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Diffstat (limited to 'xs/src/igl/sort_angles.cpp')
| -rw-r--r-- | xs/src/igl/sort_angles.cpp | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/xs/src/igl/sort_angles.cpp b/xs/src/igl/sort_angles.cpp deleted file mode 100644 index 486f621ea..000000000 --- a/xs/src/igl/sort_angles.cpp +++ /dev/null @@ -1,114 +0,0 @@ -// This file is part of libigl, a simple c++ geometry processing library. -// -// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com> -// -// This Source Code Form is subject to the terms of the Mozilla Public License -// v. 2.0. If a copy of the MPL was not distributed with this file, You can -// obtain one at http://mozilla.org/MPL/2.0/. -#include "sort_angles.h" -#include "LinSpaced.h" -#include <algorithm> - -template <typename DerivedM, typename DerivedR> -IGL_INLINE void igl::sort_angles( - const Eigen::PlainObjectBase<DerivedM>& M, - Eigen::PlainObjectBase<DerivedR>& R) { - const size_t num_rows = M.rows(); - const size_t num_cols = M.cols(); - assert(num_cols >= 2); - - R.resize(num_rows); - // Have to use << instead of = because Eigen's PlainObjectBase is annoying - R << igl::LinSpaced< - Eigen::Matrix<typename DerivedR::Scalar, Eigen::Dynamic, 1> > - (num_rows, 0, num_rows-1); - - // | - // (pi/2, pi) | (0, pi/2) - // | - // -------------+-------------- - // | - // (-pi, -pi/2) | (-pi/2, 0) - // | - auto comp = [&](size_t i, size_t j) { - auto yi = M(i, 0); - auto xi = M(i, 1); - auto yj = M(j, 0); - auto xj = M(j, 1); - - if (xi == xj && yi == yj) { - for (size_t idx=2; idx<num_cols; idx++) { - auto i_val = M(i, idx); - auto j_val = M(j, idx); - if (i_val != j_val) { - return i_val < j_val; - } - } - // If the entire rows are equal, use the row index. - return i < j; - } - - if (xi >= 0 && yi >= 0) { - if (xj >=0 && yj >= 0) { - if (xi != xj) { - return xi > xj; - } else { - return yi < yj; - } - } else if (xj < 0 && yj >= 0) { - return true; - } else if (xj < 0 && yj < 0) { - return false; - } else { - return false; - } - } else if (xi < 0 && yi >= 0) { - if (xj >= 0 && yj >= 0) { - return false; - } else if (xj < 0 && yj >= 0) { - if (xi != xj) { - return xi > xj; - } else { - return yi > yj; - } - } else if (xj < 0 && yj < 0) { - return false; - } else { - return false; - } - } else if (xi < 0 && yi < 0) { - if (xj >= 0 && yj >= 0) { - return true; - } else if (xj < 0 && yj >= 0) { - return true; - } else if (xj < 0 && yj < 0) { - if (xi != xj) { - return xi < xj; - } else { - return yi > yj; - } - } else { - return true; - } - } else { - if (xj >= 0 && yj >= 0) { - return true; - } else if (xj < 0 && yj >= 0) { - return true; - } else if (xj < 0 && yj < 0) { - return false; - } else { - if (xi != xj) { - return xi < xj; - } else { - return yi < yj; - } - } - } - }; - std::sort(R.data(), R.data() + num_rows, comp); -} - -#ifdef IGL_STATIC_LIBRARY -template void igl::sort_angles<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&); -#endif |