00001 /********************************************************************* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2010, LABUST, UNIZG-FER 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * * Redistributions in binary form must reproduce the above 00014 * copyright notice, this list of conditions and the following 00015 * disclaimer in the documentation and/or other materials provided 00016 * with the distribution. 00017 * * Neither the name of the LABUST nor the names of its 00018 * contributors may be used to endorse or promote products derived 00019 * from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00024 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00025 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00026 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00027 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00028 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00031 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 * 00034 * Author: Dula Nad 00035 * Created: 06.03.2013. 00036 *********************************************************************/ 00037 #include <labust/allocation/ThrustAllocation.hpp> 00038 #include <labust/allocation/ThrusterModels.hpp> 00039 #include <labust/tools/MatrixLoader.hpp> 00040 00041 #include <cmath> 00042 00043 using namespace labust::allocation; 00044 00045 ThrustAllocation::ThrustAllocation(): 00046 dofs(2), 00047 B(2,2), 00048 W(Eigen::Matrix2d::Identity()), 00049 tmax(2), 00050 tmin(2), 00051 pwmscaler(255) 00052 { 00053 dofs<<0,5; 00054 B<<1,1,1,-1; 00055 Binv = B.inverse(); 00056 tmax<<1,1; 00057 tmin = -tmax; 00058 }; 00059 00060 void ThrustAllocation::configure(ros::NodeHandle& nh) 00061 { 00062 //Populate allocation 00063 labust::tools::getMatrixParam(nh,"allocation_matrix",B); 00064 Binv = B.transpose()*(B*B.transpose()).inverse(); 00065 labust::tools::getMatrixParam(nh,"allocation_dofs",dofs); 00066 00067 assert((B.cols() == tmax.size()) && 00068 "Allocation matrix must have number of columns equal to number of thrusters."); 00069 assert((B.rows() == dofs.size()) && 00070 "Allocation matrix must have the same number of rows as controllable DOFs."); 00071 00072 if (nh.hasParam("thrust_max")) 00073 { 00074 labust::tools::getMatrixParam(nh,"thrust_max",tmax); 00075 } 00076 else 00077 { 00078 tmax = Eigen::VectorXd::Ones(B.cols()); 00079 } 00080 00081 if (nh.hasParam("thrust_min")) 00082 { 00083 labust::tools::getMatrixParam(nh,"thrust_min",tmin); 00084 } 00085 else 00086 { 00087 tmin = -tmax; 00088 } 00089 00090 nh.param("pwmscaler",pwmscaler,pwmscaler); 00091 }