PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ lwgeom_is_simple()

int lwgeom_is_simple ( const LWGEOM lwgeom)

Definition at line 1246 of file liblwgeom/lwgeom_geos.c.

1247 {
1248  GEOSGeometry* g;
1249  int simple;
1250 
1251  /* Empty is always simple */
1252  if (lwgeom_is_empty(geom)) return LW_TRUE;
1253 
1254  initGEOS(lwnotice, lwgeom_geos_error);
1255 
1256  if (!(g = LWGEOM2GEOS(geom, AUTOFIX))) return -1;
1257 
1258  simple = GEOSisSimple(g);
1259  GEOSGeom_destroy(g);
1260 
1261  if (simple == 2) /* exception thrown */
1262  {
1263  lwerror("lwgeom_is_simple: %s", lwgeom_geos_errmsg);
1264  return -1;
1265  }
1266 
1267  return simple ? LW_TRUE : LW_FALSE;
1268 }
#define AUTOFIX
char lwgeom_geos_errmsg[LWGEOM_GEOS_ERRMSG_MAXSIZE]
GEOSGeometry * LWGEOM2GEOS(const LWGEOM *lwgeom, uint8_t autofix)
void lwgeom_geos_error(const char *fmt,...)
#define LW_FALSE
Definition: liblwgeom.h:77
int lwgeom_is_empty(const LWGEOM *geom)
Return true or false depending on whether a geometry is an "empty" geometry (no vertices members)
Definition: lwgeom.c:1393
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:76
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
void lwnotice(const char *fmt,...)
Write a notice out to the notice handler.
Definition: lwutil.c:177

References AUTOFIX, LW_FALSE, LW_TRUE, lwerror(), LWGEOM2GEOS(), lwgeom_geos_errmsg, lwgeom_geos_error(), lwgeom_is_empty(), and lwnotice().

Referenced by _lwt_AddEdge(), issimple(), lwt_AddIsoEdge(), and lwt_ChangeEdgeGeom().

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