FeatureRepresentation (OpenSpirit v2.9.0 Build 27

Intro

Overview

Model

Table

OpenSpirit v2.9.0 Build 27 - Generic Model

SUMMARY: INHERITED | COLUMNS

DETAIL: COLUMNS

EpiInterpretation_FeatureRepresentation

Derived From:: EpEntity_Entity

Derivatives:: EpiInterpretation_FaultFeatureRepresentation, EpiInterpretation_HorizonFeatureRepresentation, EpiPillarGrid_PillarGridInterval

Capabilties:: read

Base table for geometries associated with a feature and an earth model. FeatureRepresentation contains the shape and a set of quantity properties evaluated on the geometry of the shape. Within a given Earth Model a geologic feature may have multiple FeatureRepresentations but none should represent a different geologic opinion. A representation expressing an alternate opinion should be in a different Earth Model or a different feature. Multiple representations of the same feature may be in a single Earth Model if the different representations are parts of the same geologic feature. This may arise if the feature was interpreted over different seismic geometries. Reverse faulted horizons are another case where multiple representations can exist. Some vendor stores support a SurfacePatchName attribute which is used for associating multiple horizon grids together. A representation will be created for each SurfacePatchName. Also, the same geologic feature in an EarthModel can have multiple representations that reflect different shape types (e.g. both a 2D grid and trimesh representations of the same geologic opinion of a horizon feature).

Column Summary

Type Name and Description

Stringro

KeyString

Unique identifier for each table entry.

String
db

Comment

Comments associated with the feature representation.

String
ro db

CoordinateSystem

The default coordinate system.

String
ro db

CoordinateSystemName

The default coordinate system name.

String
db

DataSource

The name of the company, vendor, software application, or other provider supplying the information.

Float
ro db

DatumElevation

The elevation of the vertical reference datum.

String
ro db

DatumElevationUnit

The unit acronym for the DatumElevation.

PointSeq
ro db

Extent

The extent in the form of an array of points which represents the maximum bounding box of the feature representation's shape.

String
ro req db

Feature

The associated feature.

String
db

Interpreter

The name or identifier (for example, userid) of the person that created the feature representation.

String
ro req db

Model

The associated earth model.

StringSeq
ro db

OriginTypes

A FeatureRepresentation can be associated with multiple origins and this column identifies the type of origin.

StringSeq
ro db

OriginValues

The origin of the FeatureRepresentation.

String
ro db

PrimaryDomain

The primary domain of this FeatureRepresentation.

StringSeq
ro db

RepresentationPropertyKeys

A Representation can have multiple properties.

StringSeq
ro db

RepresentationPropertyNames

A Representation can have multiple properties.

String
ro db

ShapeType

A list of OpenSpirit Shape Property Types that are supported by the store of this particular FeatureRepresentation.

Columns inherited from EpEntity_Entity

LastModifiedDate, Name, Project, ProjectName, StoreInstallationName, StoreType

Column Detail

KeyString

`Data Type:`	String
`Read only:`	true

Unique identifier for each table entry.

Comment

`Data Type:`	String
`Read only:`	false
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

Comments associated with the feature representation.

ShapeType

`Data Type:`	String
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false
`Permitted Values:`	Grid1d \| Grid1dSet \| Grid2d \| QuadMesh \| PointSet \| PolylineSet \| OrderedPolylineSet

A list of OpenSpirit Shape Property Types that are supported by the store of this particular FeatureRepresentation.

Interpreter

`Data Type:`	String
`Read only:`	false
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The name or identifier (for example, userid) of the person that created the feature representation.

Feature

`Data Type:`	String
`Content Type:`	Key
`Read only:`	true
`Required for Insert:`	true
`Stored in db:`	true
`Part of natural key:`	false
`Referenced Table:`	EpiInterpretation_Feature

The associated feature.

RepresentationPropertyKeys

`Data Type:`	StringSeq
`Content Type:`	KeySeq
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

A Representation can have multiple properties. For example, for a horizon grid2d representation, there may be a primary geometry property, the time picks, and other attribute properties that are generated based on the time picks.

OriginTypes

`Data Type:`	StringSeq
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

A FeatureRepresentation can be associated with multiple origins and this column identifies the type of origin.

CoordinateSystemName

`Data Type:`	String
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The default coordinate system name.

DatumElevationUnit

`Data Type:`	String
`Content Type:`	UnitAcronym
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The unit acronym for the DatumElevation.

DatumElevation

`Data Type:`	Float
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The elevation of the vertical reference datum.

Extent

`Data Type:`	PointSeq
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The extent in the form of an array of points which represents the maximum bounding box of the feature representation's shape. Clients should always set the coordinate system when retrieving this column so they know the exact coordinate system the points are returned in; otherwise, the points will be returned in the default coordinate system and each vendor store might have a different default. For 2D shapes, the PointSeq will contain four points and the Z values of each point is ignored. For 3D shapes, the PointSeq will contain eight points and the Z values are populated. The first four points will be the bounding box with minimum Z and the last four points will be the bounding box with maximum Z. The PointSeq will contain zero points if the bounding box cannot be determined. The points are returned based on the CoordinateSystem if a coordinate system is not provided.

Model

`Data Type:`	String
`Content Type:`	Key
`Read only:`	true
`Required for Insert:`	true
`Stored in db:`	true
`Part of natural key:`	false
`Referenced Table:`	EpiInterpretation_EarthModel

The associated earth model.

OriginValues

`Data Type:`	StringSeq
`Content Type:`	KeySeq
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The origin of the FeatureRepresentation. Unique row identifier for the tables returned in the OriginTypes column. There is a one-to-one relationship between this column and the OriginTypes column.

CoordinateSystem

`Data Type:`	String
`Content Type:`	CoordinateSystemKey
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

The default coordinate system.

RepresentationPropertyNames

`Data Type:`	StringSeq
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false

A Representation can have multiple properties. For example, for a horizon grid2d representation, there may be a primary geometry property, the time picks, and other attribute properties that are generated based on the time picks.

PrimaryDomain

`Data Type:`	String
`Read only:`	true
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false
`Permitted Values:`	TIME \| DEPTH

The primary domain of this FeatureRepresentation. The primary domain is usually controlled by the earth model this FeatureRepresentation is associated with.

DataSource

`Data Type:`	String
`Read only:`	false
`Required for Insert:`	false
`Stored in db:`	true
`Part of natural key:`	false