53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
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#ifndef IGL_CUT_TO_DISK_H
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#define IGL_CUT_TO_DISK_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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#include <vector>
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namespace igl
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{
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// Given a triangle mesh, computes a set of edge cuts sufficient to carve the
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// mesh into a topological disk, without disconnecting any connected components.
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// Nothing else about the cuts (including number, total length, or smoothness)
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// is guaranteed to be optimal.
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//
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// Simply-connected components without boundary (topological spheres) are left
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// untouched (delete any edge if you really want a disk).
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// All other connected components are cut into disks. Meshes with boundary are
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// supported; boundary edges will be included as cuts.
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//
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// The cut mesh itself can be materialized using cut_mesh().
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//
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// Implements the triangle-deletion approach described by Gu et al's
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// "Geometry Images."
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//
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// Template Parameters:
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// Index Integrable type large enough to represent the total number of faces
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// and edges in the surface represented by F, and all entries of F.
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//
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// Inputs:
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// F #F by 3 list of the faces (must be triangles)
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//
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// Outputs:
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// cuts List of cuts. Each cut is a sequence of vertex indices (where
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// pairs of consecutive vertices share a face), is simple, and is either
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// a closed loop (in which the first and last indices are identical) or
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// an open curve. Cuts are edge-disjoint.
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//
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template <
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typename DerivedF,
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typename Index>
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IGL_INLINE void cut_to_disk(
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const Eigen::MatrixBase<DerivedF> &F,
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std::vector<std::vector<Index> > &cuts);
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};
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#ifndef IGL_STATIC_LIBRARY
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#include "cut_to_disk.cpp"
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#endif
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#endif
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