silverlight_radar_polar_charts_gallery.php

  11. Codification • Informal and indirect – imitation • Formal and direct • NISO: Information on Spines • AIA: Architectural Graphic Standards • IEEE: Visual Identity Standards • New Jersey DOP: Geologic Rock Symbols

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