promítnutí

Promítnutí is a Czech noun that denotes the act or result of projecting something onto a surface or plane. The term is used across several domains, with nuances depending on context. In everyday language it often refers to the screening or showing of a film or other visual media, for example promítnutí filmu do kina or promítnutí obrazu projektorem.

In optics and photography, promítnutí describes casting or projecting light or an image onto a target, such as promítnutí světla na stěnu or promítnutí stínu. The idea is the transfer of visual content from a source to another surface.

In mathematics and geometry, promítnutí can denote the projection of a point, line, or figure onto a subspace along a given direction. However, in technical contexts the standard term is projekce; promítnutí is more common in informal language or older texts.

In cartography and computer graphics, the concept of projecting shapes or data onto a plane is generally described by projekce, but promítnutí may appear when describing the act itself rather than the formal method.

Etymology and usage notes: promítnout is formed with the prefix pro- and the verb mítnout, relating to the act of throwing or casting forward. While closely related to projekce, promítnutí emphasizes the act of projecting as a tangible event (a screening, a projected image, or a geometric drop), whereas projekce is the more technical term for the mapping process.

See also: projekce, promítání, projekční geometrie, promítnutí dat.