geo functions (GEO)
The Geo module provides support for geospatial queries using GML, KML, GeoRSS/Simple, Metacarta or GeoJSON Geospatial markup.
To use the Geo module as part of your own XQuery module, include the following line in your XQuery prolog:
import module namespace geo = "http://marklogic.com/geospatial"
at "/MarkLogic/geospatial/geospatial.xqy";
The library namespace prefix geo is not predefined
in the server.
14 functions
| Function name | Description |
|---|---|
| geo:box | Create a cts:box value from a node representing a box in one of the supported markup vocabularies, such as KML, GML, or GeoJSON. |
| geo:circle | Create a cts:circle value from a radius and a node representing a point in one of the supported markup vocabularies, such as KML, GML, or GeoJSON. |
| geo:complex-polygon | Create a cts:complex-polygon value from a node representing a complex polygon in one of the supported markup vocabularies, such as KML, GML, or GeoJSON. |
| geo:geospatial-query | Returns a query matching points within given regions. |
| geo:geospatial-query-from-elements | Returns a query matching points within given regions. |
| geo:geospatial-query-from-nodes | Returns a query matching points within given regions. |
| geo:interior-polygon | Create a sequence of cts:polygon values from a polygon node in one of the supported markup vocabularies, such as KML or GML. |
| geo:linestring | Create a cts:linestring value from a node representing a linestring in one of the supported markup vocabularies, such as GML or KML. |
| geo:linestring-concat | Construct a linestring by concatenating the vertices of the input linestrings, in order. |
| geo:linestring-reverse | Construct a linestring with the vertices in reverse order. |
| geo:parse | Convert nodes in one or more of the supported geospatial representations into cts:region values. |
| geo:point | Create a cts:point value from a node representing a point in one of the supported markup vocabularies, such as KML or GML. |
| geo:polygon | Create a cts:polygon value from a sequence of point nodes in one of the supported markup vocabularies, such as KML or GML. |
| geo:polygon-to-linestring | Construct a linestring from the vertices of a polygon, or construct a sequence of linestrings from the outer and inner polygons of a complex polygon. |