libigl_Martin/include/igl/cgal/peel_outer_hull_layers.h

// 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/.
#ifndef IGL_CGAL_PEEL_OUTER_HULL_LAYERS_H
#define IGL_CGAL_PEEL_OUTER_HULL_LAYERS_H
#include "../igl_inline.h"
#include <Eigen/Core>
namespace igl
{
  namespace cgal
  {
    // Computes necessary generic information for boolean operations by
    // successively "peeling" off the "outer hull" of a mesh (V,F) resulting from
    // "resolving" all (self-)intersections.
    //
    // Inputs:
    //   V  #V by 3 list of vertex positions
    //   F  #F by 3 list of triangle indices into V
    // Outputs:
    //   I  #F list of which peel Iation a facet belongs 
    //   flip  #F list of whether a facet's orientation was flipped when facet
    //     "peeled" into its associated outer hull layer.
    // Returns number of peels
    template <
      typename DerivedV,
      typename DerivedF,
      typename DerivedI,
      typename Derivedflip>
    IGL_INLINE size_t peel_outer_hull_layers(
      const Eigen::PlainObjectBase<DerivedV > & V,
      const Eigen::PlainObjectBase<DerivedF > & F,
      Eigen::PlainObjectBase<DerivedI > & I,
      Eigen::PlainObjectBase<Derivedflip > & flip);
  }
}

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