| // Ceres Solver - A fast non-linear least squares minimizer |
| // Copyright 2010, 2011, 2012 Google Inc. All rights reserved. |
| // http://code.google.com/p/ceres-solver/ |
| // |
| // 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: keir@google.com (Keir Mierle) |
| |
| #include "ceres/numeric_diff_cost_function.h" |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <string> |
| #include <vector> |
| #include "ceres/internal/macros.h" |
| #include "ceres/internal/scoped_ptr.h" |
| #include "ceres/numeric_diff_test_utils.h" |
| #include "ceres/test_util.h" |
| #include "ceres/types.h" |
| #include "glog/logging.h" |
| #include "gtest/gtest.h" |
| |
| namespace ceres { |
| namespace internal { |
| |
| TEST(NumericDiffCostFunction, EasyCaseFunctorCentralDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<EasyFunctor, |
| CENTRAL, |
| 3, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new EasyFunctor)); |
| EasyFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, CENTRAL); |
| } |
| |
| TEST(NumericDiffCostFunction, EasyCaseFunctorForwardDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<EasyFunctor, |
| FORWARD, |
| 3, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new EasyFunctor)); |
| EasyFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, FORWARD); |
| } |
| |
| TEST(NumericDiffCostFunction, EasyCaseCostFunctionCentralDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<EasyCostFunction, |
| CENTRAL, |
| 3, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new EasyCostFunction, TAKE_OWNERSHIP)); |
| EasyFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, CENTRAL); |
| } |
| |
| TEST(NumericDiffCostFunction, EasyCaseCostFunctionForwardDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<EasyCostFunction, |
| FORWARD, |
| 3, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new EasyCostFunction, TAKE_OWNERSHIP)); |
| EasyFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, FORWARD); |
| } |
| |
| TEST(NumericDiffCostFunction, TranscendentalCaseFunctorCentralDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<TranscendentalFunctor, |
| CENTRAL, |
| 2, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new TranscendentalFunctor)); |
| TranscendentalFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, CENTRAL); |
| } |
| |
| TEST(NumericDiffCostFunction, TranscendentalCaseFunctorForwardDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<TranscendentalFunctor, |
| FORWARD, |
| 2, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new TranscendentalFunctor)); |
| TranscendentalFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, FORWARD); |
| } |
| |
| TEST(NumericDiffCostFunction, TranscendentalCaseCostFunctionCentralDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<TranscendentalCostFunction, |
| CENTRAL, |
| 2, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new TranscendentalCostFunction, TAKE_OWNERSHIP)); |
| TranscendentalFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, CENTRAL); |
| } |
| |
| TEST(NumericDiffCostFunction, TranscendentalCaseCostFunctionForwardDifferences) { |
| internal::scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<TranscendentalCostFunction, |
| FORWARD, |
| 2, /* number of residuals */ |
| 5, /* size of x1 */ |
| 5 /* size of x2 */>( |
| new TranscendentalCostFunction, TAKE_OWNERSHIP)); |
| TranscendentalFunctor functor; |
| functor.ExpectCostFunctionEvaluationIsNearlyCorrect(*cost_function, FORWARD); |
| } |
| |
| template<int num_rows, int num_cols> |
| class SizeTestingCostFunction : public SizedCostFunction<num_rows, num_cols> { |
| public: |
| virtual bool Evaluate(double const* const* parameters, |
| double* residuals, |
| double** jacobians) const { |
| return true; |
| } |
| }; |
| |
| // As described in |
| // http://forum.kde.org/viewtopic.php?f=74&t=98536#p210774 |
| // Eigen3 has restrictions on the Row/Column major storage of vectors, |
| // depending on their dimensions. This test ensures that the correct |
| // templates are instantiated for various shapes of the Jacobian |
| // matrix. |
| TEST(NumericDiffCostFunction, EigenRowMajorColMajorTest) { |
| scoped_ptr<CostFunction> cost_function; |
| cost_function.reset( |
| new NumericDiffCostFunction<SizeTestingCostFunction<1,1>, CENTRAL, 1, 1>( |
| new SizeTestingCostFunction<1,1>, ceres::TAKE_OWNERSHIP)); |
| |
| cost_function.reset( |
| new NumericDiffCostFunction<SizeTestingCostFunction<2,1>, CENTRAL, 2, 1>( |
| new SizeTestingCostFunction<2,1>, ceres::TAKE_OWNERSHIP)); |
| |
| cost_function.reset( |
| new NumericDiffCostFunction<SizeTestingCostFunction<1,2>, CENTRAL, 1, 2>( |
| new SizeTestingCostFunction<1,2>, ceres::TAKE_OWNERSHIP)); |
| |
| cost_function.reset( |
| new NumericDiffCostFunction<SizeTestingCostFunction<2,2>, CENTRAL, 2, 2>( |
| new SizeTestingCostFunction<2,2>, ceres::TAKE_OWNERSHIP)); |
| } |
| |
| } // namespace internal |
| } // namespace ceres |
