eng
axis <coordinate geometry>
tuple of axis name, axis abbreviation, axis direction, axis unit and further information
Note 1 to entry: This definition is established in accordance with ISO 19111:2019, Table 26 and subclause 10.4.
Note 2 to entry: Inside a coordinate reference system (CRS) containing several axes the axis names are required to be pairwise different.
Note 3 to entry: The axis unit (of measure) defines the set of values which can be used as a coordinate along this axis. These can be numbers (such as in Latitude and Longitude) or general strings (such as in timestamps or special identifiers like "FL100" in aviation).
[SOURCE: ISO 19123-1:2023, 3.1.2]