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https://github.com/SoftFever/OrcaSlicer.git
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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.
103 lines
4 KiB
C++
103 lines
4 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 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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