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00001 // Copyright (C) 2009 Ruben Smits <ruben dot smits at mech dot kuleuven dot be> 00002 00003 // Version: 1.0 00004 // Author: Ruben Smits <ruben dot smits at mech dot kuleuven dot be> 00005 // Maintainer: Ruben Smits <ruben dot smits at mech dot kuleuven dot be> 00006 // URL: http://www.orocos.org/kdl 00007 00008 // This library is free software; you can redistribute it and/or 00009 // modify it under the terms of the GNU Lesser General Public 00010 // License as published by the Free Software Foundation; either 00011 // version 2.1 of the License, or (at your option) any later version. 00012 00013 // This library is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 // Lesser General Public License for more details. 00017 00018 // You should have received a copy of the GNU Lesser General Public 00019 // License along with this library; if not, write to the Free Software 00020 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00021 00022 #ifndef KDL_ROTATIONALINERTIA_HPP 00023 #define KDL_ROTATIONALINERTIA_HPP 00024 00025 #include "frames.hpp" 00026 00027 //------- class for only the Rotational Inertia -------- 00028 00029 namespace KDL 00030 { 00031 //Forward declaration 00032 class RigidBodyInertia; 00033 00034 class RotationalInertia{ 00035 public: 00036 00037 explicit RotationalInertia(double Ixx=0,double Iyy=0,double Izz=0,double Ixy=0,double Ixz=0,double Iyz=0); 00038 00039 static inline RotationalInertia Zero(){ 00040 return RotationalInertia(0,0,0,0,0,0); 00041 }; 00042 00043 friend RotationalInertia operator*(double a, const RotationalInertia& I); 00044 friend RotationalInertia operator+(const RotationalInertia& Ia, const RotationalInertia& Ib); 00045 00049 KDL::Vector operator*(const KDL::Vector& omega) const; 00050 00051 ~RotationalInertia(); 00052 00053 friend class RigidBodyInertia; 00055 friend RigidBodyInertia operator*(double a,const RigidBodyInertia& I); 00057 friend RigidBodyInertia operator+(const RigidBodyInertia& Ia,const RigidBodyInertia& Ib); 00059 friend Wrench operator*(const RigidBodyInertia& I,const Twist& t); 00061 friend RigidBodyInertia operator*(const Frame& T,const RigidBodyInertia& I); 00063 friend RigidBodyInertia operator*(const Rotation& R,const RigidBodyInertia& I); 00064 00065 double data[9]; 00066 }; 00067 00068 } 00069 00070 #endif 00071