1-dimensional geometric primitive, representing the continuous image of a line.

Feature that acts as a function to return values from its range for any direct position within its spatial, temporal or spatiotemporal domain.

Compensation for an estimated systematic effect.

Coordinate operation in which the two coordinate reference systems are based on different datums.

One of a sequence of n numbers designating the position of a point in n-dimensional space.

Transformation from one format to another.

[coordinate system] Control points are XY locations known to have a high degree of accuracy. They are used to convert digitized coordinates from paper maps and georeferencing to standard map projection coordinates.

Agreement between two or more principals that creates in each principal a duty to do or not do something and a right to performance of the other's duty or a remedy for the breach of the other's duty.
 

[data structure] A contour line is a constant value for mapping any variable such as elevation and temperature maps. Contour lines are used to map equal values and illustrate topography or relief on a map. They are also known as isopleth or isoline maps.

Restriction on how a link or turn may be traversed by a vehicle, such as vehicle classification, physical or temporal constraint.

Fulfilment of specified requirements.

Formal description of a conceptual model.

Model that defines concepts of a universe of discourse.