dust3d/third_party/libigl/include/igl/comb_frame_field.h

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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>, Olga Diamanti <olga.diam@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_COMB_FRAME_FIELD_H
#define IGL_COMB_FRAME_FIELD_H
#include "igl_inline.h"
#include <Eigen/Core>
namespace igl
{
// Computes principal matchings of the vectors of a frame field across face edges,
// and generates a combed frame field defined on the mesh faces. This makes use of a
// combed cross field generated by combing the field created by the bisectors of the
// frame field.
// Inputs:
// V #V by 3 eigen Matrix of mesh vertex 3D positions
// F #F by 4 eigen Matrix of face (quad) indices
// PD1 #F by 3 eigen Matrix of the first per face cross field vector
// PD2 #F by 3 eigen Matrix of the second per face cross field vector
// BIS1_combed #F by 3 eigen Matrix of the first combed bisector field vector
// BIS2_combed #F by 3 eigen Matrix of the second combed bisector field vector
// Output:
// PD1_combed #F by 3 eigen Matrix of the first combed cross field vector
// PD2_combed #F by 3 eigen Matrix of the second combed cross field vector
//
template <typename DerivedV, typename DerivedF, typename DerivedP>
IGL_INLINE void comb_frame_field(const Eigen::PlainObjectBase<DerivedV> &V,
const Eigen::PlainObjectBase<DerivedF> &F,
const Eigen::PlainObjectBase<DerivedP> &PD1,
const Eigen::PlainObjectBase<DerivedP> &PD2,
const Eigen::PlainObjectBase<DerivedP> &BIS1_combed,
const Eigen::PlainObjectBase<DerivedP> &BIS2_combed,
Eigen::PlainObjectBase<DerivedP> &PD1_combed,
Eigen::PlainObjectBase<DerivedP> &PD2_combed);
}
#ifndef IGL_STATIC_LIBRARY
#include "comb_frame_field.cpp"
#endif
#endif