Randlinie

Randlinie is a German noun meaning boundary line or edge. The term is formed from Rand (edge, margin) and Linie (line) and is used across technical and everyday language to denote the line that marks the limit of a space, object, or concept.

In geometry and mathematics, the Randlinie designates the boundary of a region or shape—the set of points that separate interior from exterior. In many texts, Randlinie is used interchangeably with boundary, especially in informal or educational contexts.

In geography and cartography, the Randlinie marks borders between jurisdictions or map extents. In GIS and map labeling, the term may describe the edge of a polygon feature or the boundary between adjacent regions.

In printing and publishing, the Randlinie can denote the margin area where content should be kept within, or the line that indicates the safe area for text and graphics. Related concepts include bleed and trim lines, which address excess and cutting, respectively, but Randlinie is often used more generally to refer to the limiting edge of a design.

In computer vision and image processing, Randlinie is sometimes used to describe the edge or boundary detected around an object during edge detection and segmentation tasks.

See also: Rand, Grenze, Umrandung, Begrenzung.