PostGIS  2.3.7dev-r@@SVN_REVISION@@
static LWGEOM* parse_gml_psurface ( xmlNodePtr  xnode,
bool *  hasz,
int *  root_srid 
)
static

Parse GML PolyhedralSurface (3.1.1) Nota: It's not part of SF-2.

Definition at line 1701 of file lwgeom_in_gml.c.

References get_xlink_node(), is_gml_namespace(), is_xlink(), lwcollection_construct_empty(), lwpsurface_add_lwpoly(), parse_gml_patch(), parse_gml_srs(), POLYHEDRALSURFACETYPE, struct_gmlSrs::srid, and SRID_UNKNOWN.

Referenced by parse_gml().

1702 {
1703  gmlSrs srs;
1704  xmlNodePtr xa;
1705  bool found = false;
1706  LWGEOM *geom = NULL;
1707 
1708  if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1709 
1710  parse_gml_srs(xnode, &srs);
1711  if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
1712  *root_srid = srs.srid;
1713 
1714  geom = (LWGEOM *)lwcollection_construct_empty(POLYHEDRALSURFACETYPE, *root_srid, 1, 0);
1715 
1716  if (xnode->children == NULL)
1717  return geom;
1718 
1719  /* Looking for gml:polygonPatches */
1720  for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1721  {
1722  if (xa->type != XML_ELEMENT_NODE) continue;
1723  if (!is_gml_namespace(xa, false)) continue;
1724  if (!strcmp((char *) xa->name, "polygonPatches"))
1725  {
1726  found = true;
1727  break;
1728  }
1729  }
1730  if (!found) return geom;
1731 
1732  for (xa = xa->children ; xa != NULL ; xa = xa->next)
1733  {
1734  /* PolyhedralSurface/polygonPatches/PolygonPatch */
1735  if (xa->type != XML_ELEMENT_NODE) continue;
1736  if (!is_gml_namespace(xa, false)) continue;
1737  if (strcmp((char *) xa->name, "PolygonPatch")) continue;
1738 
1739  geom = (LWGEOM*)lwpsurface_add_lwpoly((LWPSURFACE*)geom,
1740  (LWPOLY*)parse_gml_patch(xa, hasz, root_srid));
1741  }
1742 
1743  return geom;
1744 }
static void parse_gml_srs(xmlNodePtr xnode, gmlSrs *srs)
Parse gml srsName attribute.
LWPSURFACE * lwpsurface_add_lwpoly(LWPSURFACE *mobj, const LWPOLY *obj)
Definition: lwpsurface.c:33
static LWGEOM * parse_gml_patch(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML PolygonPatch (3.1.1)
#define POLYHEDRALSURFACETYPE
Definition: liblwgeom.h:96
static xmlNodePtr get_xlink_node(xmlNodePtr xnode)
Return a xmlNodePtr on a node referenced by a XLink or NULL otherwise.
#define SRID_UNKNOWN
Unknown SRID value.
Definition: liblwgeom.h:187
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. ...
LWCOLLECTION * lwcollection_construct_empty(uint8_t type, int srid, char hasz, char hasm)
Definition: lwcollection.c:94

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