You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
97 lines
3.9 KiB
97 lines
3.9 KiB
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2014 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_REMESH_SELF_INTERSECTIONS_H
|
|
#define IGL_COPYLEFT_CGAL_REMESH_SELF_INTERSECTIONS_H
|
|
#include "../../igl_inline.h"
|
|
#include "RemeshSelfIntersectionsParam.h"
|
|
|
|
#include <Eigen/Dense>
|
|
|
|
namespace igl
|
|
{
|
|
namespace copyleft
|
|
{
|
|
namespace cgal
|
|
{
|
|
/// Given a triangle mesh (V,F) compute a new mesh (VV,FF) which is the same
|
|
/// as (V,F) except that any self-intersecting triangles in (V,F) have been
|
|
/// subdivided (new vertices and face created) so that the self-intersection
|
|
/// contour lies exactly on edges in (VV,FF). New vertices will appear in
|
|
/// original faces or on original edges. New vertices on edges are "merged"
|
|
/// only across original faces sharing that edge. This means that if the input
|
|
/// triangle mesh is a closed manifold the output will be too.
|
|
///
|
|
/// @param[in] V #V by 3 list of vertex positions
|
|
/// @param[in] F #F by 3 list of triangle indices into V
|
|
/// @param[in] params struct of optional parameters
|
|
/// @param[out] VV #VV by 3 list of vertex positions
|
|
/// @param[out] FF #FF by 3 list of triangle indices into VV
|
|
/// @param[out] IF #intersecting face pairs by 2 list of intersecting
|
|
/// face pairs, indexing F
|
|
/// @param[out] J #FF list of indices into F denoting birth triangle
|
|
/// @param[out] IM #VV list of indices into VV of unique vertices.
|
|
///
|
|
/// \bug If an existing edge in (V,F) lies exactly on another face then
|
|
/// any resulting additional vertices along that edge may not get properly
|
|
/// connected so that the output mesh has the same global topology. This
|
|
/// is because …
|
|
///
|
|
/// #### Example.
|
|
/// // resolve intersections
|
|
/// igl::copyleft::cgal::remesh_self_intersections(V,F,params,VV,FF,IF,J,IM);
|
|
/// // _apply_ duplicate vertex mapping IM to FF
|
|
/// for_each(FF.data(),FF.data()+FF.size(),[&IM](int & a){a=IM(a);});
|
|
/// // remove any vertices now unreferenced after duplicate mapping.
|
|
/// igl::remove_unreferenced(VV,FF,SV,SF,UIM);
|
|
/// // Now (SV,SF) is ready to extract outer hull
|
|
/// igl::copyleft::cgal::outer_hull(SV,SF,G,J,flip);
|
|
///
|
|
template <
|
|
typename DerivedV,
|
|
typename DerivedF,
|
|
typename DerivedVV,
|
|
typename DerivedFF,
|
|
typename DerivedIF,
|
|
typename DerivedJ,
|
|
typename DerivedIM>
|
|
IGL_INLINE void remesh_self_intersections(
|
|
const Eigen::MatrixBase<DerivedV> & V,
|
|
const Eigen::MatrixBase<DerivedF> & F,
|
|
const RemeshSelfIntersectionsParam & params,
|
|
Eigen::PlainObjectBase<DerivedVV> & VV,
|
|
Eigen::PlainObjectBase<DerivedFF> & FF,
|
|
Eigen::PlainObjectBase<DerivedIF> & IF,
|
|
Eigen::PlainObjectBase<DerivedJ> & J,
|
|
Eigen::PlainObjectBase<DerivedIM> & IM);
|
|
/// \overload
|
|
///
|
|
/// IM above is _applied_ to merge duplicated vertices in VV.
|
|
template <
|
|
typename DerivedV,
|
|
typename DerivedF,
|
|
typename DerivedVV,
|
|
typename DerivedFF,
|
|
typename DerivedIF,
|
|
typename DerivedJ>
|
|
IGL_INLINE void remesh_self_intersections(
|
|
const Eigen::MatrixBase<DerivedV> & V,
|
|
const Eigen::MatrixBase<DerivedF> & F,
|
|
const RemeshSelfIntersectionsParam & params,
|
|
Eigen::PlainObjectBase<DerivedVV> & VV,
|
|
Eigen::PlainObjectBase<DerivedFF> & FF,
|
|
Eigen::PlainObjectBase<DerivedIF> & IF,
|
|
Eigen::PlainObjectBase<DerivedJ> & J);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef IGL_STATIC_LIBRARY
|
|
# include "remesh_self_intersections.cpp"
|
|
#endif
|
|
|
|
#endif
|
|
|