Entity earth_position_composite


Attribute                                 Flags   Data Type

From composite_spatial_object:
   secondary_topological_relationship     IV      set[0 .. N] of (topological_relationship)

                                          Indicates a topological relationship in which
                                          the object is in the role of secondary agent.
                                          For an object intersection type of "inside" this
                                          is the contained role (e.g., if a well is inside
                                          a field then the well would be the secondary agent).
                                          For all other object intersection 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. 

   primary_topological_relationship       IV      set[0 .. N] of (topological_relationship)

                                          Indicates a topological relationship in which
                                          the topologic object has the role of primary agent.
                                          For an object intersection type of "inside" 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 object intersection 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.

   intersection_role                      IV      set[0 .. N] of (space_time_operation)

                                          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. 

   primary_role                           IV      set[0 .. N] of (space_time_operation)

                                          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. 

   source_space_time_operation            IV      bag[0 .. 1] of (space_time_operation)

                                          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. 

   other_composite_spatial_object         IV      set[0 .. N] of (other_composite_spatial_object)

                                          Defines the set of composite spatial objects of
                                          which this spatial object is a component. 

   earth_model                            IV      set[0 .. N] of (earth_model)

                                          Indicates various earth models which include this
                                          spatial representation. 

   pty_bounding_rectangle                 IV      set[0 .. N] of (pty_bounding_rectangle)

                                          may have a property of 


From position_in_earth_model:
   data_collection                        IV      set[0 .. N] of (data_collection)

                                          Indicates the data collections that include this
                                          instance of E and P data. 

   graphical_element                      IV      set[0 .. N] of (graphical_element)

                                          Specifies one or more graphical elements which
                                          are depicting this data item. 

   datum_for_ranking                      IV      set[0 .. N] of (object_ranking)

                                          Indicates that an object is being used as a basis
                                          for comparison with another object. 

   object_of_ranking                      IV      set[0 .. N] of (object_ranking)

                                          Indicates that an object is being classified in
                                          a rank order based on its characteristics. 

   description                            I       ndt_comment

                                          A textual description of the earth model object.

   identifier                             I       ndt_name

                                          The local label used to identify an earth model
                                          object. 

   geoscience_interpretation              I       geoscience_interpretation

                                          The activity which created this object. 

   position_uncertainty_classification    IV      set[0 .. N] of (position_uncertainty_classification)

                                          Defines the set of classifications of this position
                                          with respect to its degree of uncertainty. 

   synthetic_log_trace                    I       synthetic_log_trace

                                          Indicates a synthetic log trace which is positioned
                                          in the earth at this location. 

   geologic_process                       I       set[0 .. N] of (geologic_process)

                                          Indicates a geologic process which is positioned
                                          by this location. 

   geologic_feature                       I       geologic_feature

                                          The geologic feature being represented by this
                                          position in the earth subsurface. 

   binset                                 I       binset

                                          Defines the binset which is implied by the grid
                                          used in the geometry specification. The grid of
                                          the binset is defined using "bin line index" and/or
                                          "bin point index" values. The binset has properties
                                          which locate the grid in 2D space. 

   whole                                  IV      set[0 .. N] of (earth_position_composite)

                                          Indicates various spatial composite locations
                                          which utilize this position as a component. 


part                                              set[0 .. N] of (position_in_earth_model)

                                          Specifies various spatial positions which make
                                          up parts of this composite. 

identify_part                             V       set[0 .. N] of (earth_position_simple)

                                          Indicates the various spatial components of this
                                          composite. 

End of entity earth_position_composite


M - mandatory, U - unique, I - inherited, V - inverse, N - named type


EPICENTRE schema version 2.1

INDEX august POSC Mobil ABOUT
The Epicentre schema is copyright © 1994, 1995, 1996 by POSC, Houston, Texas, USA