libigl_Martin/include/igl/embree/reorient_facets_raycast.h

// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2013 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_REORIENT_FACETS_RAYCAST_H
#define IGL_REORIENT_FACETS_RAYCAST_H
#include "../igl_inline.h"
#include <Eigen/Core>
namespace igl
{
  // Orient each component (identified by C) of a mesh (V,F) using ambient
  // occlusion such that the front side is less occluded than back side
  //
  // Inputs:
  //   V  #V by 3 list of vertex positions
  //   F  #F by 3 list of triangle indices
  //   rays_total  Total number of rays that will be shot
  //   rays_minimum  Minimum number of rays that each patch should receive
  //   facet_wise  Decision made for each face independently, no use of patches
  //     (i.e., each face is treated as a patch)
  //   use_parity  Use parity mode
  //   is_verbose  Verbose output to cout
  // Outputs:
  //   I  #F list of whether face has been flipped
  //   C  #F list of patch ID (outpute of bfs_orient
  //     > manifold patches
  template <
    typename DerivedV, 
    typename DerivedF, 
    typename DerivedI,
    typename DerivedC>
  IGL_INLINE void reorient_facets_raycast(
    const Eigen::PlainObjectBase<DerivedV> & V,
    const Eigen::PlainObjectBase<DerivedF> & F,
    int rays_total,
    int rays_minimum,
    bool facet_wise,
    bool use_parity,
    bool is_verbose,
    Eigen::PlainObjectBase<DerivedI> & I,
    Eigen::PlainObjectBase<DerivedC> & C);
  // Outputs:
  //   FF  #F by 3 list of reoriented faces
  // Defaults:
  //   rays_total = F.rows()*100;
  //   rays_minimum = 10;
  //   facet_wise = false;
  //   use_parity = false;
  //   is_verbose = false;
  template <
    typename DerivedV, 
    typename DerivedF, 
    typename DerivedFF,
    typename DerivedI>
  IGL_INLINE void reorient_facets_raycast(
    const Eigen::PlainObjectBase<DerivedV> & V,
    const Eigen::PlainObjectBase<DerivedF> & F,
    Eigen::PlainObjectBase<DerivedFF> & FF,
    Eigen::PlainObjectBase<DerivedI> & I);
};

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

#endif