PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ lwpoly_to_kml2_sb()

static int lwpoly_to_kml2_sb ( const LWPOLY poly,
int  precision,
const char *  prefix,
stringbuffer_t sb 
)
static

Definition at line 150 of file lwout_kml.c.

References LW_FAILURE, LW_SUCCESS, LWPOLY::nrings, ptarray_to_kml2_sb(), LWPOLY::rings, and stringbuffer_aprintf().

Referenced by lwgeom_to_kml2_sb().

151 {
152  uint32_t i;
153  int rv;
154 
155  /* Open polygon */
156  if ( stringbuffer_aprintf(sb, "<%sPolygon>", prefix) < 0 ) return LW_FAILURE;
157  for ( i = 0; i < poly->nrings; i++ )
158  {
159  /* Inner or outer ring opening tags */
160  if( i )
161  rv = stringbuffer_aprintf(sb, "<%sinnerBoundaryIs><%sLinearRing><%scoordinates>", prefix, prefix, prefix);
162  else
163  rv = stringbuffer_aprintf(sb, "<%souterBoundaryIs><%sLinearRing><%scoordinates>", prefix, prefix, prefix);
164  if ( rv < 0 ) return LW_FAILURE;
165 
166  /* Coordinate array */
167  if ( ptarray_to_kml2_sb(poly->rings[i], precision, sb) == LW_FAILURE ) return LW_FAILURE;
168 
169  /* Inner or outer ring closing tags */
170  if( i )
171  rv = stringbuffer_aprintf(sb, "</%scoordinates></%sLinearRing></%sinnerBoundaryIs>", prefix, prefix, prefix);
172  else
173  rv = stringbuffer_aprintf(sb, "</%scoordinates></%sLinearRing></%souterBoundaryIs>", prefix, prefix, prefix);
174  if ( rv < 0 ) return LW_FAILURE;
175  }
176  /* Close polygon */
177  if ( stringbuffer_aprintf(sb, "</%sPolygon>", prefix) < 0 ) return LW_FAILURE;
178 
179  return LW_SUCCESS;
180 }
#define LW_SUCCESS
Definition: liblwgeom.h:79
uint32_t nrings
Definition: liblwgeom.h:457
#define LW_FAILURE
Definition: liblwgeom.h:78
int stringbuffer_aprintf(stringbuffer_t *s, const char *fmt,...)
Appends a formatted string to the current string buffer, using the format and argument list provided...
Definition: stringbuffer.c:253
unsigned int uint32_t
Definition: uthash.h:78
POINTARRAY ** rings
Definition: liblwgeom.h:459
uint8_t precision
Definition: cu_in_twkb.c:25
static int ptarray_to_kml2_sb(const POINTARRAY *pa, int precision, stringbuffer_t *sb)
Definition: lwout_kml.c:94
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