PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ parse_gml_coll()

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

Parse GML MultiGeometry (2.1.2, 3.1.1)

Definition at line 1766 of file lwgeom_in_gml.c.

1767 {
1768  gmlSrs srs;
1769  xmlNodePtr xa;
1770  LWGEOM *geom = NULL;
1771 
1772  if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1773 
1774  parse_gml_srs(xnode, &srs);
1775  if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
1776  *root_srid = srs.srid;
1777 
1778  geom = (LWGEOM *)lwcollection_construct_empty(COLLECTIONTYPE, *root_srid, 1, 0);
1779 
1780  if (xnode->children == NULL)
1781  return geom;
1782 
1783  for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1784  {
1785  if (xa->type != XML_ELEMENT_NODE) continue;
1786  if (!is_gml_namespace(xa, false)) continue;
1787 
1788  /*
1789  * In GML 2.1.2 pointMember, lineStringMember and
1790  * polygonMember are parts of geometryMember
1791  * substitution group
1792  */
1793  if ( !strcmp((char *) xa->name, "pointMember")
1794  || !strcmp((char *) xa->name, "lineStringMember")
1795  || !strcmp((char *) xa->name, "polygonMember")
1796  || !strcmp((char *) xa->name, "geometryMember"))
1797  {
1798  if (xa->children == NULL) break;
1799  geom = (LWGEOM*)lwcollection_add_lwgeom((LWCOLLECTION *)geom,
1800  parse_gml(xa->children, hasz, root_srid));
1801  }
1802  }
1803 
1804  return geom;
1805 }
#define COLLECTIONTYPE
Definition: liblwgeom.h:91
LWCOLLECTION * lwcollection_construct_empty(uint8_t type, int srid, char hasz, char hasm)
Definition: lwcollection.c:94
LWCOLLECTION * lwcollection_add_lwgeom(LWCOLLECTION *col, const LWGEOM *geom)
Appends geom to the collection managed by col.
Definition: lwcollection.c:187
#define SRID_UNKNOWN
Unknown SRID value.
Definition: liblwgeom.h:188
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 COLLECTIONTYPE, get_xlink_node(), is_gml_namespace(), is_xlink(), lwcollection_add_lwgeom(), lwcollection_construct_empty(), parse_gml(), parse_gml_srs(), struct_gmlSrs::srid, and SRID_UNKNOWN.

Referenced by parse_gml().

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