Information visualisationData ink design principles
20 April 2015
Erik DuvalDept. Computerwetenschappen, KULeuvenhttp://erikduval.wordpress.com & @ErikDuval
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Tufte’s principles
• Above all else show the data
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• Data ink: “non-erasable core of a graphic...”(Tufte, 1983)
• Data-ink ratio
= data-ink / total ink
= Proportion of a graphic’s ink devoted to the non-redundant display of data-information.
= 1.0 – proportion of graphic that can be erased without the loss of information
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Tufte’s principles
• Maximise the data-ink ratio, within reason
• Erase non-data ink, within reason
• Erase redundant data-ink
• Revise and edit
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5 source: Joey Cherdarchuk
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<0.05
source: Joey Cherdarchuk
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“Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away”
Antoine de Saint-Exupery
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?@ErikDuval
h.p://erikduval.wordpress.com31
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