libigl/include/igl/all_pairs_distances.h

// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2013 Alec Jacobson <[email protected]>
// 
// 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/.
#ifndef IGL_ALL_PAIRS_DISTANCES_H
#define IGL_ALL_PAIRS_DISTANCES_H
#include "igl_inline.h"

namespace igl
{
  /// Compute distances between each point i in V and point j in U
  /// 
  ///     D = all_pairs_distances(V,U)
  /// 
  /// @tparam matrix class like MatrixXd
  /// @param[in] V  #V by dim list of points
  /// @param[in] U  #U by dim list of points
  /// @param[in] squared  whether to return squared distances
  /// @param[out] D  #V by #U matrix of distances, where D(i,j) gives the distance or
  ///     squareed distance between V(i,:) and U(j,:)
  template <typename Mat>
  IGL_INLINE void all_pairs_distances(
    const Mat & V,
    const Mat & U,
    const bool squared, 
    Mat & D);
}

#ifndef IGL_STATIC_LIBRARY
#  include "all_pairs_distances.cpp"
#endif

#endif