00001 // $Id: NOX_LineSearch_Utils_Slope.H,v 1.7 2007/06/21 16:22:46 rhoope Exp $ 00002 // $Source: /space/CVS/Trilinos/packages/nox/src/NOX_LineSearch_Utils_Slope.H,v $ 00003 00004 //@HEADER 00005 // ************************************************************************ 00006 // 00007 // NOX: An Object-Oriented Nonlinear Solver Package 00008 // Copyright (2002) Sandia Corporation 00009 // 00010 // LOCA: Library of Continuation Algorithms Package 00011 // Copyright (2005) Sandia Corporation 00012 // 00013 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00014 // license for use of this work by or on behalf of the U.S. Government. 00015 // 00016 // This library is free software; you can redistribute it and/or modify 00017 // it under the terms of the GNU Lesser General Public License as 00018 // published by the Free Software Foundation; either version 2.1 of the 00019 // License, or (at your option) any later version. 00020 // 00021 // This library is distributed in the hope that it will be useful, but 00022 // WITHOUT ANY WARRANTY; without even the implied warranty of 00023 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00024 // Lesser General Public License for more details. 00025 // 00026 // You should have received a copy of the GNU Lesser General Public 00027 // License along with this library; if not, write to the Free Software 00028 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00029 // USA 00030 // 00031 // Questions? Contact Roger Pawlowski (rppawlo@sandia.gov) or 00032 // Eric Phipps (etphipp@sandia.gov), Sandia National Laboratories. 00033 // ************************************************************************ 00034 // CVS Information 00035 // $Source: /space/CVS/Trilinos/packages/nox/src/NOX_LineSearch_Utils_Slope.H,v $ 00036 // $Author: rhoope $ 00037 // $Date: 2007/06/21 16:22:46 $ 00038 // $Revision: 1.7 $ 00039 // ************************************************************************ 00040 //@HEADER 00041 00042 #ifndef NOX_LINESEARCH_UTILS_SLOPE_H 00043 #define NOX_LINESEARCH_UTILS_SLOPE_H 00044 00045 #include "NOX_Common.H" 00046 #include "NOX_Utils.H" 00047 #include "Teuchos_RCP.hpp" 00048 00049 // Forward declaration 00050 namespace NOX { 00051 class GlobalData; 00052 namespace Abstract { 00053 class Vector; 00054 class Group; 00055 } 00056 } 00057 00058 namespace NOX { 00059 00060 namespace LineSearch { 00061 00062 namespace Utils { 00063 00065 00069 class Slope { 00070 00071 public: 00072 00074 Slope(const Teuchos::RCP<NOX::GlobalData>& gd); 00075 00077 virtual ~Slope(); 00078 00080 void reset(const Teuchos::RCP<NOX::GlobalData>& gd); 00081 00083 00092 double computeSlope(const NOX::Abstract::Vector& dir, 00093 const NOX::Abstract::Group& grp); 00094 00096 00122 double computeSlopeWithOutJac(const NOX::Abstract::Vector& dir, 00123 const NOX::Abstract::Group& grp); 00124 00125 private: 00127 Slope() {}; 00128 00129 private: 00130 00132 NOX::Utils utils; 00133 00135 Teuchos::RCP<NOX::Abstract::Vector> vecPtr; 00136 00138 Teuchos::RCP<NOX::Abstract::Group> grpPtr; 00139 00140 }; 00141 } // namespace Utils 00142 } // namespace LineSearch 00143 } // namespace NOX 00144 00145 #endif