My Oracle Support Banner

Oracle Spatial Concavehull Function Does Not Work Return The Expected Result (Doc ID 1418788.1)

Last updated on FEBRUARY 08, 2017

Applies to:

Oracle Spatial - Version: 11.2.0.2 and later   [Release: 11.2 and later ]
Information in this document applies to any platform.

Symptoms


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

the statement

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

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
  Symptoms
  Cause
  Solution
  References

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.