Motion design craft / Prompt

Prompt: grow comparison bars from a shared baseline

Use this prompt when the viewer needs to compare supplied quantities. Establish the scale first, then reveal bars without changing what their lengths mean.

By AnimroUpdated 2 min readAI-assisted · independently agent-reviewed

Who this is for: Motion producers writing precise creative and educational briefs.

What to prepare

  • Category-value pairs and unit
  • Common period and inclusion definition
  • Source or explicit fictional-data status

Copyable creative brief

An authored planning example. Replace illustrative details with your approved product facts and assets.

Plan a 30-second comparison graphic using CATEGORY_VALUES. Show QUESTION, UNIT, PERIOD and DATA_STATUS before or with the marks. Use a shared zero baseline and a fixed numeric domain that covers the complete supplied comparison. Establish readable ticks and category labels before growing the bars. Do not rescale the axis during the reveal.

Grow each bar from the same baseline to its supplied value. Keep category names attached to the correct marks and place exact values at usable positions. Preserve category order during growth; if a later ranking reorder is requested, make it a separate labeled event. Do not invent intermediate observations or describe the animation as recorded change over time.

Hold all completed bars together before highlighting the observation that answers QUESTION. Keep source and scope visible. Use redundant labels so color is not the only identifier. End with the full comparison and its qualification. If a supplied negative value or incompatible unit changes the required chart structure, flag that issue and revise the chart plan explicitly.

Make it your own

CATEGORY_VALUES
Supply named quantities with matching definitions.
QUESTION
State the comparison the chart should answer.
AXIS_DOMAIN
Set one approved scale for the full sequence.
DATA_STATUS
Provide source details or an explicit illustrative-data label.
UNIT
Supply the shared unit counted or measured by every bar; do not combine incompatible units.
PERIOD
State the common observation period and preserve it beside the comparison.

Use the common-baseline example

Illustrative workshop values North 18, East 12 and West 24 pieces fit a fixed 0–24 scale. Reveal names first, then lengths, and finish with all three values. The conclusion can identify West as the largest count in this fictional set; it cannot infer quality or efficiency.

Adapt the arrangement

Horizontal bars suit longer category names in this study. For a narrow frame, allow more vertical space instead of abbreviating names ambiguously. If values have different units, do not place them on one shared scale merely because the visual comparison looks attractive.

Correct exaggerated growth

If earlier bars shrink when a larger value arrives, lock the axis domain. If the baseline disappears during a crop, restore it or add an explicit reference view. If the selected bar becomes much wider as emphasis, ensure width does not accidentally look like a second data encoding.

Review checklist

  • All bars use the same fixed scale and baseline.
  • Category labels stay with their quantities.
  • Animation is not mistaken for observed time change.
  • The final view retains all comparison values.
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