PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ 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 1845 of file lwgeom_in_gml.c.

1846{
1847 gmlSrs srs;
1848 xmlNodePtr xa;
1849 LWGEOM *geom = NULL;
1850
1851 if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1852
1853 parse_gml_srs(xnode, &srs);
1854 if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
1855 *root_srid = srs.srid;
1856
1857 geom = (LWGEOM *)lwcollection_construct_empty(COLLECTIONTYPE, *root_srid, 1, 0);
1858
1859 if (xnode->children == NULL)
1860 return geom;
1861
1862 for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1863 {
1864 if (xa->type != XML_ELEMENT_NODE) continue;
1865 if (!is_gml_namespace(xa, false)) continue;
1866
1867 /*
1868 * In GML 2.1.2 pointMember, lineStringMember and
1869 * polygonMember are parts of geometryMember
1870 * substitution group
1871 */
1872 if ( is_gml_element(xa, "pointMember")
1873 || is_gml_element(xa, "lineStringMember")
1874 || is_gml_element(xa, "polygonMember")
1875 || is_gml_element(xa, "geometryMember"))
1876 {
1877 if (xa->children == NULL) break;
1879 parse_gml(xa->children, hasz, root_srid));
1880 }
1881 }
1882
1883 return geom;
1884}
#define COLLECTIONTYPE
Definition liblwgeom.h:122
LWCOLLECTION * lwcollection_construct_empty(uint8_t type, int32_t srid, char hasz, char hasm)
LWCOLLECTION * lwcollection_add_lwgeom(LWCOLLECTION *col, const LWGEOM *geom)
Appends geom to the collection managed by col.
#define SRID_UNKNOWN
Unknown SRID value.
Definition liblwgeom.h:229
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.
static bool is_gml_element(xmlNodePtr xn, const char *gml_name)

References COLLECTIONTYPE, get_xlink_node(), is_gml_element(), 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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