88 lines
3.3 KiB
C++
88 lines
3.3 KiB
C++
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// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2015 Google Inc. All rights reserved.
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// http://ceres-solver.org/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: sameeragarwal@google.com (Sameer Agarwal)
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#include "ceres/line_search_minimizer.h"
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#include "ceres/minimizer.h"
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#include "ceres/trust_region_minimizer.h"
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#include "ceres/types.h"
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#include "glog/logging.h"
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namespace ceres {
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namespace internal {
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Minimizer* Minimizer::Create(MinimizerType minimizer_type) {
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if (minimizer_type == TRUST_REGION) {
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return new TrustRegionMinimizer;
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}
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if (minimizer_type == LINE_SEARCH) {
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return new LineSearchMinimizer;
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}
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LOG(FATAL) << "Unknown minimizer_type: " << minimizer_type;
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return NULL;
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}
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Minimizer::~Minimizer() {}
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bool Minimizer::RunCallbacks(const Minimizer::Options& options,
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const IterationSummary& iteration_summary,
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Solver::Summary* summary) {
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const bool is_not_silent = !options.is_silent;
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CallbackReturnType status = SOLVER_CONTINUE;
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int i = 0;
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while (status == SOLVER_CONTINUE && i < options.callbacks.size()) {
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status = (*options.callbacks[i])(iteration_summary);
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++i;
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}
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switch (status) {
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case SOLVER_CONTINUE:
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return true;
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case SOLVER_TERMINATE_SUCCESSFULLY:
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summary->termination_type = USER_SUCCESS;
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summary->message =
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"User callback returned SOLVER_TERMINATE_SUCCESSFULLY.";
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VLOG_IF(1, is_not_silent) << "Terminating: " << summary->message;
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return false;
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case SOLVER_ABORT:
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summary->termination_type = USER_FAILURE;
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summary->message = "User callback returned SOLVER_ABORT.";
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VLOG_IF(1, is_not_silent) << "Terminating: " << summary->message;
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return false;
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default:
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LOG(FATAL) << "Unknown type of user callback status";
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}
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return false;
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}
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} // namespace internal
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} // namespace ceres
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