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      1 // Ceres Solver - A fast non-linear least squares minimizer
      2 // Copyright 2012, 2013 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 //
     30 // Author: sameeragarwal (at) google.com (Sameer Agarwal)
     31 //         keir (at) google.com (Keir Mierle)
     32 
     33 #include "ceres/trust_region_strategy.h"
     34 #include "ceres/dogleg_strategy.h"
     35 #include "ceres/levenberg_marquardt_strategy.h"
     36 
     37 namespace ceres {
     38 namespace internal {
     39 
     40 TrustRegionStrategy::~TrustRegionStrategy() {}
     41 
     42 TrustRegionStrategy* TrustRegionStrategy::Create(const Options& options) {
     43   switch (options.trust_region_strategy_type) {
     44     case LEVENBERG_MARQUARDT:
     45       return new LevenbergMarquardtStrategy(options);
     46     case DOGLEG:
     47       return new DoglegStrategy(options);
     48     default:
     49       LOG(FATAL) << "Unknown trust region strategy: "
     50                  << options.trust_region_strategy_type;
     51   }
     52 
     53   LOG(FATAL) << "Unknown trust region strategy: "
     54              << options.trust_region_strategy_type;
     55   return NULL;
     56 }
     57 
     58 }  // namespace internal
     59 }  // namespace ceres
     60