5 * Copyright 2018 Andy Street <andy@street.me.uk>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
28 * Common functions for geographic elements.
30 * @author Andy Street <andy@street.me.uk>
36 * Fetch a bounding box that covers the feature.
38 * @return Bounds|null A bounding box covering the extent of the feature or
39 * null if not applicable.
41 public function getBounds();
44 * Fetch the length of a geographic element.
46 * @return float The length in meters.
48 public function getLength();