| 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 |
| Name | Value Domain | Property / Storage Unit | Description | Required / 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) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| 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 |