PostGIS 3.7.0dev-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 1878 of file lwgeom_in_gml.c.

1879{
1880 gmlSrs srs;
1881 xmlNodePtr xa;
1882 LWGEOM *geom = NULL;
1883
1884 if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
1885 if (xnode == NULL)
1886 gml_lwpgerror("invalid GML representation", 30);
1887
1888 parse_gml_srs(xnode, &srs);
1889 if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
1890 *root_srid = srs.srid;
1891
1892 geom = (LWGEOM *)lwcollection_construct_empty(COLLECTIONTYPE, *root_srid, 1, 0);
1893
1894 if (xnode->children == NULL)
1895 return geom;
1896
1897 for (xa = xnode->children ; xa != NULL ; xa = xa->next)
1898 {
1899 if (xa->type != XML_ELEMENT_NODE) continue;
1900 if (!is_gml_namespace(xa, false)) continue;
1901
1902 /*
1903 * In GML 2.1.2 pointMember, lineStringMember and
1904 * polygonMember are parts of geometryMember
1905 * substitution group
1906 */
1907 if ( is_gml_element(xa, "pointMember")
1908 || is_gml_element(xa, "lineStringMember")
1909 || is_gml_element(xa, "polygonMember")
1910 || is_gml_element(xa, "geometryMember"))
1911 {
1912 if (xa->children == NULL) break;
1914 parse_gml(xa->children, hasz, root_srid));
1915 }
1916 }
1917
1918 return geom;
1919}
#define COLLECTIONTYPE
Definition liblwgeom.h:108
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:215
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 void gml_lwpgerror(char *msg, __attribute__((__unused__)) int error_code)
static bool is_gml_element(xmlNodePtr xn, const char *gml_name)

References COLLECTIONTYPE, get_xlink_node(), gml_lwpgerror(), 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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