1 // Ceres Solver - A fast non-linear least squares minimizer 2 // Copyright 2010, 2011, 2012 Google Inc. All rights reserved. 3 // http://code.google.com/p/ceres-solver/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are met: 7 // 8 // * Redistributions of source code must retain the above copyright notice, 9 // this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above copyright notice, 11 // this list of conditions and the following disclaimer in the documentation 12 // and/or other materials provided with the distribution. 13 // * Neither the name of Google Inc. nor the names of its contributors may be 14 // used to endorse or promote products derived from this software without 15 // specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 // POSSIBILITY OF SUCH DAMAGE. 28 // 29 // Author: sameeragarwal (at) google.com (Sameer Agarwal) 30 31 #include "ceres/minimizer.h" 32 #include "ceres/types.h" 33 #include "glog/logging.h" 34 35 namespace ceres { 36 namespace internal { 37 38 Minimizer::~Minimizer() {} 39 40 bool Minimizer::RunCallbacks(const vector<IterationCallback*> callbacks, 41 const IterationSummary& iteration_summary, 42 Solver::Summary* summary) { 43 CallbackReturnType status = SOLVER_CONTINUE; 44 int i = 0; 45 while (status == SOLVER_CONTINUE && i < callbacks.size()) { 46 status = (*callbacks[i])(iteration_summary); 47 ++i; 48 } 49 switch (status) { 50 case SOLVER_CONTINUE: 51 return true; 52 case SOLVER_TERMINATE_SUCCESSFULLY: 53 summary->termination_type = USER_SUCCESS; 54 VLOG(1) << "Terminating: User callback returned USER_SUCCESS."; 55 return false; 56 case SOLVER_ABORT: 57 summary->termination_type = USER_ABORT; 58 VLOG(1) << "Terminating: User callback returned USER_ABORT."; 59 return false; 60 default: 61 LOG(FATAL) << "Unknown type of user callback status"; 62 } 63 return false; 64 } 65 66 } // namespace internal 67 } // namespace ceres 68
