| Name | R_Vertical_Reference |
|---|---|
| Entity Type | Table |
| Description | Used as the datum or zero point for depth or elevation measurements. This reference table holds the list of valid Vertical_Reference values. |
| Submodel | Spatial |
| Entity Scope | Reference |
| Primary Key | Code |
| Natural Key | Code |
| Generalizations | Reference_Entity , Reference_Entity_Parent |
| Specializations |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Active_Flag | boolean NA |
1 = use without restriction. 0 = avoid use - the value has been deprecated and may be removed in a later release. | Yes 1 |
NUMBER(1) |
| Code | CODE NA |
A standard abbreviation, mnemonic, or short code that represents the reference value. | Yes |
VARCHAR2(64) |
| Description | STRING2000 NA |
A textual definition of the reference value. | No |
VARCHAR2(2000) |
| Name | CODE NA |
The spelled-out name of the reference value. | No |
VARCHAR2(64) |
| Source | CODE NA |
The person, company or application that defined or specified the data (content) for this instance and is considered to be responsible for it. For example, POSC, EPSG, API, ISO, etc.. | No |
VARCHAR2(64) |
| 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) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Alternate_Elevation | Vertical_Reference | The vertical reference for this Alternate Elevation. | Restrict | Yes |
| Coordinate_System | Vertical_Reference | Reference table for all elevation reference types, e.g., KB, DF, etc. The vertical reference provides the zero measurement point for the vertical axis of the coordinate system. For instance a measured depth coordinate system will have a depth equal to zero at it"s KB, the vertical reference. | Restrict | No |