A vertical datum defined as a reference surface passing through a point. It may be parallel to another vertical datum at that point, or it may have an optional geometry.

local_vert_dtm_s (PK, M: CHAR VARYING(19))

Surrogate key of the table.


local_vert_dtm_id (M: CHAR VARYING(40))

local_vertical_datum.identifier
The identifier of the local vertical datum.


earth_point_s (FSK, M: CHAR VARYING(19))
earth_point_t (M: CHAR VARYING(16))

local_vertical_datum.earth_point
Specifies the earth point which positions this datum plane.
earth_point_s: Implements a foreign key to a row in one of the tables projected from entity earth_point depending on the value of the next column (See below).
earth_point_t: Defines the name of the referenced table. Possible values are defined in @earth_point.


description (O: CHAR VARYING(2000))

local_vertical_datum.description
A remark about the local vertical datum.


vertical_datum_s (FSK, O: CHAR VARYING(19))
vertical_datum_t (O: CHAR VARYING(16))

local_vertical_datum.vertical_datum
This is the vertical datum that this local vertical datum is defined to be parallel to.
vertical_datum_s: Implements a foreign key to a row in one of the tables projected from entity vertical_datum depending on the value of the next column (See below).
vertical_datum_t: Defines the name of the referenced table. Possible values are: geodetic_datum, geoid, local_vert_dtm, vert_ref_dtm (@vertical_datum).