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 #ifndef THRUSTERMODELS_HPP_ 00035 #define THRUSTERMODELS_HPP_ 00036 00037 #include <cmath> 00038 00039 namespace labust 00040 { 00041 namespace vehicles 00042 { 00046 struct AffineThruster 00047 { 00051 inline static int getRevs(double thrust, double Tnn = 1, double _Tnn = 1) 00052 { 00053 return (thrust >= 0) ? std::ceil(std::sqrt(thrust/Tnn)) : -std::ceil(std::sqrt(-thrust/_Tnn)); 00054 } 00055 00056 inline static double getRevsD(double thrust, double Tnn = 1, double _Tnn = 1) 00057 { 00058 return (thrust >= 0) ? std::sqrt(thrust/Tnn) : -std::sqrt(-thrust/_Tnn); 00059 } 00060 }; 00061 } 00062 } 00063 00064 /* THRUSTERMODELS_HPP_*/ 00065 #endif