PostGIS  3.0.6dev-r@@SVN_REVISION@@

◆ lwgeom_to_wkb_size()

static size_t lwgeom_to_wkb_size ( const LWGEOM geom,
uint8_t  variant 
)
static

Definition at line 674 of file lwout_wkb.c.

675 {
676  size_t size = 0;
677 
678  if ( geom == NULL )
679  return 0;
680 
681  /* Short circuit out empty geometries */
682  if ( (!(variant & WKB_EXTENDED)) && lwgeom_is_empty(geom) )
683  {
684  return empty_to_wkb_size(geom, variant);
685  }
686 
687  switch ( geom->type )
688  {
689  case POINTTYPE:
690  size += lwpoint_to_wkb_size((LWPOINT*)geom, variant);
691  break;
692 
693  /* LineString and CircularString both have points elements */
694  case CIRCSTRINGTYPE:
695  case LINETYPE:
696  size += lwline_to_wkb_size((LWLINE*)geom, variant);
697  break;
698 
699  /* Polygon has nrings and rings elements */
700  case POLYGONTYPE:
701  size += lwpoly_to_wkb_size((LWPOLY*)geom, variant);
702  break;
703 
704  /* Triangle has one ring of three points */
705  case TRIANGLETYPE:
706  size += lwtriangle_to_wkb_size((LWTRIANGLE*)geom, variant);
707  break;
708 
709  /* All these Collection types have ngeoms and geoms elements */
710  case MULTIPOINTTYPE:
711  case MULTILINETYPE:
712  case MULTIPOLYGONTYPE:
713  case COMPOUNDTYPE:
714  case CURVEPOLYTYPE:
715  case MULTICURVETYPE:
716  case MULTISURFACETYPE:
717  case COLLECTIONTYPE:
719  case TINTYPE:
721  break;
722 
723  /* Unknown type! */
724  default:
725  lwerror("%s: Unsupported geometry type: %s", __func__, lwtype_name(geom->type));
726  }
727 
728  return size;
729 }
static uint8_t variant
Definition: cu_in_twkb.c:26
#define COLLECTIONTYPE
Definition: liblwgeom.h:122
#define COMPOUNDTYPE
Definition: liblwgeom.h:124
#define CURVEPOLYTYPE
Definition: liblwgeom.h:125
#define MULTILINETYPE
Definition: liblwgeom.h:120
#define MULTISURFACETYPE
Definition: liblwgeom.h:127
#define LINETYPE
Definition: liblwgeom.h:117
#define MULTIPOINTTYPE
Definition: liblwgeom.h:119
#define POINTTYPE
LWTYPE numbers, used internally by PostGIS.
Definition: liblwgeom.h:116
#define TINTYPE
Definition: liblwgeom.h:130
#define MULTIPOLYGONTYPE
Definition: liblwgeom.h:121
#define POLYGONTYPE
Definition: liblwgeom.h:118
#define POLYHEDRALSURFACETYPE
Definition: liblwgeom.h:128
#define CIRCSTRINGTYPE
Definition: liblwgeom.h:123
#define WKB_EXTENDED
Definition: liblwgeom.h:2123
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:216
#define MULTICURVETYPE
Definition: liblwgeom.h:126
#define TRIANGLETYPE
Definition: liblwgeom.h:129
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
static int lwgeom_is_empty(const LWGEOM *geom)
Return true or false depending on whether a geometry is an "empty" geometry (no vertices members)
Definition: lwinline.h:193
static size_t lwcollection_to_wkb_size(const LWCOLLECTION *col, uint8_t variant)
Definition: lwout_wkb.c:628
static size_t lwtriangle_to_wkb_size(const LWTRIANGLE *tri, uint8_t variant)
Definition: lwout_wkb.c:526
static size_t lwpoint_to_wkb_size(const LWPOINT *pt, uint8_t variant)
Definition: lwout_wkb.c:441
static size_t empty_to_wkb_size(const LWGEOM *geom, uint8_t variant)
Definition: lwout_wkb.c:319
static size_t lwpoly_to_wkb_size(const LWPOLY *poly, uint8_t variant)
Definition: lwout_wkb.c:573
static size_t lwline_to_wkb_size(const LWLINE *line, uint8_t variant)
Definition: lwout_wkb.c:487
uint8_t type
Definition: liblwgeom.h:448

References CIRCSTRINGTYPE, COLLECTIONTYPE, COMPOUNDTYPE, CURVEPOLYTYPE, empty_to_wkb_size(), LINETYPE, lwcollection_to_wkb_size(), lwerror(), lwgeom_is_empty(), lwline_to_wkb_size(), lwpoint_to_wkb_size(), lwpoly_to_wkb_size(), lwtriangle_to_wkb_size(), lwtype_name(), MULTICURVETYPE, MULTILINETYPE, MULTIPOINTTYPE, MULTIPOLYGONTYPE, MULTISURFACETYPE, POINTTYPE, POLYGONTYPE, POLYHEDRALSURFACETYPE, TINTYPE, TRIANGLETYPE, LWGEOM::type, LWPOINT::type, variant, and WKB_EXTENDED.

Referenced by lwcollection_to_wkb_size(), and lwgeom_to_wkb().

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