using 3D and visualising 3D

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using 3Dand visualising 3D
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sculptural window elements

• highlighting
• drop shadows
• may help distinguish features figure ground
  separation e.g. X Motif everything in
  sculpture!
• improve affordances buttons are for pushing

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3D data visualisation

• arbitrary parametrisation
• e.g. height ? weight ? lifespan
• build on 2D features
• e.g. country ? car production
• N.B. volume or height!
• map to real 3D world features
• e.g. virtual wind tunnel

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3D graphs for non 3D data

• 3D histograms etc.
• may be misleading (3D pie charts!)
• hard to see 3D for static pictures
• use colour as redundant cue
• use movement
• allow user controlled rotation etc.

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real 3 D data

• scalar data
• temperature, density, pressure
• vector data
• wind flows, electromagnetic fields

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seeing inside?

• Problem - we only see the surface
• Solution - reduce density of data
• points OK (stars) - show samples only
• translucence
• slices
• lines

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seeing inside - use interaction!

• move in the environment
• look around the back!
• manipulate things
• pick up, open up
• control cuts, density etc.
• e.g. virtual human
• insert markers
• virtual bubbles, smoke

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information visualisation

• abstract data
• use 3D to increase virtual space
• humans understand physical world

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Hierarchical data
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Temporal fusion

• moving changing images
• successive images
• parallel changes

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