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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
83 lines
4.0 KiB
C++
83 lines
4.0 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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#ifdef WIN32
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#define _USE_MATH_DEFINES
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#endif
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#include <cmath>
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#include "comb_frame_field.h"
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#include "local_basis.h"
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#include "PI.h"
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template <typename DerivedV, typename DerivedF, typename DerivedP>
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IGL_INLINE void igl::comb_frame_field(const Eigen::PlainObjectBase<DerivedV> &V,
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const Eigen::PlainObjectBase<DerivedF> &F,
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const Eigen::PlainObjectBase<DerivedP> &PD1,
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const Eigen::PlainObjectBase<DerivedP> &PD2,
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const Eigen::PlainObjectBase<DerivedP> &BIS1_combed,
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const Eigen::PlainObjectBase<DerivedP> &BIS2_combed,
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Eigen::PlainObjectBase<DerivedP> &PD1_combed,
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Eigen::PlainObjectBase<DerivedP> &PD2_combed)
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{
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DerivedV B1, B2, B3;
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igl::local_basis(V,F,B1,B2,B3);
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PD1_combed.resize(BIS1_combed.rows(),3);
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PD2_combed.resize(BIS2_combed.rows(),3);
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for (unsigned i=0; i<PD1.rows();++i)
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{
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Eigen::Matrix<typename DerivedP::Scalar,4,3> DIRs;
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DIRs <<
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PD1.row(i),
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-PD1.row(i),
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PD2.row(i),
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-PD2.row(i);
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std::vector<double> a(4);
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double a_combed = atan2(B2.row(i).dot(BIS1_combed.row(i)),B1.row(i).dot(BIS1_combed.row(i)));
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// center on the combed sector center
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for (unsigned j=0;j<4;++j)
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{
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a[j] = atan2(B2.row(i).dot(DIRs.row(j)),B1.row(i).dot(DIRs.row(j))) - a_combed;
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//make it positive by adding some multiple of 2pi
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a[j] += std::ceil (std::max(0., -a[j]) / (igl::PI*2.)) * (igl::PI*2.);
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//take modulo 2pi
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a[j] = fmod(a[j], (igl::PI*2.));
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}
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// now the max is u and the min is v
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int m = std::min_element(a.begin(),a.end())-a.begin();
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int M = std::max_element(a.begin(),a.end())-a.begin();
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assert(
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((m>=0 && m<=1) && (M>=2 && M<=3))
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((m>=2 && m<=3) && (M>=0 && M<=1))
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);
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PD1_combed.row(i) = DIRs.row(m);
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PD2_combed.row(i) = DIRs.row(M);
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}
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// PD1_combed = BIS1_combed;
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// PD2_combed = BIS2_combed;
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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template void igl::comb_frame_field<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3>, Eigen::Matrix<double, -1, 3, 0, -1, 3> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&);
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template void igl::comb_frame_field<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&);
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#endif
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