Visual Variable: Difference between revisions
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Revision as of 12:10, 9 November 2007
The concept of visual variables was introduced by Bertin in 1983. The list of visual variables was later expanded by Mackinlay. Sometimes visual variables are also called visual attributes.
The list was further expanded by several later publications. Most of them are also grouping the visual variables, e.g. combining length, area and repetition to shape or breaking down position in the three dimensions of space and one time dimension.
The process of mapping data to visual variables is called visual mapping.
Visual Variables based on Mackinlay
Sorted by Accuracy for Quantitive Tasks
Position
Length
Angle
Slope
Area
Volume
Density
Color Saturation
Sorted by Accuracy for Ordinal Tasks
Position
Density
Color Saturation
Color Hue
Texture
Connection
Containment
Length
Angle
Slope
Area
Volume
Sorted by Accuracy for Nominal Tasks
Position
Color Hue
Texture
Connection
Containment
Density
Color Saturation
Shape
Length
Angle
Slope
Area
Volume