Contour-led form language

The outer shape reads clearly through line flow.

Visual traits

• Clear outline
• Line variation

Expected changes

• Outer shapes are more likely to be clear
• Line weight is more likely to vary

Definition

Builds form with the flow, weight, and continuity of contour lines as the main cues. Representational level, subject, drawing medium, and composition are separate choices.

In more detail

The outer shape reads clearly, and line variation carries much of the form's character. Color and amount of shading can be adjusted separately.

Includes

• Form construction led by contour lines

Excludes

• Form made only through shading
• A particular art style or representational level
• Composition or medium

What this does not imply

• A particular art style, subject, or representational level
• Amount of color or shading
• A particular medium

Variability

Contour strength can vary with the subject and desired legibility.

Usage

• Specify only form construction
• Specify subject and representational level separately

Distinguish similar expressions

• Distinguish it from merely specifying line-art medium

Typical uses

• Make forms easy to read
• Give form character through line flow

Possible failure modes

• Broken contours make form unclear
• Uniform lines erase form emphasis