Area_Vertex


[Columns] [Composed Of] [Referenced By] [Refers To]

General Information

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Name Area_Vertex
Entity Type Table
Description The points used to define the boundary polylines, which themselves define an enclosed area.
Submodel Spatial
Entity Scope Project
Primary Key Id
Natural Key Area_Id , Polygon_Sequence_Number , Line_Sequence_Number , Vertex_Sequence_Number , Existence_Kind , Version
Generalizations IT_Object , Tracked_Object
Specializations


Columns

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NameValue DomainProperty /
Storage Unit
DescriptionRequired /
Default
Type
Area_Id Area
The identifier of the area for which the vertex points define the boundary polylines, which themselves define an enclosed area. Yes
NUMBER(38)
Existence_Kind REF_EXISTENCE_KIND NA
A reference value that describes the state of existence in the lifecycle of the entity, for example, Planned, Predicted, Required, Simulated, and Actual. Yes
Actual
VARCHAR2(64)
GUID STRING128 NA
Globally Unique IDentifier for an instance of a class. USAGE NOTES: There are two cases: 1) GUID is not populated or used; and 2) it is populated with a value that is globally unique. If the GUID is populated there are two means of doing so for a given project: 2a) Seabed automatically generates and populates the GUID when an instance is created (valid only on Oracle based systems); and 2b) the GUID is generated and populated by an application (other than Seabed) on instance creation. Whether Seabed automatically generates GUIDs for a project is determined by the Auto_GUID flag in SDS_Account. Note that techniques 2a and 2b can coexist in the same project. When GUIDs are automatically generated an application can override the automatically generated GUID with its own GUID by simply supplying the GUID value. Applications that generate their own GUIDs and populate the GUID column will function correctly on projects which have automatic GUID generation turned on. No
VARCHAR2(128)
I_Coordinate double Dimensionless
Representation of the X coordinate of the point in a system other than geographic. For example, a crossline number or CDP number. No
NUMBER
Id ID No_Unit
Unique identifier for this entity. Yes
NUMBER(38)
Insert_Date DATE NA
Date the entity was created in the repository No
DATE
Insert_User STRING64 NA
The name of the user responsible for the creation of this entity in the repository. No
VARCHAR2(64)
J_Coordinate double Dimensionless
Representation of the Y coordinate of the point in a system other than geographic. For example, an inline number. No
NUMBER
Line_Name STRING255 NA
Name of one of the polygon lines which bound the area, if they are uniquely named. No
VARCHAR2(255)
Line_Sequence_Number int No_Unit
Mandatory numeric ID of each of the polygon lines which bound the area. By convention the exterior bounding line is mentioned first. Interior lines which make holes in the area follow sequentially. Nested geometries of included and excluded areas are allowed, supporting islands containing lakes which contain smaller islands having ponds. However, these geometries can be defined in several ways. Yes
NUMBER(10)
Line_Topology STRING255 NA
Defines the topology between a polygon line and an area. A line may be defined to be an INNER or OUTER boundary of an area. The default value is OUTER. No
VARCHAR2(255)
Polygon_Sequence_Number int No_Unit
Mandatory numeric ID of each of the separate polygons which make up a polygon set (multipolygon). An example is a chain of islands. Yes
NUMBER(10)
Position_Id Position
A type of vertex that is located in, on, or above the Earth but is always locatable using a geo-referenced coordinate system. No
NUMBER(38)
Produced_By STRING64 NA
The name of application role that created the entity, for data created programmatically. No
VARCHAR2(64)
SDAT_Label int No_Unit
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. No
NUMBER(10)
Update_Date DATE NA
Date of the most-recent modification to the entity. No
DATE
Update_User STRING64 NA
The name of the user responsible for the last modification to this entity. No
VARCHAR2(64)
Version STRING255 NA
The form or variant of the entity. Yes
1
VARCHAR2(255)
Vertex_Sequence_Number int No_Unit
Mandatory numeric ID of each vertex of every polygon line which bounds the area, in sequential order. Yes
NUMBER(10)


Refers To

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LinkTo EntityDescriptionImplementation TechniqueRequired
Position Position A type of vertex that is located in, on, or above the Earth but is always locatable using a geo-referenced coordinate system. Control No
Area Area The identifier of the area for which the vertex points define the boundary polylines, which themselves define an enclosed area. Cascade Yes


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