POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
Defines the chassis orientation at each node of a grid. The orientation is defined in the following terms: "chassis inclination", "chassis azimuth" and "chassis rotation" The "chassis inclination" is the inclination of the positive axis from downward vertical. The "chassis azimuth" is the azimuth of the "chassis inclination" with respect to "north". The "chassis rotation" is the horizontal rotation of the chassis reference direction marking clockwise from "north".
- receiver_definition (O, K: seismic_geometry_set(receiver_chassis_orientation))
- May be a property of seismic geometry set. The grid used must match the grid specified by attribute receiver uid in the associated seismic geometry set (i.e., fixed facilities). If receiver uid is not defined in seismic geometry set then the grid must be the same as was defined by attribute field trace uid (i.e., moving facilities). Each pty_chassis_orientation_array may be a receiver property of one seismic_geometry_set.
- source_definition (O, K: seismic_geometry_set(source_chassis_orientation))
- May be a property of seismic geometry set. The grid must be the same as was defined by attribute source event uid in the associated seismic geometry set. Each pty_chassis_orientation_array may be a source property of one seismic_geometry_set.
- activity (O, K, I: activity(process_data))
- Defines the activity which created this instance. Each pty_chassis_orientation_array may be the result of one activity. Inherited from process_data.
- ref_north_axis_direction (M: ref_north_axis_direction(pty_chassis_orientation_array)) (C138)
- The meaning of North, e.g., true or magnetic. Each pty_chassis_orientation_array must have an orientation relative to one ref_north_axis_direction.
- azimuth (O: ndt_azimuth)
- The azimuth of the chassis inclination with respect to "north". This value asserts that all nodes of the grid have the same chassis azimuth.
- data_value (O: ndt_relative_orientation_array)
- The orientation of the chassis at each node of a grid. Described using one or more of the following values: "inclination", "azimuth" and "rotation".
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- inclination (O: ndt_plane_angle)
- The inclination of the direction of initial ground motion relative to a downward vertical axis. This value asserts that the source facility for all source events have the same chassis inclination.
- instance_create_date (O, I: ndt_date_tod) (C126)
- 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.
- instance_creator (O, I: ndt_identifier) (C126)
- 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.
- last_updated (O, I: ndt_date_tod) (C126)
- 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.
- last_updated_by (O, I: ndt_identifier) (C126)
- This records the person or application making the update to this instance. Inherited from e_and_p_data.
- preferred_flag (O, I: ndt_boolean)
- The flag is set to True if this instance of property is the preferred value in this data store of this type of property for the object which this property describes. Inherited from property.
- rotation (O: ndt_logical)
- The horizontal rotation of the chassis "reference direction marking" clockwise from "north". This value asserts that all nodes of the grid have the same chassis rotation.
- source (O, I: ndt_identifier) (C126)
- 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.
- data_collection (I, V: SET[0:?] data_collection_content(collection_part)) (C020)
- Indicates the data collections that include this instance of E and P data. Each pty_chassis_orientation_array may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- document_information_content (I, V: SET[0:?] document_information_content(e_and_p_data)) (C136)
- 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 pty_chassis_orientation_array may be included in one or more document_information_content. Inherited from e_and_p_data.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each pty_chassis_orientation_array may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- process_data_item (I, V: SET[0:?] process_data_item(process_data))
- Defines where this data was used by an activity. Each pty_chassis_orientation_array may be the value for one or more process_data_item. Inherited from process_data.
- represent (O, I: property(representations)) (C125)
- This is the property that is the original for which this representation is an equivalent representation. Each pty_chassis_orientation_array may be an equivalent representation of one property. Inherited from property.
- representations (I, V: SET[0:?] property(represent)) (C125)
- This designates other properties that are stated to be equivalent representations of this property representation, such as the same geometry using another coordinate system. Each pty_chassis_orientation_array may have as equivalent representations one or more property. Inherited from property.
Local rules:
- Uniqueness Constraint (C010)
- receiver_definition, source_definition, activity
- [I: property] Mandatory Relationship Set
-
Each PROPERTY must "be a property of" one object.
Supertype path(s):
Generated on Tue Jul 10 15:46:21 2001
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