57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
|
// This file is part of libigl, a simple c++ geometry processing library.
|
||
|
//
|
||
|
// Copyright (C) 2016 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_COPYLEFT_CGAL_SUBDIVIDE_SEGMENTS_H
|
||
|
#define IGL_COPYLEFT_CGAL_SUBDIVIDE_SEGMENTS_H
|
||
|
#include "../../igl_inline.h"
|
||
|
#include <Eigen/Core>
|
||
|
#include <CGAL/Segment_2.h>
|
||
|
#include <CGAL/Point_2.h>
|
||
|
#include <vector>
|
||
|
namespace igl
|
||
|
{
|
||
|
namespace copyleft
|
||
|
{
|
||
|
namespace cgal
|
||
|
{
|
||
|
// Insert steiner points to subdivide a given set of line segments
|
||
|
//
|
||
|
// Inputs:
|
||
|
// V #V by 2 list of vertex positions
|
||
|
// E #E by 2 list of segment indices into V
|
||
|
// steiner #E list of lists of unsorted steiner points (including
|
||
|
// endpoints) along the #E original segments
|
||
|
// Outputs:
|
||
|
// VI #VI by 2 list of output vertex positions, copies of V are always
|
||
|
// the first #V vertices
|
||
|
// EI #EI by 2 list of segment indices into V, #EI ≥ #E
|
||
|
// J #EI list of indices into E revealing "parent segments"
|
||
|
// IM #VI list of indices into VV of unique vertices.
|
||
|
template <
|
||
|
typename DerivedV,
|
||
|
typename DerivedE,
|
||
|
typename Kernel,
|
||
|
typename DerivedVI,
|
||
|
typename DerivedEI,
|
||
|
typename DerivedJ,
|
||
|
typename DerivedIM>
|
||
|
IGL_INLINE void subdivide_segments(
|
||
|
const Eigen::PlainObjectBase<DerivedV> & V,
|
||
|
const Eigen::PlainObjectBase<DerivedE> & E,
|
||
|
const std::vector<std::vector<CGAL::Point_2<Kernel> > > & steiner,
|
||
|
Eigen::PlainObjectBase<DerivedVI> & VI,
|
||
|
Eigen::PlainObjectBase<DerivedEI> & EI,
|
||
|
Eigen::PlainObjectBase<DerivedJ> & J,
|
||
|
Eigen::PlainObjectBase<DerivedIM> & IM);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
#ifndef IGL_STATIC_LIBRARY
|
||
|
# include "subdivide_segments.cpp"
|
||
|
#endif
|
||
|
#endif
|