whereauthorized_spatial_reference_id=4326 andauthority_name='EPSG' 基于sys.spatial_reference_systems表定义了多种不同的空间参照系统的WKT描述,如上SQL语句查询出的是我们平时在地图应用开发中使用最多的EPSG:4326空间参照系统标准,则对于的WKT如下: GEOGCS["WGS 84", DATUM["World Geodetic System 1984", ELLI...
1. CREATE SPATIAL REFERENCE SYSTEM 4120 2. NAME 'Greek' 3. ORGANIZATION 'EPSG' IDENTIFIED BY 4120 4. DEFINITION 5. 'GEOGCS["Greek",DATUM["Greek",SPHEROID["Bessel 1841", 6. 6377397.155,299.1528128,AUTHORITY["EPSG","7004"]], 7. AUTHORITY["EPSG","6120"]],PRIMEM["Greenwich",0, 8. AU...
基于sys.spatial_reference_systems表定义了多种不同的空间参照系统的WKT描述,如上SQL语句查询出的是我们平时在地图应用开发中使用最多的EPSG:4326空间参照系统标准,则对于的WKT如下: 复制 GEOGCS["WGS 84",DATUM["World Geodetic System 1984",ELLIPSOID["WGS 84", 6378137, 298.257223563]],PRIMEM["Greenwich", ...
fromsys.spatial_reference_systems whereauthorized_spatial_reference_id=4326 andauthority_name='EPSG' 基于sys.spatial_reference_systems表定义了多种不同的空间参照系统的WKT描述,如上SQL语句查询出的是我们平时在地图应用开发中使用最多的EPSG:4326空间参照系统标准,则对于的WKT如下: <!--Code highlighting produce...
基于sys.spatial_reference_systems表定义了多种不同的空间参照系统的WKT描述,如上SQL语句查询出的是我们平时在地图应用开发中使用最多的EPSG:4326空间参照系统标准,则对于的WKT如下: GEOGCS["WGS 84", DATUM["World Geodetic System 1984", ELLIPSOID["WGS 84", 6378137, 298.257223563]], ...
For example, EPSG 2193 (NZGD_2000_New_Zealand_Transverse_Mercator) derives the falsex, falsey and xyunits values based on the extent of the projection system: falsex = -6020520.00000 falsey = -1997720.00000 xyunits = 375371289.4930 The z and m coordinates for all predefined spatial reference ...
The Oracle Spatial coordinate system support is based on, but is not always identical to, the European Petroleum Survey Group (EPSG) data model and dataset. Three-Dimensional Coordinate Reference System SupportThe Oracle Spatial support for three-dimensional coordinate reference systems complies with ...
The spatial reference identification system is defined by theEuropean Petroleum Survey Group (EPSG)standard, which is a set of standards developed for cartography, surveying, and geodetic data storage. This standard is owned by the Oil and Gas Producers (OGP) Surveying and Positioning Committee. ...
CREATE SPATIAL REFERENCE SYSTEM "mySpatialRS" IDENTIFIED BY 1000026980 LINEAR UNIT OF MEASURE "metre" TYPE PLANAR COORDINATE X BETWEEN 171266.736269555 AND 831044.757769222 COORDINATE Y BETWEEN 524881.608973277 AND 691571.125115319 DEFINITION 'PROJCS["NAD83 / Kentucky South", GEOGCS["NAD83", DATUM["North...
A spatial reference system (SRS) for spatial data is a coordinate-based system for geographic locations. There are different types of spatial reference systems: A projected SRS is a projection of a globe onto a flat surface; that is, a flat map. For example, a light bulb inside a globe ...