PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ lwgeom_sharedpaths()

LWGEOM* lwgeom_sharedpaths ( const LWGEOM geom1,
const LWGEOM geom2 
)

Definition at line 1465 of file liblwgeom/lwgeom_geos.c.

1466 {
1467  LWGEOM* result;
1468  int32_t srid = RESULT_SRID(geom1, geom2);
1469  uint8_t is3d = (FLAGS_GET_Z(geom1->flags) || FLAGS_GET_Z(geom2->flags));
1470  GEOSGeometry *g1, *g2, *g3;
1471 
1472  if (srid == SRID_INVALID) return NULL;
1473 
1474  initGEOS(lwnotice, lwgeom_geos_error);
1475 
1476  if (!(g1 = LWGEOM2GEOS(geom1, AUTOFIX))) GEOS_FAIL();
1477  if (!(g2 = LWGEOM2GEOS(geom2, AUTOFIX))) GEOS_FREE_AND_FAIL(g1);
1478 
1479  g3 = GEOSSharedPaths(g1, g2);
1480 
1481  if (!g3) GEOS_FREE_AND_FAIL(g1, g2);
1482  GEOSSetSRID(g3, srid);
1483 
1484  if (!(result = GEOS2LWGEOM(g3, is3d)))
1485  GEOS_FREE_AND_FAIL(g1, g2, g3);
1486 
1487  GEOS_FREE(g1, g2, g3);
1488  return result;
1489 }
char result[OUT_DOUBLE_BUFFER_SIZE]
Definition: cu_print.c:267
#define GEOS_FREE(...)
#define AUTOFIX
#define RESULT_SRID(...)
#define GEOS_FAIL()
#define GEOS_FREE_AND_FAIL(...)
GEOSGeometry * LWGEOM2GEOS(const LWGEOM *lwgeom, uint8_t autofix)
LWGEOM * GEOS2LWGEOM(const GEOSGeometry *geom, uint8_t want3d)
void lwgeom_geos_error(const char *fmt,...)
#define SRID_INVALID
Definition: liblwgeom.h:233
#define FLAGS_GET_Z(flags)
Definition: liblwgeom.h:179
void lwnotice(const char *fmt,...)
Write a notice out to the notice handler.
Definition: lwutil.c:177
lwflags_t flags
Definition: liblwgeom.h:475

References AUTOFIX, LWGEOM::flags, FLAGS_GET_Z, GEOS2LWGEOM(), GEOS_FAIL, GEOS_FREE, GEOS_FREE_AND_FAIL, LWGEOM2GEOS(), lwgeom_geos_error(), lwnotice(), result, RESULT_SRID, and SRID_INVALID.

Referenced by ST_SharedPaths().

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