PostGIS  2.5.0beta2dev-r@@SVN_REVISION@@

◆ parse_gml_surface()

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

Parse GML Surface (3.1.1)

Definition at line 1388 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().

1389 {
1390  xmlNodePtr xa;
1391  int patch;
1392  LWGEOM *geom=NULL;
1393  bool found=false;
1394 
1395  if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1396 
1397  /* Looking for gml:patches */
1398  for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1399  {
1400  if (xa->type != XML_ELEMENT_NODE) continue;
1401  if (!is_gml_namespace(xa, false)) continue;
1402  if (!strcmp((char *) xa->name, "patches"))
1403  {
1404  found = true;
1405  break;
1406  }
1407  }
1408  if (!found) gml_lwpgerror("invalid GML representation", 51);
1409 
1410  /* Processing gml:PolygonPatch */
1411  for (patch=0, xa = xa->children ; xa != NULL ; xa = xa->next)
1412  {
1413  if (xa->type != XML_ELEMENT_NODE) continue;
1414  if (!is_gml_namespace(xa, false)) continue;
1415  if (strcmp((char *) xa->name, "PolygonPatch")) continue;
1416  patch++;
1417 
1418  /* SQL/MM define ST_CurvePolygon as a single patch only,
1419  cf ISO 13249-3:2009 -> 4.2.9 (p27) */
1420  if (patch > 1) gml_lwpgerror("invalid GML representation", 52);
1421 
1422  geom = parse_gml_patch(xa, hasz, root_srid);
1423  }
1424 
1425  if (!patch) gml_lwpgerror("invalid GML representation", 53);
1426 
1427  return geom;
1428 }
static void gml_lwpgerror(char *msg, __attribute__((__unused__)) int error_code)
Definition: lwgeom_in_gml.c:82
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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