Figure: how a figure is drawn

A figure or a diagram in any document of the family: how it is made, reached, laid out, labelled and judged. The evidence is the figures topic.

Principle
Drawn from source
Text alternative
Few crossings
Label in place
Group by region
One message
Position for quantities
Appeal after clarity

Three rules of a figure are reader-ergonomics' own, linked and not repeated here. A relation is drawn (draw relations). Its words sit beside it (figure next to its text). Its lines reach 3:1 against the page and their fill (sufficient contrast).