Axis

The Geospatial Glossary, published by the Geospatial Commission, and accessed on 17 September 2022, states in relation to the word ‘Axis’: ‘In a coordinate system, the coordinates specify each point uniquely in a plane, which are the signed distances to the point from two fixed perpendicular oriented lines. Each reference line is called a coordinate axis or just axis (plural axes) of the system.’

It defines the axis order as: 'The order in which coordinates are presented. For example, some systems use (latitude, longitude) rather than (longitude, latitude). The latter is more similar to the mathematical convention of (x, y) ordering. The order used may differ from the order used to define the coordinate system.'

[edit] Related articles on Designing Buildings

• Area.
• Azimuth.
• Coordinate.
• Datum.
• Fold axis.
• Origin.