1 // Ceres Solver - A fast non-linear least squares minimizer 2 // Copyright 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 // Author: sameeragarwal (at) google.com (Sameer Agarwal) 30 31 #include "ceres/preconditioner.h" 32 #include "glog/logging.h" 33 34 namespace ceres { 35 namespace internal { 36 37 Preconditioner::~Preconditioner() { 38 } 39 40 SparseMatrixPreconditionerWrapper::SparseMatrixPreconditionerWrapper( 41 const SparseMatrix* matrix) 42 : matrix_(CHECK_NOTNULL(matrix)) { 43 } 44 45 SparseMatrixPreconditionerWrapper::~SparseMatrixPreconditionerWrapper() { 46 } 47 48 bool SparseMatrixPreconditionerWrapper::UpdateImpl(const SparseMatrix& A, 49 const double* D) { 50 return true; 51 } 52 53 void SparseMatrixPreconditionerWrapper::RightMultiply(const double* x, 54 double* y) const { 55 matrix_->RightMultiply(x, y); 56 } 57 58 int SparseMatrixPreconditionerWrapper::num_rows() const { 59 return matrix_->num_rows(); 60 } 61 62 } // namespace internal 63 } // namespace ceres 64
