This is a coordinate system axis that is part of a coordinate system. The axis is ordered within the context of the coordinate system. An axis may not be used more than once in a coordinate system. Each coordinate_system_axis must define a part of one simple_coordinate_system.
This is a short name which is commonly used for this axis. These are generally names such as "x", "y", "X", "Y", "N", "E", "Lat", "Long", etc. This may or may not be an abbreviation of the property kind.
This is the order of the axis within the definition of the coordinate system. This order should match the "normal" order assumed for the coordinate system. For exporting tuples of data, this would be the normal order of coordinates within the tuple. Note that the data base is somewhat independent of order because the order is explicit and not assumed. The only place that this order is used is in the LIST associated with data type LOCATION, in the LIST of axis types associated with the coordinate system constraint and in the determination of the right/left handed orientation of the coordinate system. The first axis should have an axis order of one, the second an order of two, etc.
This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance. Inherited from e_and_p_data.
This is the person, company or application that created this instance. This identifies the party responsible for loading this instance. Inherited from e_and_p_data.
This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships). Inherited from e_and_p_data.
The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC". Inherited from e_and_p_data.
This is the original source of the data. This is the person, company or application that defined or specified the data (content) for this instance and is considered to be responsible for it. For example, POSC, EPSG, API, ISO, etc. This may be the same as or different from the provider of the instance (e.g., POSC). Inherited from association_reference.
The reference used by source to provide the standard instance, such as Petroleum Industry Data Dictionary (PIDD), Websters Ninth New Collegiate Dictionary, etc. Inherited from association_reference.
The status of this instance in the version of Epicentre running in a data store. This is an enumerated datatype for which the following are the possible values: current, provisional, deprecated. Current - use without restriction. Provisional - use with caution, this value is for comment and may not appear in future releases of Epicentre. Deprecated - avoid use if possible, it is planned to remove this value in the next major release of Epicentre. Inherited from association_reference.
This asserts that an axis is constrained to one unit of measure. Note that this is redundant to the constraints on ref_quantity_type. Each coordinate_system_axis may be constrained to one ref_unit_of_measure.
Indicates the data collections that include this instance of E and P data. Each coordinate_system_axis may be a member of one or more data_collection_content. Inherited from e_and_p_data.
These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each coordinate_system_axis may be included in one or more document_information_content. Inherited from e_and_p_data.
Specifies one or more graphical elements which are depicting this data item. Each coordinate_system_axis may be depicted by one or more graphical_element. Inherited from e_and_p_data.
The orientation of the positive direction of the coordinate system axis. The orientations may be absolute in an Earth sense or be relative to other axes. For example, "east", "west", "north", "south", "upward", "downward", "right handed" and "left handed". Note that a 3D system with axis orientations of north/east/upward inherently defines a left-handed coordinate system (or from an alternative viewpoint, a left-handed third axis). Each coordinate_system_axis may have orientation defined by one ref_axis_orientation.
This describes the version of this instance as defined by the provider. Each coordinate_system_axis may version one ref_version. Inherited from association_reference.