PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ 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:
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
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition lwutil.c:216
#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
#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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