| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586 | // Ceres Solver - A fast non-linear least squares minimizer// Copyright 2015 Google Inc. All rights reserved.// http://ceres-solver.org///// Redistribution and use in source and binary forms, with or without// modification, are permitted provided that the following conditions are met://// * Redistributions of source code must retain the above copyright notice,//   this list of conditions and the following disclaimer.// * Redistributions in binary form must reproduce the above copyright notice,//   this list of conditions and the following disclaimer in the documentation//   and/or other materials provided with the distribution.// * Neither the name of Google Inc. nor the names of its contributors may be//   used to endorse or promote products derived from this software without//   specific prior written permission.//// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE// POSSIBILITY OF SUCH DAMAGE.//// Author: sameeragarwal@google.com (Sameer Agarwal)#ifndef CERES_INTERNAL_CALLBACKS_H_#define CERES_INTERNAL_CALLBACKS_H_#include <string>#include "ceres/iteration_callback.h"#include "ceres/internal/port.h"namespace ceres {namespace internal {class Program;// Callback for updating the externally visible state of parameter// blocks.class StateUpdatingCallback : public IterationCallback { public:  StateUpdatingCallback(Program* program, double* parameters);  virtual ~StateUpdatingCallback();  CallbackReturnType operator()(const IterationSummary& summary) final; private:  Program* program_;  double* parameters_;};// Callback for updating the externally visible state of the// parameters vector for GradientProblemSolver.class GradientProblemSolverStateUpdatingCallback : public IterationCallback { public:  GradientProblemSolverStateUpdatingCallback(int num_parameters,                                             const double* internal_parameters,                                             double* user_parameters);  virtual ~GradientProblemSolverStateUpdatingCallback();  CallbackReturnType operator()(const IterationSummary& summary) final; private:  int num_parameters_;  const double* internal_parameters_;  double* user_parameters_;};// Callback for logging the state of the minimizer to STDERR or// STDOUT depending on the user's preferences and logging level.class LoggingCallback : public IterationCallback { public:  LoggingCallback(MinimizerType minimizer_type, bool log_to_stdout);  virtual ~LoggingCallback();  CallbackReturnType operator()(const IterationSummary& summary) final; private:  const MinimizerType minimizer_type;  const bool log_to_stdout_;};}  // namespace internal}  // namespace ceres#endif  // CERES_INTERNAL_CALLBACKS_H_
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