Oracle Spatial Concavehull Function Does Not Work Return The Expected Result
(Doc ID 1418788.1)
Last updated on JANUARY 16, 2020
Applies to:Oracle Spatial and Graph - Version 188.8.131.52 and later
Information in this document applies to any platform.
The result of the SDO_GEOM.SDO_CONCAVEHULL between two polygons is a polygon with a shape not expected.
For example, considering these two geometries
SELECT SDO_GEOM.SDO_CONCAVEHULL( (SELECT SDO_AGGR_UNION(DSYS.SDOAGGRTYPE(A.GEOLOC, 0.005)) FROM TEST_YAPI_FOR_TAR A) , 0.005 ) FROM DUAL;
returns the following geometry
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