gridniveau
Gridniveau is a term used in geospatial and design software to denote the elevation reference for a regular grid. It identifies the vertical position of the grid plane relative to a chosen datum and governs how Z-values of grid nodes are assigned and interpreted. The word combines the English grid with the French niveau, meaning level. In practice, gridniveau defines the base elevation from which grid-based measurements, such as contour intervals and cross-sections, are computed.
A typical grid has a fixed spacing between lines, and the gridniveau sets the height of the
Applications of gridniveau occur in GIS, civil engineering, and BIM workflows, where aligning multiple layers to
Limitations include the assumption of a flat, planar grid. In contexts with significant terrain variability or
See also: vertical datum, elevation, coordinate system, grid reference, digital elevation model, BIM.