Canonical Spaceship by Aaron Titus email: web: This OSP app demonstrates the relationship between net force and motion using a spaceship with 4 thrusters that fire in the +x, +y, -x, and -y directions, respectively. To run the app, change directories to ./build and run canonicalspaceship.jar. If you get an error that indicates that a class cannot be found, then run the class file directly using the command java -classpath .:osp.jar org.highpoint.titus.apps.osp.canonicalspaceship.CanonicalSpaceShip The opensourcephysics classes are included in the jar file, osp.jar, that is in the ./build/classes folder. You may delete this file if it is already in your classpath. Alternatively, if you already have osp.jar, you may download the app-only version of Canonical Spaceship which is a much smaller file. This is an OSP application (www.opensourcephysics.org). It is governed by the same license as OSP which is the GNU General Public License. A copy of the GPL license is distributed with this source in org/highpoint/titus/resources/gpl.txt. Copyright (C) 2004 Aaron Titus This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Email Aaron Titus at titus@mailaps.org if you have any questions, comments, or feature requests. -------------- Version History Version 1.0 - 7/18/04 - Posted source code. Version 1.01 - 6/28/05 - Updated source to use the newer OSP library; included OSP source with CanonicalSpaceShip source and combined them into the same jar file.