The GeoPolygon data type is derived from the Geography data type. This means it has a similar functionality to the Geography data type but is specific to represent the Geometry areas.
DBMSs: SQL Server, Oracle, MySQL, SAP Hana, PostgreSQL
Generators: .NET, .NET Framework, Java, Android, Apple
To initialize an attribute or variable based on the GeoPolygon data type you must use the FromGeoJSON method or FromWkt method.
&GeoPolygon.FromGeoJson('{ "type": "Polygon", "coordinates": ... }')
&GeoPolygon is a variable based on the GeoPolygon data type. It can also be an attribute based on the same data type.
| Property |
Type |
Description |
| Srid |
int |
Spatial Reference System Identifier (SRID), identifies the reference system for the represented Geographic object. See https://en.wikipedia.org/wiki/SRID |
Although the following methods specifically apply to the GeoPolygon data type, all the methods that apply to the Geography data type can also be applied to the GeoPolygon data type:
| Method |
Type Returned |
Description |
| FromWkt(Character) |
GeoPolygon |
The format of the Character parameter should be: 'POLYGON(Longitude1 Latitude1, Longitude2 Latitude2, Longitude3 Latitude3, .....)' |
| Intersect(GeoPolygon) |
Boolean |
|
| ToGeography(GeoPolygon) |
Geography |
Converts the GeoPolygon to Geography type. |