PostGIS  3.4.0dev-r@@SVN_REVISION@@

◆ parse_gml_mcurve()

static LWGEOM* parse_gml_mcurve ( xmlNodePtr  xnode,
bool *  hasz,
int *  root_srid 
)
static

Parse GML MultiCurve (3.1.1)

Definition at line 1634 of file lwgeom_in_gml.c.

1635 {
1636  gmlSrs srs;
1637  xmlNodePtr xa, xb;
1638  LWGEOM *geom = NULL;
1639 
1640  if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1641 
1642  parse_gml_srs(xnode, &srs);
1643  if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
1644  *root_srid = srs.srid;
1645 
1646  geom = (LWGEOM *)lwcollection_construct_empty(MULTILINETYPE, *root_srid, 1, 0);
1647 
1648  if (xnode->children == NULL)
1649  return geom;
1650 
1651  for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1652  {
1653 
1654  /* MultiCurve/curveMember */
1655  if (xa->type != XML_ELEMENT_NODE) continue;
1656  if (!is_gml_namespace(xa, false)) continue;
1657  if (!strcmp((char *) xa->name, "curveMembers"))
1658  {
1659  for (xb = xa->children ; xb != NULL ; xb = xb->next)
1660  {
1661  if (xb != NULL)
1662  geom = (LWGEOM*)lwmline_add_lwline((LWMLINE*)geom,
1663  (LWLINE*)parse_gml(xb, hasz, root_srid));
1664  }
1665  }
1666  else if (!strcmp((char *) xa->name, "curveMember"))
1667  {
1668  if (xa->children != NULL)
1669  geom = (LWGEOM*)lwmline_add_lwline((LWMLINE*)geom,
1670  (LWLINE*)parse_gml(xa->children, hasz, root_srid));
1671  }
1672  }
1673 
1674  return geom;
1675 }
#define MULTILINETYPE
Definition: liblwgeom.h:106
LWMLINE * lwmline_add_lwline(LWMLINE *mobj, const LWLINE *obj)
Definition: lwmline.c:46
LWCOLLECTION * lwcollection_construct_empty(uint8_t type, int32_t srid, char hasz, char hasm)
Definition: lwcollection.c:92
#define SRID_UNKNOWN
Unknown SRID value.
Definition: liblwgeom.h:215
static xmlNodePtr get_xlink_node(xmlNodePtr xnode)
Return a xmlNodePtr on a node referenced by a XLink or NULL otherwise.
static bool is_xlink(xmlNodePtr node)
Return true if current node contains a simple XLink Return false otherwise.
static LWGEOM * parse_gml(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML.
static bool is_gml_namespace(xmlNodePtr xnode, bool is_strict)
Return false if current element namespace is not a GML one Return true otherwise.
static void parse_gml_srs(xmlNodePtr xnode, gmlSrs *srs)
Parse gml srsName attribute.

References get_xlink_node(), is_gml_namespace(), is_xlink(), lwcollection_construct_empty(), lwmline_add_lwline(), MULTILINETYPE, parse_gml(), parse_gml_srs(), struct_gmlSrs::srid, and SRID_UNKNOWN.

Referenced by parse_gml().

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