[sunburst-basic] Basic Sunburst Chart

[MarkusNeusinger]

A sunburst/multilevel pie chart showing hierarchical data as concentric rings.

Use Case: Visualize hierarchical structures like file systems, organizational charts, budget breakdowns, or taxonomies with proportional sizing.

Data: Hierarchical categories with values (parent-child relationships).

Features:

• Concentric rings representing hierarchy levels
• Segment sizes proportional to values
• Clear labels for major segments
• Distinct colors for different branches

[claude]

✅ Spec ID: sunburst-basic

Rationale: A sunburst chart is a distinct radial hierarchical visualization showing data as concentric rings, different from existing treemaps (rectangles) and pie charts (single-level).

Creating specification now.

[github-actions]

✅ Specification Ready: sunburst-basic

PR: #825

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specification.md

sunburst-basic: Basic Sunburst Chart

Description

A sunburst chart displays hierarchical data as concentric rings, where each ring represents a level in the hierarchy. Inner rings show parent categories while outer rings show their children, with segment angles proportional to values. This radial visualization excels at revealing hierarchical structures and part-to-whole relationships across multiple levels simultaneously.

Applications

• File system visualization showing directory sizes and nested folder structures
• Organizational budget breakdown by department, team, and project
• Taxonomy or classification hierarchies with proportional representation
• Website navigation paths showing user flow through page hierarchies

Data

• level_1 (string) - root/parent category (innermost ring)
• level_2 (string) - child category (second ring)
• level_3 (string) - optional grandchild category (outer ring)
• value (numeric) - size/magnitude determining segment angle
• Size: 10-50 leaf nodes across 2-4 hierarchy levels

Notes

• Use consistent colors within each branch to show relationships
• Label major segments; smaller segments may show labels on hover/interaction
• Maintain clear visual separation between hierarchy levels
• Inner segments should visually encompass their children's angular span

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Next: Add approved label to merge this specification to main.

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🤖 spec-create workflow

[github-actions]

🚀 Specification Merged!

Specification: sunburst-basic
PR: #825 (merged)

The specification is now in main and synced to PostgreSQL.

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Next: Add generate:{library} labels to start generating implementations.

Available libraries: matplotlib, seaborn, plotly, bokeh, altair, plotnine, pygal, highcharts, letsplot

Or use workflow dispatch for bulk operations.

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🤖 spec-create workflow