2 * Jalview - A Sequence Alignment Editor and Viewer
\r
3 * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
\r
5 * This program is free software; you can redistribute it and/or
\r
6 * modify it under the terms of the GNU General Public License
\r
7 * as published by the Free Software Foundation; either version 2
\r
8 * of the License, or (at your option) any later version.
\r
10 * This program is distributed in the hope that it will be useful,
\r
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
13 * GNU General Public License for more details.
\r
15 * You should have received a copy of the GNU General Public License
\r
16 * along with this program; if not, write to the Free Software
\r
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
\r
24 public class Zsort {
\r
25 public void Zsort(Vector bonds) {
\r
26 sort(bonds, 0, bonds.size() - 1);
\r
29 public void sort(Vector bonds, int p, int r) {
\r
33 q = partition(bonds, p, r);
\r
35 sort(bonds, q + 1, r);
\r
39 private int partition(Vector bonds, int p, int r) {
\r
40 float x = ((Bond) bonds.elementAt(p)).start[2];
\r
47 } while ((j >= 0) && (((Bond) bonds.elementAt(j)).start[2] > x));
\r
51 } while ((i < bonds.size()) &&
\r
52 (((Bond) bonds.elementAt(i)).start[2] < x));
\r
55 tmp = (Bond) bonds.elementAt(i);
\r
56 bonds.setElementAt(bonds.elementAt(j), i);
\r
57 bonds.setElementAt(tmp, j);
\r