Exploring curved schematization

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

3 Citaten (Scopus)
77 Downloads (Pure)


Hand-drawn schematized maps traditionally make extensive use of curves. However, there are few automated approaches for curved schematization most previous work focuses on straight lines. We present a new algorithm for area-preserving curved schematization of geographic outlines. Our algorithm converts a simple polygon into a schematic crossing-free representation using circular arcs. We use two basic operations to iteratively replace consecutive arcs until the desired complexity is reached. Our results are not restricted to arcs ending at input vertices. The method can be steered towards different degrees of 'curviness': we can encourage or discourage the use of arcs with a large central angle via a single parameter. Our method creates visually pleasing results even for very low output complexities. We conducted an online user study investigating the effectiveness of the curved schematizations compared to straight-line schematizations of equivalent complexity. While the visual complexity of the curved shapes was judged higher than those using straight lines, users generally preferred curved schematizations. We observed that curves significantly improved the ability of users to match schematized shapes of moderate complexity to their unschematized equivalents.
Originele taal-2Engels
Titel7th IEEE Pacific Visualization Symposium (PacificVis)
Plaats van productiePiscataway
UitgeverijIEEE Computer Society
ISBN van geprinte versie978-1-4799-2873-6
StatusGepubliceerd - 2014
Evenement7th IEEE Pacific Visualization Symposium (PacificVis 2014) - Yokohama, Japan
Duur: 4 mrt 20147 mrt 2014
Congresnummer: 7


Congres7th IEEE Pacific Visualization Symposium (PacificVis 2014)
Verkorte titelPacificVis 2014
Ander7th IEEE Pacific Visualization Symposium
Internet adres

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