44 lines
2.0 KiB
C++
44 lines
2.0 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>, Olga Diamanti <olga.diam@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_CROSS_FIELD_MISMATCH_H
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#define IGL_CROSS_FIELD_MISMATCH_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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// Calculates the mismatch (integer), at each face edge, of a cross field defined on the mesh faces.
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// The integer mismatch is a multiple of pi/2 that transforms the cross on one side of the edge to
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// the cross on the other side. It represents the deviation from a Lie connection across the edge.
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// Inputs:
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// V #V by 3 eigen Matrix of mesh vertex 3D positions
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// F #F by 3 eigen Matrix of face (quad) indices
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// PD1 #F by 3 eigen Matrix of the first per face cross field vector
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// PD2 #F by 3 eigen Matrix of the second per face cross field vector
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// isCombed boolean, specifying whether the field is combed (i.e. matching has been precomputed.
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// If not, the field is combed first.
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// Output:
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// mismatch #F by 3 eigen Matrix containing the integer mismatch of the cross field
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// across all face edges
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//
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template <typename DerivedV, typename DerivedF, typename DerivedM>
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IGL_INLINE void cross_field_mismatch(const Eigen::PlainObjectBase<DerivedV> &V,
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const Eigen::PlainObjectBase<DerivedF> &F,
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const Eigen::PlainObjectBase<DerivedV> &PD1,
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const Eigen::PlainObjectBase<DerivedV> &PD2,
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const bool isCombed,
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Eigen::PlainObjectBase<DerivedM> &mismatch);
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}
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#ifndef IGL_STATIC_LIBRARY
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#include "cross_field_mismatch.cpp"
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#endif
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#endif
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