Adjacency-preserving spatial treemaps

Rectangular layouts, subdivisions of an outer rectangle into smaller rectangles, have many applications in visualizing spatial information, for instance in rectangular cartograms in which the rectangles represent geographic or political regions. A spatial treemap is a rectangular layout with a hiera...

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Veröffentlicht in:Journal of computational geometry Jg. 7; H. 1
Hauptverfasser: Buchin, Kevin, Eppstein, David, Löffler, Maarten, Nöllenburg, Martin, Silveira, Rodrigo Ignacio
Format: Verlag Journal Article
Sprache:Englisch
Veröffentlicht: Carleton University 01.01.2016
Schlagworte:
68 Computer science
68U Computing methodologies and applications
Classificació AMS
Computing Methodologies
Informàtica teòrica
Matemàtica aplicada a les ciències
Matemàtiques i estadística
Àrees temàtiques de la UPC
ISSN:1920-180X, 1920-180X
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:Rectangular layouts, subdivisions of an outer rectangle into smaller rectangles, have many applications in visualizing spatial information, for instance in rectangular cartograms in which the rectangles represent geographic or political regions. A spatial treemap is a rectangular layout with a hierarchical structure: the outer rectangle is subdivided into rectangles that are in turn subdivided into smaller rectangles. We describe algorithms for transforming a rectangular layout that does not have this hierarchical structure, together with a clustering of the rectangles of the layout, into a spatial treemap that respects the clustering and also respects to the extent possible the adjacencies of the input layout. Peer Reviewed
ISSN:1920-180X
1920-180X
DOI:10.20382/jocg.v7i1a6