"Imagination or visualization, and in particular the use of diagrams, has a crucial part to play in scientific investigation." - Rene.

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Presentation transcript:

"Imagination or visualization, and in particular the use of diagrams, has a crucial part to play in scientific investigation." - Rene Descartes, 1637

Scientific Data Visualization

What is scientific visualization? Exploring data graphically to gain insight and a deeper understanding of the information it represents

History of Visualization Techniques... Coordinate Systems: 1137: China, use of cartesian coordinates to show cities and coastline features in a latitude longitude grid 1603: Johann Beyer plotted star positions based on observations of Danish astronomer, Tycho Brayhe. 1637: Rene Descartes reintroduced the cartesian coordinate system into mathematics

Scatter Plots: 1855: Dr. John Snow plotted the location of homes of cholera victims

Line Charts: Line Charts: 1785: William Playfair published charts 10th Century: illustration of the inclination of the planetary orbits as a function of time Line Charts: 1785: William Playfair published charts describing various economical phenomena Line Charts:

Contour Maps: 1782: Map by Marcellin Du Carla suggests how to illustrate height using isolines. 1748: Contour lines for zero elevation appeared in the Carte Geometrique de la France. The use of contour lines for elevation became common use in the British Ordinance Survey Act of 1841.

Contour Maps: 1817: Alexander von Humboldt created isothermal charts to show geographic distribution of temperature.

Height Maps: 1879: Luigi Perozzo plotted population as height for the Swedish census 1750-1785

Streamlines, Arrow Plots, Particle Traces: 1686: Edmond Halley produced a meteorological chart, a map of the world showing the prevailing winds with arrow plots.

Volume Rendering: 1896: Elihu Thompson generation of stereo X-rays

Volume Rendering: 1957: Bang and Bang achieve three dimensional visualization of specimens. Slices were photographed in an electron microscope and images were traced onto acetate sheets, manually stacked up with separators.