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#ifndef IGL_STRAIGHTEN_SEAMS_H
#define IGL_STRAIGHTEN_SEAMS_H
#include "igl_inline.h"
#include <Eigen/Core>
namespace igl
{
// STRAIGHTEN_SEAMS Given a obj-style mesh with (V,F) defining the geometric
// surface of the mesh and (VT,FT) defining the
// parameterization/texture-mapping of the mesh in the uv-domain, find all
// seams and boundaries in the texture-mapping and "straighten" them,
// remapping vertices along the boundary and in the interior. This will be
// careful to consistently straighten multiple seams in the texture-mesh
// corresponding to the same edge chains in the surface-mesh.
//
// [UT] = straighten_seams(V,F,VT,FT)
//
// Inputs:
// V #V by 3 list of vertices
// F #F by 3 list of triangle indices
// VT #VT by 2 list of texture coordinates
// FT #F by 3 list of triangle texture coordinates
// Optional:
// 'Tol' followed by Ramer-Douglas-Peucker tolerance as a fraction of the
// curves bounding box diagonal (see dpsimplify)
// Outputs:
// UE #UE by 2 list of indices into VT of coarse output polygon edges
// UT #VT by 3 list of new texture coordinates
// OT #OT by 2 list of indices into VT of boundary edges
//
// See also: simplify_curve, dpsimplify
template <
typename DerivedV,
typename DerivedF,
typename DerivedVT,
typename DerivedFT,
typename Scalar,
typename DerivedUE,
typename DerivedUT,
typename DerivedOT>
IGL_INLINE void straighten_seams(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedF> & F,
const Eigen::MatrixBase<DerivedVT> & VT,
const Eigen::MatrixBase<DerivedFT> & FT,
const Scalar tol,
Eigen::PlainObjectBase<DerivedUE> & UE,
Eigen::PlainObjectBase<DerivedUT> & UT,
Eigen::PlainObjectBase<DerivedOT> & OT);
}
#ifndef IGL_STATIC_LIBRARY
# include "straighten_seams.cpp"
#endif
#endif
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