Keskikohtia

Keskikohtia is the plural form of keskikohta in Finnish, meaning center points. The term is used across different fields to denote one or more points that represent the center of a set, object, or phenomenon. The exact definition depends on the context in which it is used.

In geometry, keskikohta commonly refers to the geometric center or centroid of a figure. For a polygon, the centroid is the average position of all points in the shape and, for many polygons, coincides with the intersection of the medians. For a circle or sphere, the keskikohta is the center of the shape. In physics, the center of mass, or massakeskus, is closely related when density is uniform.

In geography and cartography, keskikohta can indicate the geographic center of a region or country. Such centers are often defined in methods that minimize distance to boundary points or that balance the area in a given projection, reflecting a practical notion of centrality rather than a single mathematical rule.

In computer graphics and image processing, the center point of an image or viewport serves as a reference for operations such as rotation, scaling, or alignment. The concept of keskikohta thus functions as a practical anchor across disciplines, with calculations and interpretations adapted to the properties of the object or dataset under consideration.

See also: centroid, barycenter, mass center, geographic center, midpoint.