shieber/Biblio/Papers/layout-tn.pdf · ! "$#% &('*)+ , - &. 0/!#+ 1 2435 768 19 ;:0 -?A@&( B - C;...

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Syntactic Validity Perceptual Organization Aesthetic Optimality

Worse Better

Node Overlap

Node/Link Intersection

Alignment

Symmetry

Worse Better

Diagram Area

Number of Link Crossings

Worse Better

Zoning Evenness of Link Lengths

Sum of Link LengthsT-Shape

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(n1, {n2, n3, n4}) ∈ T-SHAPEn1

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{n1, n2, n3, n4} ∈ ZONES

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({n1, n2, n3, n4} , vertical ) ∈ SYM

({n1, n2, n3, n4} , horizontal ) ∈ SYM

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