June 2026
Intermediate to advanced
582 pages
16h 16m
English
Content preview from Learn D3.js - Second Edition
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16
Creating Partitions and Enclosures
In the last chapter, we explored hierarchical datasets using trees and dendrograms. This chapter focuses on representing hierarchies with partitions and enclosures—topologies that efficiently highlight containment and proportion without relying on lines to show child-parent relationships.
Partitions use rectangles and arcs to represent hierarchies as a stack of nodes with the root at its base or center. Child nodes branch upward, downward, or outward as segments from their parents. Common partition types include icicle or flame charts, as well as sunburst diagrams.
Enclosures represent a tree as a circle or box that contains all its descendants. In treemaps, descendants appear as nested rectangles, whereas ...
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