PostGIS  2.5.1dev-r@@SVN_REVISION@@

◆ lwcompound_to_wkt_sb()

static void lwcompound_to_wkt_sb ( const LWCOMPOUND comp,
stringbuffer_t sb,
int  precision,
uint8_t  variant 
)
static

Definition at line 312 of file lwout_wkt.c.

References CIRCSTRINGTYPE, dimension_qualifiers_to_wkt_sb(), empty_to_wkt_sb(), LWCOMPOUND::geoms, LINETYPE, lwcircstring_to_wkt_sb(), lwerror(), lwline_to_wkt_sb(), lwtype_name(), LWCOMPOUND::ngeoms, stringbuffer_append(), ovdump::type, LWGEOM::type, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwcurvepoly_to_wkt_sb(), lwgeom_to_wkt_sb(), and lwmcurve_to_wkt_sb().

313 {
314  uint32_t i = 0;
315 
316  if ( ! (variant & WKT_NO_TYPE) )
317  {
318  stringbuffer_append(sb, "COMPOUNDCURVE"); /* "COMPOUNDCURVE" */
320  }
321  if ( comp->ngeoms < 1 )
322  {
323  empty_to_wkt_sb(sb);
324  return;
325  }
326 
327  stringbuffer_append(sb, "(");
328  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
329  for ( i = 0; i < comp->ngeoms; i++ )
330  {
331  int type = comp->geoms[i]->type;
332  if ( i > 0 )
333  stringbuffer_append(sb, ",");
334  /* Linestring subgeoms don't get type identifiers */
335  if ( type == LINETYPE )
336  {
337  lwline_to_wkt_sb((LWLINE*)comp->geoms[i], sb, precision, variant | WKT_NO_TYPE );
338  }
339  /* But circstring subgeoms *do* get type identifiers */
340  else if ( type == CIRCSTRINGTYPE )
341  {
343  }
344  else
345  {
346  lwerror("lwcompound_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
347  }
348  }
349  stringbuffer_append(sb, ")");
350 }
#define LINETYPE
Definition: liblwgeom.h:85
uint8_t variant
Definition: cu_in_twkb.c:26
static void dimension_qualifiers_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, uint8_t variant)
Definition: lwout_wkt.c:39
static void lwcircstring_to_wkt_sb(const LWCIRCSTRING *circ, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:202
LWGEOM ** geoms
Definition: liblwgeom.h:524
unsigned int uint32_t
Definition: uthash.h:78
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:218
uint32_t ngeoms
Definition: liblwgeom.h:522
#define WKT_IS_CHILD
uint8_t precision
Definition: cu_in_twkb.c:25
#define WKT_NO_TYPE
Well-Known Text (WKT) Output Variant Types.
static void empty_to_wkt_sb(stringbuffer_t *sb)
Definition: lwout_wkt.c:69
void stringbuffer_append(stringbuffer_t *s, const char *a)
Append the specified string to the stringbuffer_t.
Definition: stringbuffer.c:134
uint8_t type
Definition: liblwgeom.h:398
type
Definition: ovdump.py:41
#define CIRCSTRINGTYPE
Definition: liblwgeom.h:91
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:190
static void lwline_to_wkt_sb(const LWLINE *line, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:156
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