| Name | R_CRS_Type |
|---|---|
| Entity Type | Table |
| Description | This entity contains codes and descriptions for the types of coordinate reference systems (CRSs). CRSs are classified as geographic, geocentric, engineering, vertical, compound, projected or some combination of these. A 3D geographic CRS has axes of latitude, longitude and ellipsoidal height. GPS receivers indicate location in this manner. A 2D geographic CRS has axes of latitude and longitude and is the horizontal subset of a 3D geographic CRS. A projected CRS is a Cartesian 2D system with axes of easting and northing. The axes are referred to as E and N or X and Y, in any order. Projected coordinates result from the conversion of geographic 2D coordinates through a map projection. The list of CRS types includes: Compound, Engineering, Geocentric, Geographic2D, Geographic3D, Projected, Vertical, Compound Proj + Vertical, and Compound Geog2D + Vertical. |
| Submodel | Spatial |
| Entity Scope | Reference |
| Primary Key | Code |
| Natural Key | Code |
| Generalizations | Reference_Entity , Reference_Entity_Parent |
| Specializations |
| Name | Value Domain | Property / Storage Unit | 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) |
| 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) |
| Name | STRING255 | NA |
The spelled-out name of the reference value. | No |
VARCHAR2(255) |
| 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 |
|---|---|---|---|---|
| R_Coordinate_Ref_System | Type | The code or mnemonic that identifies the type of coordinate reference system. The list of CRS types includes: Compound, Engineering, Geocentric, Geographic2D, Geographic3D, Projected, Vertical, Compound Proj + Vertical, and Compound Geog2D + Vertical. | Restrict | Yes |