This is the multi-page printable view of this section. Click here to print.
Clustering Functions
1 - func.ST_ClusterWithin
Aggregate function that returns an array of GeometryCollections that represent a set of geometries separated by a specified distance
Description
PlaidCloud expressions and filters provide use of most non-administrative PostGIS methods. PostGIS methods are accessed by prefixing the standard method name with func..
Examples
SQL
ST_ClusterWithin(geometry set g, float8 distance);
PlaidCloud
func.ST_ClusterWithin(geometry set g, float8 distance)
References
PostGIS Official Documentation for this method can be found here.
Additional capabilities and usage examples can be found in the PostGIS documentation.
2 - func.ST_ClusterIntersecting
ClusterIntersecting is an aggregate function that returns an array of GeometryCollections that represent an interconnected set of geometries
Description
PlaidCloud expressions and filters provide use of most non-administrative PostGIS methods. PostGIS methods are accessed by prefixing the standard method name with func..
Examples
SQL
ST_ClusterIntersecting(geometry set g);
PlaidCloud
func.ST_ClusterIntersecting(geometry set g)
References
PostGIS Official Documentation for this method can be found here.
Additional capabilities and usage examples can be found in the PostGIS documentation.