data viz · hierarchical
TuxChartSunburst
Two-ring radial breakdown — inner ring is top-level groups, outer ring is children with stepped opacity. Use when the audience needs to feel the radial structure of a program (budget, portfolio, capacity inventory).
Sunburst is a sister to
Sunburst is a sister to
TuxTreemap. Treemap is better when comparative size of children matters (rectangles encode area, easier to read for tight ratios). Sunburst is better when the radial structure is the story. For ranked lists, prefer TuxChartBar — bars are far easier to read than any hierarchical chart. Two rings is the maximum that stays readable. flagship · two-ring with legend
Program portfolio
Inner ring: the four MIP investment categories. Outer ring: each category's spend mix. Center carries the program total in display-grade tabular numerals. The right-side table lists every child with its share — so the precise number is always recoverable, not estimated off arc length.
Exhibit 12.01
MIP 2025 program portfolio · $2.08B
Capacity$880M · 42%
New mainlanes$480M
Frontage rebuild$220M
HOV / managed lanes$180M
Preservation$670M · 32%
Pavement$320M
Bridge$240M
Drainage$110M
Safety$330M · 16%
Intersection$175M
Roadside$95M
Pedestrian$60M
Operations$200M · 10%
ITS$90M
Signals$60M
Incident mgmt$50M
bare · no legend
Tight-layout variant
For dashboard tiles or composed exhibits where the legend would crowd the surface, set :show-legend="false". Each arc carries an SVG <title> tooltip with label · value · share, so the data is still accessible — just not laid out beside the chart.