POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
A face is a bounded portion of a shell. It is orientable (though not oriented) since two region boundaries (shells) may use different sides of the same face. Strictly speaking, a face consists of the piece of surface it covers, but does not include its boundaries.
- identifier (O, K, I: ndt_identifier) (C004)
- The identifier of the spatial object. Inherited from spatial_object.
- located_object (O, K, I: locatable_object(located_by)) (C004)
- The locatable object that is represented by this spatial nature. Each face may locate one locatable_object. Inherited from spatial_object.
- identifying_whole (O, K, I: composite_spatial_object(identify_part)) (C004)
- The composite objects within whose context this object is unique. Each face may be identified by one composite_spatial_object. Inherited from spatial_object.
- creating_activity (O, K, I: activity(created_spatial_object)) (C004)
- The activity which created the spatial opinion. Each face may be created by one activity. Inherited from spatial_object.
- located_activity (O, K, I: activity(located_by_spatial_object)) (C004)
- The activity which is (at least partially) located by this spatial opinion. This allows the spatial opinions of locatable objects to be versioned within the context of the activity. Each face may located one activity. Inherited from spatial_object.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- 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.
- on_surface (O: ndt_logical) (C004)
- TRUE asserts that the face is "on" (as opposed to near) the surface of the earth. All objects on the surface of the earth which have the same x,y location are asserted to coincide (i.e., have the same elevation). FALSE asserts that it is not on the surface of the earth or is only near it.
- preferred_flag (O, I: ndt_boolean) (C087)
- When true, this designates this instance as being the preferred spatial representation for the related locatable_object. Inherited from spatial_object.
- 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.
- bounding_ring (V: SET[0:?] ring_face_binding(face)) (C006)
- Defines the set of rings which form the boundary of the face. For example, a polygon can be bounded by one ring while a face with a hole in it can be bounded by two rings. Each face may be bounded by one or more ring_face_binding.
- component_whole (I, V: SET[0:?] composite_spatial_object_comp(spatial_object)) (C004)
- The composites which are constructed using this spatial object as a part. Each face may be part of one or more composite_spatial_object_comp. Inherited from spatial_object.
- contract_object_designation (I, V: SET[0:?] contract_object_designation(business_object)) (C112)
- This defines the contract designations that are made for this business object. For example, this may be the contract designations that define the specific interest ownership fractions of the business object as it is bought and sold. Each face may be subject to one or more contract_object_designation. Inherited from business_object.
- coordinate_system_context (I, V: SET[0:?] general_coordinate_system(local_context)) (C148)
- These are the coordinate systems which have been defined in the context of this object. For example, a measured depth system defined for a wellbore. Each face may be the context for one or more general_coordinate_system. Inherited from topological_object.
- coordinate_system_reference (I, V: SET[0:?] general_coordinate_system(spatial_reference)) (C148)
- These are the coordinate systems which have used this object as a reference origin or (local, engineering, etc) datum for the coordinate system. For example, a measurd depth system which uses the vertex representation of a kelly bushing used as the origin. Each face may have as a spatial reference one or more general_coordinate_system. Inherited from spatial_object.
- 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 face may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- derived_interest (I, V: SET[0:?] derived_interest_makeup(interest_for)) (C071, C122)
- These are the ownership fractions for business associates of this object. Each face may be referenced by one or more derived_interest_makeup. Inherited from object_of_interest.
- 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 face may be included in one or more document_information_content. Inherited from e_and_p_data.
- earth_model (I, V: SET[0:?] earth_model_composition(spatial_object)) (C053)
- Indicates various earth models which include this spatial representation. Each face may be part of one or more earth_model_composition. Inherited from spatial_object.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each face may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- guideline_compliance (I, V: SET[0:?] guideline_compliance(business_object)) (C112)
- These are the designations of compliance with guidelines, limitations, regulations and privileges that are made for this business object. Each compliance statement describes the state of compliance for a specified guideline, limitation, regulation or privilege for a period of time. Each face may be the subject of one or more guideline_compliance. Inherited from business_object.
- guideline_or_privilege (I, V: SET[0:?] object_subject_to_guideline(business_object)) (C053)
- These are the guidelines, limitations, regulations or privileges that are specifically defined for this business object. Other general guidelines, etc., that apply to this business object are defined via the typical and class relationships (if any) defined for this business object. Each face may be the subject of one or more object_subject_to_guideline. Inherited from business_object.
- intersection_role (I, V: SET[0:?] space_time_operation(intersecting_object))
- Indicates a space/time operation for which the object is involved as an intersecting agent. For projection, this is the screen on which an object is being projected. For proximity, this is the magnet object. Each face may be the intersecting object for one or more space_time_operation. Inherited from topological_object.
- involving_activity (I, V: SET[0:?] object_activity_involvement(involved_object)) (C056)
- This are the activity involvements which affect the object. Each face may have involvements with one or more object_activity_involvement. Inherited from object_of_interest.
- object_remark (I, V: SET[0:?] object_remark(business_object)) (C069, C122)
- This is a sequenced set of datable remarks for this business object. Each face may be described by one or more object_remark. Inherited from business_object.
- position_uncertainty_clsn (I, V: SET[0:?] position_uncertainty_clsn(spatial_object)) (C112)
- The set of classifications of this position with respect to its degree of uncertainty. Each face may be classified by one or more position_uncertainty_clsn. Inherited from spatial_object.
- primary_geometrical_relation (I, V: SET[0:?] geometrical_relationship(primary_spatial_object)) (C112)
- Indicates a geometrical relationship in which this spatial object has the role of primary agent. Each face may be primarily involved in one or more geometrical_relationship. Inherited from spatial_object.
- primary_role (I, V: SET[0:?] space_time_operation(primary_object))
- Indicates a space/time operation for which the object is involved as a primary agent. For degeneration, this object is being degenerated. For projection, this object is being projected onto another object. For proximity, this is the container object. Each face may be the primary object for one or more space_time_operation. Inherited from topological_object.
- primary_topological_relation (I, V: SET[0:?] topological_relationship(primary_topological_object)) (C112, C143)
- Indicates a topological relationship in which the topologic object has the role of primary agent. For a spatial predicate type of "within" this is the containing role (e.g., if a city is inside a county then the county would be the primary agent). For all other spatial predicate types the roles are symmetrical and both relationships must be searched for a particular object. For example, if a wellbore and a formation overlap then either could be chosen as the primary agent with the other chosen as the secondary agent. Each face may be primarily involved in one or more topological_relationship. Inherited from topological_object.
- pty_area (V: SET[0:?] pty_area(face))
- Each face may have a property of one or more pty_area.
- pty_azimuth (V: SET[0:?] pty_azimuth(face)) (C008)
- The azimuth of the normal to the face as projected on a horizontal plane. Each face may have a property of one or more pty_azimuth.
- pty_descriptive_text (I, V: SET[0:?] pty_descriptive_text(spatial_object)) (C008)
- Versionable description of a spatial object. This is modeled as a property, and hence is versionable, to allow for different opinions of a spatial object to be expressed. Each face may have a property of one or more pty_descriptive_text. Inherited from spatial_object.
- pty_geometry_2d_face (V: SET[0:?] pty_geometry_2d_face(face))
- Each face may have a property of one or more pty_geometry_2d_face.
- pty_geometry_2d_gis (V: SET[0:?] pty_geometry_2d_gis(face)) (C046)
- Each face may have a property of one or more pty_geometry_2d_gis.
- pty_geometry_3d_face (V: SET[0:?] pty_geometry_3d_face(face))
- Each face may have a property of one or more pty_geometry_3d_face.
- pty_inclination_from_vertical (V: SET[0:?] pty_inclination_from_vertical(face)) (C008)
- The inclination of the normal to the face as projected on a horizontal plane. Each face may have a property of one or more pty_inclination_from_vertical.
- satisfy_obligation (I, V: SET[0:?] contract_oblig_object_fulfil(business_object)) (C053)
- These are the contractual obligations that this business object is designated as fulfilling, either completely or partially. Each face may satisfy one or more contract_oblig_object_fulfil. Inherited from business_object.
- secondary_geometrical_relation (I, V: SET[0:?] geometrical_relationship(secondary_spatial_object)) (C112)
- Indicates a geometrical relationship in which this spatial object has the role of secondary agent. Each face may be involved in one or more geometrical_relationship. Inherited from spatial_object.
- secondary_topological_relation (I, V: SET[0:?] topological_relationship(secondary_topological_object)) (C112, C143)
- Indicates a topological relationship in which the object is in the role of secondary agent. For a spatial predicate type of "within" this is the contained role (e.g., if a well is within a field then the well would be the secondary agent). For all other spatial predicate types the roles are symmetrical and both relationships must be searched for a particular object. For example, if a wellbore and a formation overlap then either could be chosen as the secondary agent with the other chosen as the primary agent. Each face may be involved in one or more topological_relationship. Inherited from topological_object.
- shell (V: SET[0:?] shell_composition(face)) (C006)
- Defines the shells of which this face is a component. Each face may be a component of one or more shell_composition.
- source_space_time_operation (I, V: SET[0:1] space_time_operation(resulting_object)) (C151)
- Indicates the space/time operation from which a topological object was the result. For addition, this is the union of two objects. For degeneration, this is the degenerate object. Each face may be the result of one space_time_operation. Inherited from topological_object.
- subject_of_contract (I, V: SET[0:?] subject_of_contract(business_object)) (C053)
- These are the contracts that specify information about the business object, and the business object is subject to the terms of these contracts. Each face may be a subject of one or more subject_of_contract. Inherited from business_object.
Local rules:
Supertype path(s):
Entity consolidated into table SPATIAL_OBJECT.
Referenced in Diagrams:
Generated on Tue Jul 10 15:41:44 2001
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