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58 lines
2.1 KiB
58 lines
2.1 KiB
// 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
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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_INSERT_INTO_CDT_H
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#define IGL_COPYLEFT_CGAL_INSERT_INTO_CDT_H
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#include "../../igl_inline.h"
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#include <CGAL/double.h> // Workaround https://github.com/CGAL/cgal/issues/2182 with CGAL 4.10-1
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#include <CGAL/Plane_3.h>
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#include <CGAL/Constrained_Delaunay_triangulation_2.h>
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#include <CGAL/Constrained_triangulation_plus_2.h>
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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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/// Given a current 2D constrained Delaunay triangulation (cdt), insert a
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/// 3D "object" (e.g., resulting from intersecting two triangles) into the
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/// cdt, by projecting it via the given plane (P) and adding appropriate
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/// constraints.
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///
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/// @param[in] obj CGAL::Object representing a vertex, segment, or (convex)
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/// polygon. All vertices should lie on the plane P. If not, then this
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/// adds the _projection_ of this object to the cdt and that might not
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/// be what you wanted to do.
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/// @param[in] P plane obj lies on and upon which the cdt is being performed
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/// @param[in] cdt current CDT, see output
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/// @param[out] cdt CDT updated to contain constraints for the given object
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///
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template <typename Kernel>
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IGL_INLINE void insert_into_cdt(
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const CGAL::Object & obj,
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const CGAL::Plane_3<Kernel> & P,
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CGAL::Constrained_triangulation_plus_2<
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CGAL::Constrained_Delaunay_triangulation_2<
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Kernel,
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CGAL::Triangulation_data_structure_2<
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CGAL::Triangulation_vertex_base_2<Kernel>,
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CGAL::Constrained_triangulation_face_base_2< Kernel>
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>,
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CGAL::Exact_intersections_tag
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>
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>
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& cdt);
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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 "insert_into_cdt.cpp"
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#endif
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#endif
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