parse_geojson_coord()

static int parse_geojson_coord ( json_object *  poObj, int *  hasz, POINTARRAY *  pa  )

inlinestatic

Definition at line 106 of file lwin_geojson.c.

{
        POINT4D pt = {0, 0, 0, 0};
 
        if (json_object_get_type(poObj) == json_type_array)
        {
                json_object *poObjCoord = NULL;
                const int nSize = json_object_array_length(poObj);
                if (nSize < 2)
                {
                        lwerror("Too few ordinates in GeoJSON");
                        return LW_FAILURE;
                }
 
                /* Read X coordinate */
                poObjCoord = json_object_array_get_idx(poObj, 0);
                pt.x = json_object_get_double(poObjCoord);
 
                /* Read Y coordinate */
                poObjCoord = json_object_array_get_idx(poObj, 1);
                pt.y = json_object_get_double(poObjCoord);
 
                if (nSize > 2) /* should this be >= 3 ? */
                {
                        /* Read Z coordinate */
                        poObjCoord = json_object_array_get_idx(poObj, 2);
                        pt.z = json_object_get_double(poObjCoord);
                        *hasz = LW_TRUE;
                }
        }
        else
        {
                /* If it's not an array, just don't handle it */
                lwerror("The 'coordinates' in GeoJSON are not sufficiently nested");
                return LW_FAILURE;
        }
 
        return ptarray_append_point(pa, &pt, LW_TRUE);
}

References LW_FAILURE, LW_TRUE, lwerror(), ptarray_append_point(), POINT4D::x, POINT4D::y, and POINT4D::z.

Referenced by parse_geojson_linestring(), parse_geojson_multilinestring(), parse_geojson_multipoint(), parse_geojson_point(), and parse_geojson_poly_rings().

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