57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_COPYLEFT_CGAL_SUBDIVIDE_SEGMENTS_H
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#define IGL_COPYLEFT_CGAL_SUBDIVIDE_SEGMENTS_H
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#include "../../igl_inline.h"
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#include <Eigen/Core>
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#include <CGAL/Segment_2.h>
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#include <CGAL/Point_2.h>
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#include <vector>
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namespace igl
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{
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namespace copyleft
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{
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namespace cgal
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{
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// Insert steiner points to subdivide a given set of line segments
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//
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// Inputs:
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// V #V by 2 list of vertex positions
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// E #E by 2 list of segment indices into V
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// steiner #E list of lists of unsorted steiner points (including
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// endpoints) along the #E original segments
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// Outputs:
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// VI #VI by 2 list of output vertex positions, copies of V are always
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// the first #V vertices
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// EI #EI by 2 list of segment indices into V, #EI ≥ #E
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// J #EI list of indices into E revealing "parent segments"
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// IM #VI list of indices into VV of unique vertices.
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template <
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typename DerivedV,
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typename DerivedE,
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typename Kernel,
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typename DerivedVI,
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typename DerivedEI,
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typename DerivedJ,
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typename DerivedIM>
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IGL_INLINE void subdivide_segments(
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedE> & E,
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const std::vector<std::vector<CGAL::Point_2<Kernel> > > & steiner,
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Eigen::PlainObjectBase<DerivedVI> & VI,
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Eigen::PlainObjectBase<DerivedEI> & EI,
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Eigen::PlainObjectBase<DerivedJ> & J,
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Eigen::PlainObjectBase<DerivedIM> & IM);
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}
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "subdivide_segments.cpp"
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#endif
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#endif
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