PostGIS  2.3.8dev-r@@SVN_REVISION@@

◆ 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 447 of file lwout_wkt.c.

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, stringbuffer_append(), ovdump::type, LWGEOM::type, WKT_IS_CHILD, and WKT_NO_TYPE.

Referenced by lwgeom_to_wkt_sb().

448 {
449  int i = 0;
450 
451  if ( ! (variant & WKT_NO_TYPE) )
452  {
453  stringbuffer_append(sb, "MULTISURFACE"); /* "MULTISURFACE" */
455  }
456  if ( msurf->ngeoms < 1 )
457  {
458  empty_to_wkt_sb(sb);
459  return;
460  }
461  stringbuffer_append(sb, "(");
462  variant = variant | WKT_IS_CHILD; /* Inform the sub-geometries they are childre */
463  for ( i = 0; i < msurf->ngeoms; i++ )
464  {
465  int type = msurf->geoms[i]->type;
466  if ( i > 0 )
467  stringbuffer_append(sb, ",");
468  switch (type)
469  {
470  case POLYGONTYPE:
471  /* Linestring subgeoms don't get type identifiers */
472  lwpoly_to_wkt_sb((LWPOLY*)msurf->geoms[i], sb, precision, variant | WKT_NO_TYPE );
473  break;
474  case CURVEPOLYTYPE:
475  /* But circstring subgeoms *do* get type identifiers */
477  break;
478  default:
479  lwerror("lwmsurface_to_wkt_sb: Unknown type received %d - %s", type, lwtype_name(type));
480  }
481  }
482  stringbuffer_append(sb, ")");
483 }
uint8_t variant
Definition: cu_in_twkb.c:26
#define POLYGONTYPE
Definition: liblwgeom.h:86
#define CURVEPOLYTYPE
Definition: liblwgeom.h:93
static void lwcurvepoly_to_wkt_sb(const LWCURVEPOLY *cpoly, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:351
static void dimension_qualifiers_to_wkt_sb(const LWGEOM *geom, stringbuffer_t *sb, uint8_t variant)
Definition: lwout_wkt.c:39
static void lwpoly_to_wkt_sb(const LWPOLY *poly, stringbuffer_t *sb, int precision, uint8_t variant)
Definition: lwout_wkt.c:169
const char * lwtype_name(uint8_t type)
Return the type name string associated with a type number (e.g.
Definition: lwutil.c:216
#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
int ngeoms
Definition: liblwgeom.h:558
LWGEOM ** geoms
Definition: liblwgeom.h:560
uint8_t type
Definition: liblwgeom.h:395
type
Definition: ovdump.py:41
void lwerror(const char *fmt,...)
Write a notice out to the error handler.
Definition: lwutil.c:102
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