| // 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) |
| |
| #include "ceres/function_sample.h" |
| |
| #include "ceres/stringprintf.h" |
| |
| namespace ceres { |
| namespace internal { |
| |
| FunctionSample::FunctionSample() |
| : x(0.0), |
| vector_x_is_valid(false), |
| value(0.0), |
| value_is_valid(false), |
| vector_gradient_is_valid(false), |
| gradient(0.0), |
| gradient_is_valid(false) {} |
| |
| FunctionSample::FunctionSample(const double x, const double value) |
| : x(x), |
| vector_x_is_valid(false), |
| value(value), |
| value_is_valid(true), |
| vector_gradient_is_valid(false), |
| gradient(0.0), |
| gradient_is_valid(false) {} |
| |
| FunctionSample::FunctionSample(const double x, |
| const double value, |
| const double gradient) |
| : x(x), |
| vector_x_is_valid(false), |
| value(value), |
| value_is_valid(true), |
| vector_gradient_is_valid(false), |
| gradient(gradient), |
| gradient_is_valid(true) {} |
| |
| std::string FunctionSample::ToDebugString() const { |
| return StringPrintf( |
| "[x: %.8e, value: %.8e, gradient: %.8e, " |
| "value_is_valid: %d, gradient_is_valid: %d]", |
| x, |
| value, |
| gradient, |
| value_is_valid, |
| gradient_is_valid); |
| } |
| |
| } // namespace internal |
| } // namespace ceres |