bottomleft

Bottomleft is a term used in software and graphics to designate the bottom-left corner of a rectangular region or the anchor point used to align content within that region. The concept appears in geometry, computer graphics, user interfaces, and geographic information systems.

In mathematical or Cartesian coordinates, the bottom-left corner corresponds to the minimum x and y values. In most screen-based coordinate systems, the origin is at the top-left, so the bottom-left corner lies at (minX, height). This difference in origin can affect how positions, rotations, and scaling are interpreted when moving between coordinate systems.

In user interfaces, bottom-left is commonly used as an alignment or anchor for placing and resizing child elements within a container. It determines how content remains anchored when the container changes size, and how transformations apply relative to that corner.

In programming, BottomLeft or bottomLeft may appear as an enumeration value or constant representing that anchor. Such identifiers are used in layouts, graphics pipelines, texture atlases, and game or UI frameworks to specify alignment, origin, or reference points.

In geographic information systems, the southwest corner of a bounding box or map area is often described as the bottom-left, aligning with traditional map orientations.

See also: top-left, bottom-right, top-right. The exact meaning of bottomleft can vary by context, dictated by the coordinate system and the API or framework in use.