Template-based Treemaps to Preserve Spatial Constraints

Natallia Kokash, Bernard de Bono, Joost Kok

2014

Abstract

Treemapping is a method for displaying hierarchical data using nested rectangles. Each branch of the tree is given its rectangle, which then is tiled with smaller rectangles representing sub-branches. A node’s shape has an area proportional to a specified dimension of the data. To create a treemap, one must define a tiling algorithm, i.e., a way to divide a rectangle into sub-rectangles of specified areas. There are several problems with existing tiling algorithms: (i) they allow tiles to shift when the main window or some of the tiles are resized affecting the user perception of the information; (ii) they do not allow users to place selected elements into desired positions w.r.t. each other. In this paper, we present a method for creating treemaps with customized layouts. The method is based on reusable templates and supports zooming into specific areas of the treemap without affecting its initial layout. We illustrate the use of template-based treemaps to the visualization of biomedical data. Furthermore, we present an algorithm for automated generation of layouts satisfying positional constraints for a particular class of constraints.

Paper Citation

in Harvard Style

Kokash N., de Bono B. and Kok J. (2014). Template-based Treemaps to Preserve Spatial Constraints . In Proceedings of the 5th International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2014) ISBN 978-989-758-005-5, pages 39-49. DOI: 10.5220/0004684900390049

in Bibtex Style

@conference{ivapp14,
author={Natallia Kokash and Bernard de Bono and Joost Kok},
title={Template-based Treemaps to Preserve Spatial Constraints},
booktitle={Proceedings of the 5th International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2014)},
year={2014},
pages={39-49},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004684900390049},
isbn={978-989-758-005-5},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Information Visualization Theory and Applications - Volume 1: IVAPP, (VISIGRAPP 2014)
TI - Template-based Treemaps to Preserve Spatial Constraints
SN - 978-989-758-005-5
AU - Kokash N.
AU - de Bono B.
AU - Kok J.
PY - 2014
SP - 39
EP - 49
DO - 10.5220/0004684900390049