Entity local_vertical_datumEntity local_vertical_datum
Attribute Flags Data Type
From technical_object:
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.
From vertical_datum:
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.
shell I set[0 .. N] of (shell)
Defines the shells of which this face is a component.
bounding_ring I set[0 .. N] of (ring)
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.
pty_geometry_2d_face IV set[0 .. N] of (pty_geometry_2d_face)
may have a property of
pty_geometry_3d_face IV set[0 .. N] of (pty_geometry_3d_face)
may have a property of
pty_area IV set[0 .. N] of (pty_area)
may have a property of
measured_depth_system_axis IV set[0 .. N] of (measured_depth_system_axis)
These are the measured depth axes that use this
vertical datum as the reference for vertical
measurements, meaning measured depth is zero at
this datum.
vertical_time_system_axis IV set[0 .. N] of (vertical_time_system_axis)
The set of vertical time coordinate system axes
that use this vertical datum as the location of
origin of the time axis.
datum_for_axis IV set[0 .. N] of (vertical_depth_system_axis)
The set of vertical depth system axes that use
this vertical datum as their measurement datum.
orient_axis IV set[0 .. N] of (vertical_depth_system_axis)
The set of vertical depth system axes that are
defined to be oriented normal to this vertical
datum.
local_vertical_datum IV set[0 .. N] of (local_vertical_datum)
The local vertical datums that are defined to
be parallel to this vertical datum.
initiate_offset IV set[0 .. N] of (vertical_datum_offset)
The set of vertical datum offsets that define
this datum as the initial datum. These offsets
are described as being normal to this vertical
datum. For an offset being defined as from A to
B, this describes the datum as being used as A.
terminate_offset IV set[0 .. N] of (vertical_datum_offset)
The set of vertical datum offsets that define
this datum as a terminal datum. This means the
an offset being expressed from A to B would refer
to this vertical datum as B.
description ndt_comment
A remark about the local vertical datum.
identifier MU ndt_name
The identifier of the local vertical datum.
earth_point MU earth_point
Specifies the earth point which positions this
datum plane.
vertical_datum vertical_datum
This is the vertical datum that this local vertical
datum is defined to be parallel to.
M - mandatory, U - unique, I - inherited, V - inverse, N - named type
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