Concept / Curved line

Curved line

A line that changes direction gradually to make contours or flow

A line that changes direction gradually.

A phrase to start with

Makes lines and contours curve smoothly.

Appearance and effects

Curvature creates contour and flow.

Visual traits

  • smooth directional change
  • curved contours

Expected changes

  • Corners are more likely to reduce
  • Flow is more likely to appear

Five examples

1 — Medium-sized dog
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2 — Cat
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3 — Teenage boy
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4 — Unoccupied interior
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5 — Valley with a river and mountain ranges
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Meaning and scope

Definition

A curved line changes direction smoothly without a corner and makes contour or flow. Straightness, line weight, material, lighting, and damage remain separate choices.

In more detail

It adjusts edges and visual flow through curvature. It does not specify surface texture or spatial depth.

Includes

  • smoothly curving contours or lines

Excludes

  • straight lines
  • weight
  • material
  • lighting
  • or damage

What this does not imply

  • Straight lines
  • thick or thin weight
  • material
  • lighting
  • or damage

Variability

Because the provisional reference is not direct evidence for this candidate, root source review is required.

Usage and adjustments

Usage

  • Specify curvature only

Distinguish similar expressions

  • Specify straightness and weight separately

Typical uses

  • Soften contours and flow

Possible failure modes

  • Too many straight lines remain
  • Forms become hard to read

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