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45 lines
1.8 KiB
45 lines
1.8 KiB
1 year ago
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#ifndef IGL_COLLAPSE_EDGE_WOULD_CREATE_INTERSECTIONS_H
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#define IGL_COLLAPSE_EDGE_WOULD_CREATE_INTERSECTIONS_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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/// Determine if collapse the edge `e` would create new intersections.
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///
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/// @param[in] e index into E of edge to try to collapse. E(e,:) = [s d] or [d s] so
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/// that s<d, then d is collapsed to s.
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/// @param[in] p dim list of vertex position where to place merged vertex
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/// [mesh inputs]
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/// @param[in,out] V #V by dim list of vertex positions, lesser index of E(e,:) will be set
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/// to midpoint of edge.
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/// @param[in,out] F #F by 3 list of face indices into V.
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/// @param[in,out] E #E by 2 list of edge indices into V.
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/// @param[in,out] EMAP #F*3 list of indices into E, mapping each directed edge to unique
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/// unique edge in E
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/// @param[in,out] EF #E by 2 list of edge flaps, EF(e,0)=f means e=(i-->j) is the edge of
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/// F(f,:) opposite the vth corner, where EI(e,0)=v. Similarly EF(e,1) "
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/// e=(j->i)
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/// @param[in,out] EI #E by 2 list of edge flap corners (see above).
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/// [mesh inputs]
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/// @param[in] tree AABB tree whose leaves correspond to the current
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/// (non-null) faces in (V,F)
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///
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/// \see collapse_edge
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template <typename DerivedV, int DIM> class AABB;
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IGL_INLINE bool collapse_edge_would_create_intersections(
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const int e,
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const Eigen::RowVectorXd & p,
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const Eigen::MatrixXd & V,
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const Eigen::MatrixXi & F,
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const Eigen::MatrixXi & E,
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const Eigen::VectorXi & EMAP,
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const Eigen::MatrixXi & EF,
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const Eigen::MatrixXi & EI,
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const igl::AABB<Eigen::MatrixXd,3> & tree,
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const int inf_face_id = -1);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "collapse_edge_would_create_intersections.cpp"
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#endif
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#endif
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