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A dashed line with a curved arrow.
Also known as: Valley fold, Dashed fold line, Fold towards you, Yamaori
A dashed line means fold the paper towards you, and a dot-dashed line means fold it away. The two lines are the whole grammar of an origami diagram, and the Yoshizawa–Randlett system made origami transmissible in print for the first time.
Denotes a fold bringing the paper towards the reader, drawn as a dashed line with a curved arrow indicating the direction.
Contexts: History
Contrasts with the mountain fold, drawn as a dot-dashed line, the two together constituting the basic grammar of an origami diagram.
Contexts: History
Belongs to the Yoshizawa–Randlett system, developed by Akira Yoshizawa and published in English by Samuel Randlett and Robert Harbin, which made origami transmissible in print internationally.
Contexts: History
A straight line of evenly spaced dashes across a paper outline, accompanied by a curved solid arrow turning from one side of the line to the other.
A fuller structured visual breakdown is not yet documented for this symbol.