diff options
Diffstat (limited to 'extern/libmv/third_party/ceres/internal/ceres/detect_structure.cc')
| -rw-r--r-- | extern/libmv/third_party/ceres/internal/ceres/detect_structure.cc | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/extern/libmv/third_party/ceres/internal/ceres/detect_structure.cc b/extern/libmv/third_party/ceres/internal/ceres/detect_structure.cc deleted file mode 100644 index ea5bf2e9690..00000000000 --- a/extern/libmv/third_party/ceres/internal/ceres/detect_structure.cc +++ /dev/null @@ -1,114 +0,0 @@ -// 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: sameeragarwal@google.com (Sameer Agarwal) - -#include "ceres/detect_structure.h" -#include "ceres/internal/eigen.h" -#include "glog/logging.h" - -namespace ceres { -namespace internal { - -void DetectStructure(const CompressedRowBlockStructure& bs, - const int num_eliminate_blocks, - int* row_block_size, - int* e_block_size, - int* f_block_size) { - const int num_row_blocks = bs.rows.size(); - *row_block_size = 0; - *e_block_size = 0; - *f_block_size = 0; - - // Iterate over row blocks of the matrix, checking if row_block, - // e_block or f_block sizes remain constant. - for (int r = 0; r < num_row_blocks; ++r) { - const CompressedRow& row = bs.rows[r]; - // We do not care about the sizes of the blocks in rows which do - // not contain e_blocks. - if (row.cells.front().block_id >= num_eliminate_blocks) { - break; - } - const int e_block_id = row.cells.front().block_id; - - if (*row_block_size == 0) { - *row_block_size = row.block.size; - } else if (*row_block_size != Eigen::Dynamic && - *row_block_size != row.block.size) { - VLOG(2) << "Dynamic row block size because the block size changed from " - << *row_block_size << " to " - << row.block.size; - *row_block_size = Eigen::Dynamic; - } - - - if (*e_block_size == 0) { - *e_block_size = bs.cols[e_block_id].size; - } else if (*e_block_size != Eigen::Dynamic && - *e_block_size != bs.cols[e_block_id].size) { - VLOG(2) << "Dynamic e block size because the block size changed from " - << *e_block_size << " to " - << bs.cols[e_block_id].size; - *e_block_size = Eigen::Dynamic; - } - - if (*f_block_size == 0) { - if (row.cells.size() > 1) { - const int f_block_id = row.cells[1].block_id; - *f_block_size = bs.cols[f_block_id].size; - } - } else if (*f_block_size != Eigen::Dynamic) { - for (int c = 1; c < row.cells.size(); ++c) { - if (*f_block_size != bs.cols[row.cells[c].block_id].size) { - VLOG(2) << "Dynamic f block size because the block size " - << "changed from " << *f_block_size << " to " - << bs.cols[row.cells[c].block_id].size; - *f_block_size = Eigen::Dynamic; - break; - } - } - } - - const bool is_everything_dynamic = (*row_block_size == Eigen::Dynamic && - *e_block_size == Eigen::Dynamic && - *f_block_size == Eigen::Dynamic); - if (is_everything_dynamic) { - break; - } - } - - CHECK_NE(*row_block_size, 0) << "No rows found"; - CHECK_NE(*e_block_size, 0) << "No e type blocks found"; - VLOG(1) << "Schur complement static structure <" - << *row_block_size << "," - << *e_block_size << "," - << *f_block_size << ">."; -} - -} // namespace internal -} // namespace ceres |