∞ forever components

Micro Data-Viz

Live Line Sweep

A glowing cyan area line chart scrolls a live sine-plus-noise time-series across a faint grid, with a white head dot marking the latest value.

canvaslight complexitymoderate motion

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Live demo — the real component, running in a sandbox. One self-contained HTML file, zero dependencies. Open it on the canvas →
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When to use it

Dashboard hero sections, live-data widgets, terminal-style monitoring UI backgrounds, or any dark-theme data-viz accent.

When not to

Light backgrounds (hardcoded dark navy). Contexts where users need to read real data — values are synthetic sine noise, not wired to real data.

Working with an AI agent

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

Change COL to '#ff6b6b' for a red alert theme, reduce M to 60 for fewer data points, and increase shadowBlur to 16 for a stronger glow. 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

  • accent color (COL='#4dd1ff')
  • data buffer length (M=120)
  • phase step speed (phase+=0.12)
  • noise amplitude (0.12 factor)
  • update interval (step=90ms)
  • fill gradient opacity stops ('44'/'00')
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard (disables noise, freezes update)
  • visibilitychange pause
  • DPR-aware canvas sizing
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Data is synthetic (sine+noise) — must replace next() to wire real data
  • Background color hardcoded in CSS; must edit to change dark navy
  • Grid always shows 4 horizontal lines with no labels or axis values

line-chartdata-vizcanvasglowtime-seriesambientmonospace

More Micro Data-Viz components

  • Bar Grow + ReshuffleSeven rounded gradient bars ease to new random heights every 1.6s with glowing cap dots. Click triggers an immediate reshuffle.
  • Donut Ring ProgressOlive-to-terracotta gradient donut ring eases its fill to random targets with a leading dot and large centered percentage readout. Tap to jump to a new value.
  • Sparkline Moving DotA green sparkline traces itself across a faint ghost path, led by a haloed white dot; on completion it regenerates a new random 28-point series.
  • Radial Gauge NeedleSemicircular gauge on dark amber background with green-yellow-red arc segments; a glowing white needle sweeps smoothly via sine wave with a live 0–100…
  • Heatmap Ripple12x6 grid of rounded cells colored via a magma ramp, with a sine-wave ripple emanating from a point that orbits and follows the cursor.
  • Odometer Count-UpSix-digit mechanical odometer with rolling digit reels easing toward a random REQUESTS/SEC target; tap/click to randomize a new target value.