spatial.decodeGeometry

Function

Returns a geometry of a layer node as the Neo4j geometry type, to be passed to other procedures or returned to a client

Signature

spatial.decodeGeometry(layerName :: STRING, node :: NODE) :: ANY

Input parameters

Name Type Default Description

layerName

STRING

null

The name of the layer used to select the appropriate geometry encoder for extracting the Neo4j geometry.

node

NODE

null

An index node to extract the neo4j geometry from

Examples

Decode a geometry from a node property

Create a WKT layer
CALL spatial.addWKTLayer('geom','geom')
Table 1. Result
node 
(:SpatialLayer {
    geomencoder: "org.neo4j.gis.spatial.WKTGeometryEncoder",
    geomencoder_config: "geom",
    index_class: "org.neo4j.gis.spatial.index.LayerRTreeIndex",
    layer: "geom",
    layer_class: "org.neo4j.gis.spatial.EditableLayerImpl"
})
Decode a geometry
CREATE (n:Node {geom:'POINT(4.0 5.0)'}) RETURN spatial.decodeGeometry('geom',n) AS geometry
Table 2. Result
geometry

point({x: 4.0, y: 5.0, crs: 'cartesian'})