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Activity terrain
Revenue globe
Customer galaxy
Semantic zoom
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What’s new81 new
BlocksActivity terrain

Activity terrainPro

A 3D terrain of hourly activity you can orbit, zoom, fly into and flatten into a heatmap.

Live block · sample data

The shape of your week

Hourly sessions, deploys and errors for Sep 14 to 20, 2026, in workspace time.

FewerMore

Drag to orbit, pinch to zoom, click a bar to fly in.Swipe sideways to orbit, tap a bar to fly in. Arrow keys move between hours and days, Enter focuses a bar, Shift with arrow keys orbits, plus and minus zoom, Escape clears.

Sessions this week

231,253001234567890012345678900123456789,001234567890012345678900123456789

+8.6%vs last week

Peak hours

Busiest day

Wednesday

44,0190012345678900123456789,001234567890012345678900123456789 sessions, 70.8%0012345678900123456789.00123456789% in working hours

Sessions per hour, Sep 14 to 20, 2026, workspace time
Day00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Monday1861831891831841872514901,3052,8273,9644,1193,6663,6354,2434,2453,2002,1061,112800937960698360
Tuesday1932061932052022062595111,3853,0074,5374,1673,8564,0814,4994,5243,5252,3491,2288989671,106748429
Wednesday2181982002172022272625321,5513,2374,2164,5453,6273,8434,6944,7453,6652,2941,1989741,0961,113766399
Thursday1971912011932052122624761,4473,0384,1364,1963,4383,6714,6794,4423,2262,2251,1899139691,055693398
Friday1761771641821761692314001,1832,6963,6203,8273,1723,2893,7833,9723,0361,8561,102793854856606364
Saturday1621581721721641862102914005747119091,0071,1561,067950752619615737832794614410
Sunday1451451501521511681892413394876228399701,015866761626569573659744663522329

When to use

  • Analytics or operations pages showing when a product is busiest across a week.
  • Showcase dashboards where a 3D view of a 7 by 24 grid adds impact, with a flat heatmap fallback.

When not to use

  • Use activity-heatmap for a plain 2D grid that is easier to read.
  • Use bar-chart for totals by day or hour.

Installation

Pro source and install commands unlock with a Pro plan.

Usage

Use this on an analytics or operations page to show when a product is busiest. Replace the seeded week in terrain-data.ts with hourly counts from your events warehouse; the camera, springs and summaries follow the data.

example.tsx
1import { ActivityTerrain } from "@/components/arc/blocks/activity-terrain/activity-terrain";2 3export default function UsagePatterns() {4  return (5    <section>6      <ActivityTerrain />7    </section>8  );9}

API reference

ActivityTerrain

A canvas 3D terrain of hourly activity across a week that can orbit, zoom, fly to a cell and flatten into a heatmap. Takes no props; metrics and the hourly grid are sample data in terrain-data.ts.

No props.

Keyboard interactions

Arrow keys
Moves the highlighted day and hour.
Shift+Arrow keys
Orbits the camera.
HomeorEnd
Jumps to the first or last hour of the day.
+or-
Zooms in or out.
EnterorSpace
Flies to the highlighted hour.
Escape
Returns to the whole week, then clears the highlight.

Accessibility

  • The stage is a focusable group with a keyboard hint, and the canvas has a text summary as its label.
  • Peak hours are aria-pressed buttons that fly to or leave the hour.
  • A polite live region reads the highlighted hour's value.

Motion

  • Columns rise in a wave on load and when the metric changes; camera moves use spring physics with momentum on drag.
  • Flattening to a heatmap springs the camera to a top view.
  • The engine watches prefers-reduced-motion and snaps the camera and heights with no wave.

Responsive behavior

  • Below an 880px container the stats move under the plot; below 560px the plot is 280px tall and the camera starts from a steeper angle.
  • Touch devices swipe sideways to orbit while vertical swipes scroll the page, and the hint text switches for coarse pointers.
  • Two-finger pinch zooms on touch.

Performance

  • Draws on a 2D canvas with devicePixelRatio capped at 2.
  • The requestAnimationFrame loop pauses offscreen via IntersectionObserver and in hidden tabs, and idles when nothing moves.

Notes for AI

Give your coding assistant the Markdown reference instead of screenshots.

  • Use on an analytics or operations page to show when a product is busiest across a week.
  • Replace METRICS in terrain-data.ts with hourly counts from your events warehouse; keep the 7 by 24 shape.
/components/blocks/activity-terrain/markdown

The full library index for assistants is at /llms.txt.

Related

Activity heatmapComponentSee a year of activity at a glance, one square per day.Revenue globeProBlockA dotted globe where live payments arc home to headquarters, with a replayable day.Customer galaxyProBlock2,400 accounts as a drifting galaxy that spirals into clusters by plan, region or health.Segmented controlComponentSwitch between a small set of related views.
PreviousMetric explorerNextRevenue globe
Arc · 76 block pagesllms.txt

On this page

  • Preview
  • When to use
  • When not to use
  • Installation
  • Usage
  • API reference
  • Keyboard
  • Accessibility
  • Motion
  • Responsive behavior
  • Performance
  • Notes for AI
  • Related
View as Markdown