∞ forever components

Micro Data-Viz

Heatmap Ripple

12x6 grid of rounded cells colored via a magma ramp, with a sine-wave ripple emanating from a point that orbits and follows the cursor.

canvasmedium complexitymoderate motionpointer

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When to use it

Data dashboard accents, ambient background panels, or any context needing a living heatmap visualization with pointer interactivity.

When not to

Contexts requiring actual data binding — values are procedural, not driven by real datasets. Avoid on low-contrast light backgrounds (dark canvas hardcoded).

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change COLS to 16 and ROWS to 8 to increase grid density, then shift the magma ramp's hottest stop from [255,230,150] to [255,255,255] for a white-hot peak. Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • grid dimensions (COLS=12, ROWS=6)
  • magma color stops (stops array)
  • ripple speed (phase += 0.05)
  • orbit amplitude (0.32, 0.3)
  • ripple frequency (d*9)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard (reduce flag stops phase advance and orbit)
  • visibilitychange pause
  • DPR-aware canvas sizing
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Light re-theme via the [data-theme=light] token block; catalog bg/accent describe the dark default
  • Ripple is purely decorative, not data-driven

heatmapgridripplecanvasdata-vizcolor-ramppointer

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