PostGIS  3.1.6dev-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 502 of file lwout_wkt.c.

503 {
504  uint32_t i = 0;
505 
506  if ( ! (variant & WKT_NO_TYPE) )
507  {
508  stringbuffer_append_len(sb, "GEOMETRYCOLLECTION", 18); /* "GEOMETRYCOLLECTION" */
509  dimension_qualifiers_to_wkt_sb((LWGEOM*)collection, sb, variant);
510  }
511  if ( collection->ngeoms < 1 )
512  {
513  empty_to_wkt_sb(sb);
514  return;
515  }
516  stringbuffer_append_len(sb, "(", 1);
517  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are children */
518  for ( i = 0; i < collection->ngeoms; i++ )
519  {
520  if ( i > 0 )
521  stringbuffer_append_len(sb, ",", 1);
522  lwgeom_to_wkt_sb((LWGEOM*)collection->geoms[i], sb, precision, variant );
523  }
524  stringbuffer_append_len(sb, ")", 1);
525 }
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:612
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:91
uint32_t ngeoms
Definition: liblwgeom.h:594
LWGEOM ** geoms
Definition: liblwgeom.h:589

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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