PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ lwmsurface_to_wkt_sb()

static void lwmsurface_to_wkt_sb ( const LWMSURFACE msurf,
stringbuffer_t sb,
int  precision,
uint8_t  variant 
)
static

Definition at line 453 of file lwout_wkt.c.

454{
455 uint32_t i = 0;
456
457 if ( ! (variant & WKT_NO_TYPE) )
458 {
459 stringbuffer_append(sb, "MULTISURFACE"); /* "MULTISURFACE" */
461 }
462 if ( msurf->ngeoms < 1 )
463 {
464 empty_to_wkt_sb(sb);
465 return;
466 }
467 stringbuffer_append(sb, "(");
468 variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
469 for ( i = 0; i < msurf->ngeoms; i++ )
470 {
471 int type = msurf->geoms[i]->type;
472 if ( i > 0 )
473 stringbuffer_append(sb, ",");
474 switch (type)
475 {
476 case POLYGONTYPE:
477 /* Linestring subgeoms don't get type identifiers */
479 break;
480 case CURVEPOLYTYPE:
481 /* But circstring subgeoms *do* get type identifiers */
483 break;
484 default:
485 lwerror("lwmsurface_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
486 }
487 }
488 stringbuffer_append(sb, ")");
489}
static uint8_t variant
Definition cu_in_twkb.c:26
static uint8_t precision
Definition cu_in_twkb.c:25
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition lwutil.c:216
#define CURVEPOLYTYPE
Definition liblwgeom.h:125
#define POLYGONTYPE
Definition liblwgeom.h:118
#define WKT_IS_CHILD
#define WKT_NO_TYPE
Well-Known Text (WKT) Output Variant Types.
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition lwutil.c:190
static void dimension_qualifiers_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, uint8_t variant)
Definition lwout_wkt.c:39
static void empty_to_wkt_sb(stringbuffer_t *sb)
Definition lwout_wkt.c:69
static void lwcurvepoly_to_wkt_sb(const LWCURVEPOLY *cpoly, stringbuffer_t *sb, int precision, uint8_t variant)
Definition lwout_wkt.c:357
static void lwpoly_to_wkt_sb(const LWPOLY *poly, stringbuffer_t *sb, int precision, uint8_t variant)
Definition lwout_wkt.c:175
static void stringbuffer_append(stringbuffer_t *s, const char *a)
Append the specified string to the stringbuffer_t.
uint8_t type
Definition liblwgeom.h:448
uint32_t ngeoms
Definition liblwgeom.h:622
LWGEOM ** geoms
Definition liblwgeom.h:617

References CURVEPOLYTYPE, dimension_qualifiers_to_wkt_sb(), empty_to_wkt_sb(), LWMSURFACE::geoms, lwcurvepoly_to_wkt_sb(), lwerror(), lwpoly_to_wkt_sb(), lwtype_name(), LWMSURFACE::ngeoms, POLYGONTYPE, precision, stringbuffer_append(), LWGEOM::type, variant, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwgeom_to_wkt_sb().

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