Authors: Aborisade D. O. And Oyelade O. J

Global Journal of Computer Science and Technology

 

Abstract

The HierarchyMap describes a novel approach for Treemap Visualization method for  representing large volume of hierarchical information on a 2-dimensional space. HierarchyMap algorithm is a new ordered treemap algorithm.

Results of the implementation of HierarchyMap treemap algorithm show that it is capable of representing several thousands of hierarchical data on 2-dimensional space on a computer and Portable Device Application (PDA) screens while still maintaining the qualities found in existing treemap algorithms such as readability, low aspect ratio, reduced run time, and reduced number of thin rectangles. The HierarchyMap treemap algorithm is implemented in Java programming language and tested with dataset of Departmental and Faculty systems of Universities, Family trees, Plant and Animal taxonomy structures.

 

Keywords – Treemaps, Aspect ratio, HierarchyMap, Hierarchical data, Tree-like structure, Node.