static POINTARRAY* parse_gml_coord ( xmlNodePtr  xnode, bool *  hasz  )

static

Parse gml:coord.

Definition at line 628 of file lwgeom_in_gml.c.

References gml_lwerror(), is_gml_namespace(), LW_FALSE, parse_gml_double(), ptarray_append_point(), ptarray_clone_deep(), ptarray_construct_empty(), pixval::x, POINT4D::x, pixval::y, POINT4D::y, and POINT4D::z.

Referenced by parse_gml_data().

{
        xmlNodePtr xyz;
        POINTARRAY *dpa;
        bool x,y,z;
        xmlChar *c;
        POINT4D p;

        /* HasZ?, !HasM, 1 Point */
        dpa = ptarray_construct_empty(1, 0, 1);
        
        x = y = z = false;
        for (xyz = xnode->children ; xyz != NULL ; xyz = xyz->next)
        {
                if (xyz->type != XML_ELEMENT_NODE) continue;
                if (!is_gml_namespace(xyz, false)) continue;

                if (!strcmp((char *) xyz->name, "X"))
                {
                        if (x) gml_lwerror("invalid GML representation", 21);
                        c = xmlNodeGetContent(xyz);
                        p.x = parse_gml_double((char *) c, true, true);
                        x = true;
                        xmlFree(c);
                }
                else  if (!strcmp((char *) xyz->name, "Y"))
                {
                        if (y) gml_lwerror("invalid GML representation", 22);
                        c = xmlNodeGetContent(xyz);
                        p.y = parse_gml_double((char *) c, true, true);
                        y = true;
                        xmlFree(c);
                }
                else if (!strcmp((char *) xyz->name, "Z"))
                {
                        if (z) gml_lwerror("invalid GML representation", 23);
                        c = xmlNodeGetContent(xyz);
                        p.z = parse_gml_double((char *) c, true, true);
                        z = true;
                        xmlFree(c);
                }
        }
        /* Check dimension consistancy */
        if (!x || !y) gml_lwerror("invalid GML representation", 24);
        if (!z) *hasz = false;

        ptarray_append_point(dpa, &p, LW_FALSE);
        x = y = z = false;

        return ptarray_clone_deep(dpa);
}

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