PostGIS  2.5.0dev-r@@SVN_REVISION@@
static LWGEOM* parse_gml_surface ( xmlNodePtr  xnode,
bool *  hasz,
int *  root_srid 
)
static

Parse GML Surface (3.1.1)

Definition at line 1387 of file lwgeom_in_gml.c.

References get_xlink_node(), gml_lwpgerror(), is_gml_namespace(), is_xlink(), and parse_gml_patch().

Referenced by parse_gml().

1388 {
1389  xmlNodePtr xa;
1390  int patch;
1391  LWGEOM *geom=NULL;
1392  bool found=false;
1393 
1394  if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1395 
1396  /* Looking for gml:patches */
1397  for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1398  {
1399  if (xa->type != XML_ELEMENT_NODE) continue;
1400  if (!is_gml_namespace(xa, false)) continue;
1401  if (!strcmp((char *) xa->name, "patches"))
1402  {
1403  found = true;
1404  break;
1405  }
1406  }
1407  if (!found) gml_lwpgerror("invalid GML representation", 51);
1408 
1409  /* Processing gml:PolygonPatch */
1410  for (patch=0, xa = xa->children ; xa != NULL ; xa = xa->next)
1411  {
1412  if (xa->type != XML_ELEMENT_NODE) continue;
1413  if (!is_gml_namespace(xa, false)) continue;
1414  if (strcmp((char *) xa->name, "PolygonPatch")) continue;
1415  patch++;
1416 
1417  /* SQL/MM define ST_CurvePolygon as a single patch only,
1418  cf ISO 13249-3:2009 -> 4.2.9 (p27) */
1419  if (patch > 1) gml_lwpgerror("invalid GML representation", 52);
1420 
1421  geom = parse_gml_patch(xa, hasz, root_srid);
1422  }
1423 
1424  if (!patch) gml_lwpgerror("invalid GML representation", 53);
1425 
1426  return geom;
1427 }
static void gml_lwpgerror(char *msg, int error_code)
Definition: lwgeom_in_gml.c:81
static LWGEOM * parse_gml_patch(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML PolygonPatch (3.1.1)
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 bool is_gml_namespace(xmlNodePtr xnode, bool is_strict)
Return false if current element namespace is not a GML one Return true otherwise. ...

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