1 // Ceres Solver - A fast non-linear least squares minimizer
2 // Copyright 2015 Google Inc. All rights reserved.
3 // http://ceres-solver.org/
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are met:
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.
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
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26 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 // POSSIBILITY OF SUCH DAMAGE.
29 // Author: sameeragarwal@google.com (Sameer Agarwal)
31 #include "ceres/line_search_minimizer.h"
32 #include "ceres/minimizer.h"
33 #include "ceres/trust_region_minimizer.h"
34 #include "ceres/types.h"
35 #include "glog/logging.h"
40 Minimizer* Minimizer::Create(MinimizerType minimizer_type) {
41 if (minimizer_type == TRUST_REGION) {
42 return new TrustRegionMinimizer;
45 if (minimizer_type == LINE_SEARCH) {
46 return new LineSearchMinimizer;
49 LOG(FATAL) << "Unknown minimizer_type: " << minimizer_type;
54 Minimizer::~Minimizer() {}
56 bool Minimizer::RunCallbacks(const Minimizer::Options& options,
57 const IterationSummary& iteration_summary,
58 Solver::Summary* summary) {
59 const bool is_not_silent = !options.is_silent;
60 CallbackReturnType status = SOLVER_CONTINUE;
62 while (status == SOLVER_CONTINUE && i < options.callbacks.size()) {
63 status = (*options.callbacks[i])(iteration_summary);
69 case SOLVER_TERMINATE_SUCCESSFULLY:
70 summary->termination_type = USER_SUCCESS;
72 "User callback returned SOLVER_TERMINATE_SUCCESSFULLY.";
73 VLOG_IF(1, is_not_silent) << "Terminating: " << summary->message;
76 summary->termination_type = USER_FAILURE;
77 summary->message = "User callback returned SOLVER_ABORT.";
78 VLOG_IF(1, is_not_silent) << "Terminating: " << summary->message;
81 LOG(FATAL) << "Unknown type of user callback status";
86 } // namespace internal