Changes between Version 3 and Version 4 of DevClusteringFunctions


Ignore:
Timestamp:
Jan 26, 2015, 4:20:55 PM (9 years ago)
Author:
dbaston
Comment:

rename functions per discussion

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  • DevClusteringFunctions

    v3 v4  
    33----
    44
    5 {{{geometry[] ST_AccumIntersecting(geometry geom)}}}
     5{{{geometry[] ST_ClusterIntersecting(geometry geom)}}}
    66
    77Aggregate function returning an array of GeometryCollections representing the connected components of a set of geometries.
    … …  
    1717
    1818
    19 {{{geometry[] ST_AccumWithinDistance(geometry geom, double precision distance)}}}
     19{{{geometry[] ST_ClusterWithin(geometry geom, double precision distance)}}}
    2020
    2121Aggregate function returning an array of GeometryCollections?/MultiPoints?, where any component is reachable from any other component with jump of no more than the specified distance.
    2222
    23 - like ST_AccumIntersecting, but uses a distance threshold rather than intersection when determining if two geometries should be included in the same component.  Could have an implementation very similar to ST_AccumIntersecting, or could be restricted to points and maybe have a more efficient implementation.[[br]]
     23- like ST_ClusterIntersecting, but uses a distance threshold rather than intersection when determining if two geometries should be included in the same component.  Could have an implementation very similar to ST_ClusterIntersecting, or could be restricted to points and maybe have a more efficient implementation.[[br]]
    2424- differs from kmeans in that a distance is provided, not a number of clusters[[br]]
    2525