parse_gml_psurface()

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 1872 of file lwgeom_in_gml.c.

{
        gmlSrs srs;
        xmlNodePtr xa;
        bool found = false;
        LWGEOM *geom = NULL;
 
        if (is_xlink(xnode)) xnode = get_xlink_node(xnode);
        if (xnode == NULL)
                gml_lwpgerror("invalid GML representation", 30);
 
        parse_gml_srs(xnode, &srs);
        if (*root_srid == SRID_UNKNOWN && srs.srid != SRID_UNKNOWN)
                *root_srid = srs.srid;
 
        geom = (LWGEOM *)lwcollection_construct_empty(POLYHEDRALSURFACETYPE, *root_srid, 1, 0);
 
        if (xnode->children == NULL)
                return geom;
 
        /* Looking for gml:polygonPatches */
        for (xa = xnode->children ; xa != NULL ; xa = xa->next)
        {
                if (xa->type != XML_ELEMENT_NODE) continue;
                if (!is_gml_namespace(xa, false)) continue;
                if (is_gml_element(xa, "polygonPatches"))
                {
                        found = true;
                        break;
                }
        }
        if (!found) return geom;
 
        for (xa = xa->children ; xa != NULL ; xa = xa->next)
        {
                /* PolyhedralSurface/polygonPatches/PolygonPatch */
                if (xa->type != XML_ELEMENT_NODE) continue;
                if (!is_gml_namespace(xa, false)) continue;
                if (!is_gml_element(xa, "PolygonPatch")) continue;
 
                geom = (LWGEOM*)lwpsurface_add_lwpoly((LWPSURFACE*)geom,
                                                      (LWPOLY*)parse_gml_patch(xa, hasz, root_srid));
        }
 
        return geom;
}

References get_xlink_node(), gml_lwpgerror(), is_gml_element(), 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().

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