PostGIS  2.1.10dev-r@@SVN_REVISION@@
void errorIfGeometryCollection ( GSERIALIZED g1,
GSERIALIZED g2 
)

Throws an ereport ERROR if either geometry is a COLLECTIONTYPE.

Additionally displays a HINT of the first 80 characters of the WKT representation of the problematic geometry so a user knows which parameter and which geometry is causing the problem.

Definition at line 1651 of file postgis/lwgeom_geos.c.

References COLLECTIONTYPE, gserialized_get_type(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_to_wkt(), lwmessage_truncate(), and WKT_SFSQL.

Referenced by contains(), containsproperly(), coveredby(), covers(), crosses(), disjoint(), geos_intersects(), overlaps(), relate_full(), relate_pattern(), ST_Equals(), and touches().

1652 {
1653  int t1 = gserialized_get_type(g1);
1654  int t2 = gserialized_get_type(g2);
1655 
1656  char *hintmsg;
1657  char *hintwkt;
1658  size_t hintsz;
1659  LWGEOM *lwgeom;
1660 
1661  if ( t1 == COLLECTIONTYPE)
1662  {
1663  lwgeom = lwgeom_from_gserialized(g1);
1664  hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
1665  hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
1666  ereport(ERROR,
1667  (errmsg("Relate Operation called with a LWGEOMCOLLECTION type. This is unsupported."),
1668  errhint("Change argument 1: '%s'", hintmsg))
1669  );
1670  pfree(hintwkt);
1671  pfree(hintmsg);
1672  lwgeom_free(lwgeom);
1673  }
1674  else if (t2 == COLLECTIONTYPE)
1675  {
1676  lwgeom = lwgeom_from_gserialized(g2);
1677  hintwkt = lwgeom_to_wkt(lwgeom, WKT_SFSQL, DBL_DIG, &hintsz);
1678  hintmsg = lwmessage_truncate(hintwkt, 0, hintsz-1, 80, 1);
1679  ereport(ERROR,
1680  (errmsg("Relate Operation called with a LWGEOMCOLLECTION type. This is unsupported."),
1681  errhint("Change argument 2: '%s'", hintmsg))
1682  );
1683  pfree(hintwkt);
1684  pfree(hintmsg);
1685  lwgeom_free(lwgeom);
1686  }
1687 }
uint32_t gserialized_get_type(const GSERIALIZED *s)
Extract the geometry type from the serialized form (it hides in the anonymous data area...
Definition: g_serialized.c:56
char * lwgeom_to_wkt(const LWGEOM *geom, uint8_t variant, int precision, size_t *size_out)
WKT emitter function.
Definition: lwout_wkt.c:655
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1006
char * lwmessage_truncate(char *str, int startpos, int endpos, int maxlength, int truncdirection)
Definition: lwutil.c:240
#define WKT_SFSQL
Definition: liblwgeom.h:1777
#define COLLECTIONTYPE
Definition: liblwgeom.h:66

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