Entity general_earth_surface_point


Attribute                                 Flags   Data Type

From earth_surface_point:
   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. 

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

                                          Defines the edges for which this vertex forms
                                          part of the boundary. 

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

                                          These are the offsets between vertical datums
                                          that are defined as passing through this point.
                                          This earth point is being used to locate the offset.

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

                                          may have a property of 

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

                                          Indicates the usage of this earth point to establish
                                          one or more vertical datum planes 

   observed_baseline                      IV      set[0 .. N] of (observation_definition)

                                          This defines the set of observations where this
                                          point was the baseline node for a positioning
                                          facility. 

   observed_reference                     IV      set[0 .. N] of (observation_definition)

                                          This defines the set of observations where this
                                          point was the reference node for a positioning
                                          facility. 

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

                                          may have a property of 


From position_on_earth_surface:
   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. 

   geologic_feature                       I       geologic_feature

                                          Indicates the spatial intersection of the earth
                                          surface and a geologic feature. 

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

                                          may have a property of 

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

                                          may have a property of 

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

                                          Indicates various earth surface features which
                                          are located by this position. 

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

                                          Indicates the various facilities which are located
                                          by this position. 

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

                                          Indicates the various materials which are currently
                                          or have formerly been associated with this location.

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

                                          Indicates the rock materials which outcrop at
                                          this location. 

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

                                          Indicates various materials which were acquired
                                          at this location. 


ref_other_earth_point                     M       ref_other_earth_point

                                          The definition of the type of earth point. 

pty_location_1d                           V       set[0 .. N] of (pty_location_1d)

                                          may have a property of 

pty_location_2d                           V       set[0 .. N] of (pty_location_2d)

                                          may have a property of 

pty_location_3d                           V       set[0 .. N] of (pty_location_3d)

                                          may have a property of 

pty_azimuth                               V       set[0 .. N] of (pty_azimuth)

                                          may have a property of 

pty_inclination_from_vertical             V       set[0 .. N] of (pty_inclination_from_vertical)

                                          may have a property of 

End of entity general_earth_surface_point


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