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Merged branch 'dev_native' into lm_sla_supports_auto
Added igl library files
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commit
7681d00ee5
2865 changed files with 142806 additions and 22325 deletions
103
src/igl/bounding_box.cpp
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103
src/igl/bounding_box.cpp
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2014 Alec Jacobson <alecjacobson@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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#include "bounding_box.h"
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#include <iostream>
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template <typename DerivedV, typename DerivedBV, typename DerivedBF>
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IGL_INLINE void igl::bounding_box(
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const Eigen::MatrixBase<DerivedV>& V,
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Eigen::PlainObjectBase<DerivedBV>& BV,
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Eigen::PlainObjectBase<DerivedBF>& BF)
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{
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return bounding_box(V,0.,BV,BF);
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}
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template <typename DerivedV, typename DerivedBV, typename DerivedBF>
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IGL_INLINE void igl::bounding_box(
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const Eigen::MatrixBase<DerivedV>& V,
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const typename DerivedV::Scalar pad,
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Eigen::PlainObjectBase<DerivedBV>& BV,
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Eigen::PlainObjectBase<DerivedBF>& BF)
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{
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using namespace std;
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const int dim = V.cols();
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const auto & minV = V.colwise().minCoeff().array()-pad;
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const auto & maxV = V.colwise().maxCoeff().array()+pad;
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// 2^n vertices
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BV.resize((1<<dim),dim);
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// Recursive lambda to generate all 2^n combinations
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const std::function<void(const int,const int,int*,int)> combos =
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[&BV,&minV,&maxV,&combos](
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const int dim,
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const int i,
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int * X,
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const int pre_index)
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{
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for(X[i] = 0;X[i]<2;X[i]++)
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{
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int index = pre_index*2+X[i];
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if((i+1)<dim)
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{
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combos(dim,i+1,X,index);
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}else
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{
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for(int d = 0;d<dim;d++)
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{
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BV(index,d) = (X[d]?minV[d]:maxV[d]);
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}
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}
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}
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};
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Eigen::VectorXi X(dim);
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combos(dim,0,X.data(),0);
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switch(dim)
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{
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case 2:
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BF.resize(4,2);
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BF<<
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3,1,
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1,0,
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0,2,
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2,3;
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break;
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case 3:
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BF.resize(12,3);
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BF<<
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2,0,6,
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0,4,6,
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5,4,0,
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5,0,1,
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6,4,5,
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5,7,6,
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3,0,2,
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1,0,3,
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3,2,6,
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6,7,3,
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5,1,3,
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3,7,5;
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break;
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default:
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assert(false && "Unsupported dimension.");
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break;
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}
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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// generated by autoexplicit.sh
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template void igl::bounding_box<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, 2, 0, -1, 2>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 2, 0, -1, 2> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
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// generated by autoexplicit.sh
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template void igl::bounding_box<Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<double, -1, 2, 0, -1, 2>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::Matrix<double, -1, -1, 1, -1, -1>::Scalar, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 2, 0, -1, 2> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
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// generated by autoexplicit.sh
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template void igl::bounding_box<Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<double, -1, 2, 0, -1, 2>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 2, 0, -1, 2> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
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template void igl::bounding_box<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> >&);
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template void igl::bounding_box<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
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#endif
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