PostGIS  3.4.0dev-r@@SVN_REVISION@@

◆ lwcollection_to_wkt_sb()

static void lwcollection_to_wkt_sb ( const LWCOLLECTION collection,
stringbuffer_t sb,
int  precision,
uint8_t  variant 
)
static

Definition at line 506 of file lwout_wkt.c.

507 {
508  uint32_t i = 0;
509 
510  if ( ! (variant & WKT_NO_TYPE) )
511  {
512  stringbuffer_append_len(sb, "GEOMETRYCOLLECTION", 18); /* "GEOMETRYCOLLECTION" */
513  dimension_qualifiers_to_wkt_sb((LWGEOM*)collection, sb, variant);
514  }
515  if ( collection->ngeoms < 1 )
516  {
517  empty_to_wkt_sb(sb);
518  return;
519  }
520  stringbuffer_append_len(sb, "(", 1);
521  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are children */
522  for ( i = 0; i < collection->ngeoms; i++ )
523  {
524  if ( i > 0 )
525  stringbuffer_append_len(sb, ",", 1);
526  lwgeom_to_wkt_sb((LWGEOM*)collection->geoms[i], sb, precision, variant );
527  }
528  stringbuffer_append_len(sb, ")", 1);
529 }
static uint8_t variant
Definition: cu_in_twkb.c:26
static uint8_t precision
Definition: cu_in_twkb.c:25
#define WKT_IS_CHILD
#define WKT_NO_TYPE
Well-Known Text (WKT) Output Variant Types.
static void dimension_qualifiers_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, uint8_t variant)
Definition: lwout_wkt.c:40
static void empty_to_wkt_sb(stringbuffer_t *sb)
Definition: lwout_wkt.c:70
static void lwgeom_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:616
static void stringbuffer_append_len(stringbuffer_t *s, const char *a, size_t alen)
Append the specified string to the stringbuffer_t using known length.
Definition: stringbuffer.h:93
uint32_t ngeoms
Definition: liblwgeom.h:580
LWGEOM ** geoms
Definition: liblwgeom.h:575

References dimension_qualifiers_to_wkt_sb(), empty_to_wkt_sb(), LWCOLLECTION::geoms, lwgeom_to_wkt_sb(), LWCOLLECTION::ngeoms, precision, stringbuffer_append_len(), variant, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwgeom_to_wkt_sb().

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