PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ parse_gml()

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

Parse GML.

Definition at line 1948 of file lwgeom_in_gml.c.

1949{
1950 xmlNodePtr xa = xnode;
1951 gmlSrs srs;
1952
1953 /* Scroll forward to the root node */
1954 while (xa != NULL &&
1955 (xa->type != XML_ELEMENT_NODE || !is_gml_namespace(xa, false)))
1956 {
1957 xa = xa->next;
1958 }
1959
1960 if (xa == NULL) gml_lwpgerror("invalid GML representation", 55);
1961
1962 parse_gml_srs(xa, &srs);
1963 if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
1964 {
1965 *root_srid = srs.srid;
1966 }
1967
1968 if (is_gml_element(xa, "Point"))
1969 return parse_gml_point(xa, hasz, root_srid);
1970
1971 if (is_gml_element(xa, "LineString"))
1972 return parse_gml_line(xa, hasz, root_srid);
1973
1974 if (is_gml_element(xa, "Curve"))
1975 return parse_gml_curve(xa, hasz, root_srid);
1976
1977 if (is_gml_element(xa, "LinearRing"))
1978 return parse_gml_linearring(xa, hasz, root_srid);
1979
1980 if (is_gml_element(xa, "Polygon"))
1981 return parse_gml_polygon(xa, hasz, root_srid);
1982
1983 if (is_gml_element(xa, "Triangle"))
1984 return parse_gml_triangle(xa, hasz, root_srid);
1985
1986 if (is_gml_element(xa, "Surface"))
1987 return parse_gml_surface(xa, hasz, root_srid);
1988
1989 if (is_gml_element(xa, "MultiPoint"))
1990 return parse_gml_mpoint(xa, hasz, root_srid);
1991
1992 if (is_gml_element(xa, "MultiLineString"))
1993 return parse_gml_mline(xa, hasz, root_srid);
1994
1995 if (is_gml_element(xa, "MultiCurve"))
1996 return parse_gml_mcurve(xa, hasz, root_srid);
1997
1998 if (is_gml_element(xa, "MultiPolygon"))
1999 return parse_gml_mpoly(xa, hasz, root_srid);
2000
2001 if (is_gml_element(xa, "MultiSurface"))
2002 return parse_gml_msurface(xa, hasz, root_srid);
2003
2004 if (is_gml_element(xa, "PolyhedralSurface"))
2005 return parse_gml_psurface(xa, hasz, root_srid);
2006
2007 if (is_gml_element(xa, "Tin") ||
2008 is_gml_element(xa, "TriangulatedSurface"))
2009 return parse_gml_tin(xa, hasz, root_srid);
2010
2011 if (is_gml_element(xa, "MultiGeometry"))
2012 return parse_gml_coll(xa, hasz, root_srid);
2013
2014 gml_lwpgerror("invalid GML representation", 56);
2015 return NULL; /* Never reach */
2016}
#define SRID_UNKNOWN
Unknown SRID value.
Definition liblwgeom.h:229
static LWGEOM * parse_gml_triangle(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML Triangle (3.1.1)
static LWGEOM * parse_gml_mline(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse gml:MultiLineString (2.1.2, 3.1.1)
static LWGEOM * parse_gml_tin(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML Tin (and TriangulatedSurface) (3.1.1)
static LWGEOM * parse_gml_surface(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML Surface (3.1.1)
static LWGEOM * parse_gml_curve(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML Curve (3.1.1)
static LWGEOM * parse_gml_coll(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML MultiGeometry (2.1.2, 3.1.1)
static LWGEOM * parse_gml_linearring(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML LinearRing (3.1.1)
static LWGEOM * parse_gml_mpoly(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML MultiPolygon (2.1.2, 3.1.1)
static LWGEOM * parse_gml_msurface(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML MultiSurface (3.1.1)
static LWGEOM * parse_gml_line(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML lineString (2.1.2, 3.1.1)
static LWGEOM * parse_gml_mpoint(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse gml:MultiPoint (2.1.2, 3.1.1)
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 LWGEOM * parse_gml_point(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML point (2.1.2, 3.1.1)
static LWGEOM * parse_gml_polygon(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML Polygon (2.1.2, 3.1.1)
static void gml_lwpgerror(char *msg, __attribute__((__unused__)) int error_code)
static LWGEOM * parse_gml_mcurve(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML MultiCurve (3.1.1)
static LWGEOM * parse_gml_psurface(xmlNodePtr xnode, bool *hasz, int *root_srid)
Parse GML PolyhedralSurface (3.1.1) Nota: It's not part of SF-2.
static bool is_gml_element(xmlNodePtr xn, const char *gml_name)

References gml_lwpgerror(), is_gml_element(), is_gml_namespace(), parse_gml_coll(), parse_gml_curve(), parse_gml_line(), parse_gml_linearring(), parse_gml_mcurve(), parse_gml_mline(), parse_gml_mpoint(), parse_gml_mpoly(), parse_gml_msurface(), parse_gml_point(), parse_gml_polygon(), parse_gml_psurface(), parse_gml_srs(), parse_gml_surface(), parse_gml_tin(), parse_gml_triangle(), struct_gmlSrs::srid, and SRID_UNKNOWN.

Referenced by lwgeom_from_gml(), parse_gml_coll(), parse_gml_mcurve(), parse_gml_mline(), parse_gml_mpoint(), parse_gml_mpoly(), and parse_gml_msurface().

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