POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
Any coordinate system that is not geodetically referenced as part of its fundamental definition. This can be a nonspatial coordinate system or a spatial coordinate system that is not referenced to the Earth except through a reference to an object which is has been geodetically located (i.e., we use the objects geometry as a datum or origin). A system (e.g., a vertical seismic time system) may also be related to the Earth via transform to a coordinate system that is referenced to the Earth. A local spatial system is commonly transformed to a projected system using a 2D affine transformation which involves change of origin, orientation and a differential scale change. General coordinate systems may be 1D, 2D, 3D or nD. A nonspatial system is not descriptive of spatial dimensions, such as a PVT (pressure-volume-temperature) system.
- identifier (M, K, I: ndt_identifier) (C025)
- The name of the instance. Inherited from technical_reference.
- local_context (O, K: topological_object(coordinate_system_context))
- The topological object which provides the context for this coordinate system. For parameterized coordinate systems (e.g., measured depth), this will be the object which is being parameterized (e.g., the Wellbore). Each general_coordinate_system may be in the context of one topological_object.
- ref_coordinate_sys_constraint (M, I: ref_coordinate_sys_constraint(coordinate_system)) (C112, C138)
- The type of the coordinate system. This type specifies the number, order and kinds of axes that must be defined for this coordinate system. For example, a coordinate system of geographical 2D must have two axes of latitude and longitude in order. Each general_coordinate_system must be a kind of one ref_coordinate_sys_constraint. Inherited from coordinate_system.
- 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.
- origin_location (O: ndt_location) (C148)
- This is the location of the origin of the coordinate system when the location does not represent a known 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.
- source_content (O, I: ndt_identifier) (C126)
- 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 technical_reference.
- source_reference (O, I: ndt_comment) (C042, C126)
- 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 technical_reference.
- status (O, I: ndt_instance_status) (C042)
- 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 technical_reference.
- compound_first_component (I, V: SET[0:?] compound_coordinate_system(first_system)) (C148)
- This is the set of compound systems which utilize this system as the first component in the compound system. Each general_coordinate_system may be utilized first in one or more compound_coordinate_system. Inherited from simple_coordinate_system.
- compound_second_component (I, V: SET[0:?] compound_coordinate_system(second_system)) (C148)
- This is the set of compound systems which utilize this system as the second component in the compound system. Each general_coordinate_system may be utilized second in one or more compound_coordinate_system. Inherited from simple_coordinate_system.
- coordinate_system_axis (I, V: SET[0:?] coordinate_system_axis(coordinate_system)) (C148)
- These are coordinate system axes that make up this coordinate system. An axis may not be used more than once in a coordinate system. Each general_coordinate_system may be defined by one or more coordinate_system_axis. Inherited from simple_coordinate_system.
- 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 general_coordinate_system 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 general_coordinate_system 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 general_coordinate_system may be included in one or more document_information_content. Inherited from e_and_p_data.
- earth_feature (I, V: SET[0:?] coordinate_system_earth_usage(coordinate_system)) (C139)
- These are the areas of the surface of the Earth that are defined as appropriate to use this coordinate system. Each general_coordinate_system may be defined for use within one or more coordinate_system_earth_usage. Inherited from coordinate_system.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each general_coordinate_system may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- grid_convergence_reference (V: SET[0:?] pty_grid_convergence(local_coordinate_system))
- This designates the measurements of grid convergence made at various point for this coordinate system. Each general_coordinate_system may be used to measure one or more pty_grid_convergence.
- involving_activity (I, V: SET[0:?] object_activity_involvement(involved_object)) (C056)
- This are the activity involvements which affect the object. Each general_coordinate_system may have involvements with one or more object_activity_involvement. Inherited from object_of_interest.
- map (I, V: SET[0:?] map(coordinate_system)) (C043)
- The maps which are positioned within this coordinate system. Each general_coordinate_system may position one or more map. Inherited from coordinate_system.
- naming_system (O, I: naming_system(aliasable_technical_reference)) (C028)
- The naming system in which the identifier is specified and determined to be unique. Each general_coordinate_system may have name specified by one naming_system. Inherited from aliasable_technical_reference.
- pty_geometry_2d_gis (I, V: SET[0:?] pty_geometry_2d_gis(coordinate_system)) (C046)
- The set of OpenGIS formatted geometries which use this coordinate system Each general_coordinate_system may specify values for one or more pty_geometry_2d_gis. Inherited from coordinate_system.
- pty_geometry_simple_1d_edge (I, V: SET[0:?] pty_geometry_simple_1d_edge(coordinate_system)) (C139)
- These are the simple geometries which are defined using values in this coordinate system. Each general_coordinate_system may be used in one or more pty_geometry_simple_1d_edge. Inherited from coordinate_system.
- ref_display_orientation (O: ref_display_orientation(general_coordinate_system))
- This describes the default location of the origin that may be used when displaying information using this local coordinate system. Each general_coordinate_system may oriented by one ref_display_orientation.
- source_for_geodetic (I, V: SET[0:?] geodetic_transformation(source_coordinate_system)) (C148)
- This describes the set of transformations that utilize this coordinate system as a source. Each general_coordinate_system may be the basis of one one or more geodetic_transformation. Inherited from simple_coordinate_system.
- spatial_reference (O: spatial_object(coordinate_system_reference)) (C148)
- Indicates the usage of a spatial object as the reference origin or (local, engineering, etc) datum for the coordinate system. For example, a vertex representation of a kelly bushing used as the origin of a measured depth system or a face representation of a geologic feature used as the datum of an isopach system. Each general_coordinate_system may have as a spatial reference one spatial_object.
- target_for_geodetic (I, V: SET[0:?] geodetic_transformation(target_coordinate_system)) (C148)
- This describes the set of transformations that utilize this coordinate system as a target. Each general_coordinate_system may be a target for one or more geodetic_transformation. Inherited from simple_coordinate_system.
- technical_reference_alias (I, V: SET[0:?] technical_reference_alias(aliased_object)) (C029)
- Indicates the various identifiers by which this instance is known. Each general_coordinate_system may be known by one or more technical_reference_alias. Inherited from aliasable_technical_reference.
- version (O, I: ref_version(technical_reference)) (C042, C126)
- This describes the version of this instance as defined by the provider. Each general_coordinate_system may version one ref_version. Inherited from technical_reference.
Local rules:
- Uniqueness Constraint
- identifier, local_context
- [I: simple_coordinate_system] Instance Value Constraint (C148)
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The Property_kind instance specified by each Coordinate_system_axis must be in the set allowed by the specified instance of Ref_coordinate_system_constraint.
- Instance Value Constraint
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For each instance, the number of axes must match the number allowed by the coordinate system constraint.
- Instance Value Constraint (C148)
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Each coordinate system may be instantiated with either of SPATIAL REFERENCE or ORIGIN LOCATION but not both.
Supertype path(s):
Referenced in Diagrams:
Generated on Tue Jul 10 15:42:37 2001
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