The description and definition of a vertical time axis in a coordinate system. The times are assumed to be measured from a vertical datum which locates the origin of the time axis in space.

ref_quantity_property (M, K, I: ref_quantity_property)

The (quantity) property that is described by the axis. Inherited from coordinate_system_axis.


coordinate_system (K, I, V: BAG[0:1] coordinate_system(coordinate_system_axis))

This describes the coordinate system for which this axis is defined. Each coordinate system axis is defined for use by one and only one coordinate system. Each vertical_time_system_axis may define a part of one coordinate_system. Inherited from coordinate_system_axis.


description (O, I: ndt_comment)

A remark about the coordinate system axis. Inherited from coordinate_system_axis.


data_collection (I, V: SET[0:?] data_collection(collection_content))

Indicates the data collections that include this instance of E and P data. Each vertical_time_system_axis may be a member of one or more data_collection. Inherited from e_and_p_data.


datum_for_ranking (I, V: SET[0:?] object_ranking(base_object))

Indicates that an object is being used as a basis for comparison with another object. Each vertical_time_system_axis may datum for ranking one or more object_ranking. Inherited from object_of_interest.


graphical_element (I, V: SET[0:?] graphical_element(depicted_object))

Specifies one or more graphical elements which are depicting this data item. Each vertical_time_system_axis may be depicted by one or more graphical_element. Inherited from e_and_p_data.


object_of_ranking (I, V: SET[0:?] object_ranking(ranked_object))

Indicates that an object is being classified in a rank order based on its characteristics. Each vertical_time_system_axis may object of ranking one or more object_ranking. Inherited from object_of_interest.


ref_axis_orientation (O, I: ref_axis_orientation)

The orientation of the axis with respect to previously defined axes in the coordinate system. Each axis is oriented as "right-handed" or "left-handed". Inherited from coordinate_system_axis.


vertical_datum (O: vertical_datum(vertical_time_system_axis))

The vertical datum which locates the origin of the time axis in space. The transform from the time axis to a length axis requires a "method" involving a potentially complicated velocity function. Each vertical_time_system_axis may zero time measured from one vertical_datum.

Local rules:

Uniqueness Constraint
ref_quantity_property, coordinate_system
Supertype path(s):
e_and_p_data > object_of_interest > technical_object > coordinate_system_axis > vertical_time_system_axis.

Entity consolidated into table CORD_SYS_AXIS.

Referenced in Diagrams:

• CS2: Vertical Coordinate Axes