An areal representation of an earth surface feature.

bounding_ring (O, I: SET[0:?] ring(face))

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 earth_surface_area may be bounded by one or more ring. Inherited from face.


earth_model (I, V: SET[0:?] earth_model(spatial_object))

Indicates various earth models which include this spatial representation. Each earth_surface_area may be part of one or more earth_model. Inherited from spatial_object.


inner_boundary_geometry (V: SET[0:?] pty_geometry_2d_ring(inner_surface_face))

The geometries of the rings that define the internal boundaries of the earth surface face. There can be more than one inner boundary. Each earth_surface_area may have an inner boundary of one or more pty_geometry_2d_ring.


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 earth_surface_area may be the intersecting object for one or more space_time_operation. Inherited from topological_object.


map (V: SET[0:?] map(earth_surface_area))

Map specifications which utilize the defined map area. Each earth_surface_area may represent the areal coverage of one or more map.


other_composite_spatial_object (I, V: SET[0:?] other_composite_spatial_object(composite_object))

Defines the set of composite spatial objects of which this spatial object is a component. Each earth_surface_area may be a component of one or more other_composite_spatial_object. Inherited from spatial_object.


outer_boundary_geometry (V: SET[0:?] pty_geometry_2d_ring(outer_surface_face))

The geometries that describe the outer boundary of an earth surface face. There can only be one outer boundary. Each earth_surface_area may have an outer boundary of one or more pty_geometry_2d_ring.


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 earth_surface_area may be the primary object for one or more space_time_operation. Inherited from topological_object.


primary_topological_relationship (I, V: SET[0:?] topological_relationship(primary_topological_object))

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. Each earth_surface_area may be primarily involved in one or more topological_relationship. Inherited from topological_object.


pty_area (I, V: SET[0:?] pty_area(face))

Each earth_surface_area may have a property of one or more pty_area. Inherited from face.


pty_geometry_2d_face (I, V: SET[0:?] pty_geometry_2d_face(face))

Each earth_surface_area may have a property of one or more pty_geometry_2d_face. Inherited from face.


pty_geometry_3d_face (I, V: SET[0:?] pty_geometry_3d_face(face))

Each earth_surface_area may have a property of one or more pty_geometry_3d_face. Inherited from face.


secondary_topological_relationship (I, V: SET[0:?] topological_relationship(secondary_topological_object))

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. Each earth_surface_area may be involved in one or more topological_relationship. Inherited from topological_object.


shell (O, I: SET[0:?] shell(face))

Defines the shells of which this face is a component. Each earth_surface_area may be a component of one or more shell. Inherited from face.


source_space_time_operation (I, V: BAG[0:1] space_time_operation(resulting_object))

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 earth_surface_area may be the result of one space_time_operation. Inherited from topological_object.

Local rules:

Abstract supertype:
Each EARTH_SURFACE_AREA must be instantiated as one of its subtypes. These subtypes are: damage_area, general_surface_area, land_property_parcel, legal_survey_area, unitized_land_parcel_area
Supertype path(s):
topological_object > spatial_object > simple_spatial_object > face > earth_surface_area.

Entity replicated into subtype tables (@earth_surface_area).

Referenced in Diagrams:

• CT2: Earth Surface Topology (0712)