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Building igl statically and moving to the dep scripts
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.
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1095 changed files with 181 additions and 5 deletions
153
src/libigl/igl/boundary_loop.cpp
Executable file
153
src/libigl/igl/boundary_loop.cpp
Executable file
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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 Stefan Brugger <stefanbrugger@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 "boundary_loop.h"
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#include "slice.h"
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#include "triangle_triangle_adjacency.h"
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#include "vertex_triangle_adjacency.h"
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#include "is_border_vertex.h"
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#include <set>
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template <typename DerivedF, typename Index>
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IGL_INLINE void igl::boundary_loop(
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const Eigen::PlainObjectBase<DerivedF> & F,
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std::vector<std::vector<Index> >& L)
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{
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using namespace std;
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using namespace Eigen;
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if(F.rows() == 0)
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return;
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VectorXd Vdummy(F.maxCoeff()+1,1);
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DerivedF TT,TTi;
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vector<std::vector<int> > VF, VFi;
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triangle_triangle_adjacency(F,TT,TTi);
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vertex_triangle_adjacency(Vdummy,F,VF,VFi);
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vector<bool> unvisited = is_border_vertex(Vdummy,F);
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set<int> unseen;
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for (size_t i = 0; i < unvisited.size(); ++i)
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{
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if (unvisited[i])
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unseen.insert(unseen.end(),i);
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}
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while (!unseen.empty())
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{
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vector<Index> l;
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// Get first vertex of loop
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int start = *unseen.begin();
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unseen.erase(unseen.begin());
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unvisited[start] = false;
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l.push_back(start);
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bool done = false;
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while (!done)
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{
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// Find next vertex
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bool newBndEdge = false;
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int v = l[l.size()-1];
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int next;
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for (int i = 0; i < (int)VF[v].size() && !newBndEdge; i++)
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{
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int fid = VF[v][i];
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if (TT.row(fid).minCoeff() < 0.) // Face contains boundary edge
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{
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int vLoc = -1;
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if (F(fid,0) == v) vLoc = 0;
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if (F(fid,1) == v) vLoc = 1;
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if (F(fid,2) == v) vLoc = 2;
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int vNext = F(fid,(vLoc + 1) % F.cols());
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newBndEdge = false;
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if (unvisited[vNext] && TT(fid,vLoc) < 0)
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{
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next = vNext;
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newBndEdge = true;
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}
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}
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}
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if (newBndEdge)
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{
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l.push_back(next);
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unseen.erase(next);
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unvisited[next] = false;
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}
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else
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done = true;
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}
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L.push_back(l);
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}
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}
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template <typename DerivedF, typename Index>
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IGL_INLINE void igl::boundary_loop(
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const Eigen::PlainObjectBase<DerivedF>& F,
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std::vector<Index>& L)
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{
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using namespace Eigen;
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using namespace std;
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if(F.rows() == 0)
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return;
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vector<vector<int> > Lall;
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boundary_loop(F,Lall);
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int idxMax = -1;
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size_t maxLen = 0;
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for (size_t i = 0; i < Lall.size(); ++i)
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{
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if (Lall[i].size() > maxLen)
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{
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maxLen = Lall[i].size();
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idxMax = i;
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}
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}
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//Check for meshes without boundary
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if (idxMax == -1)
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{
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L.clear();
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return;
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}
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L.resize(Lall[idxMax].size());
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for (size_t i = 0; i < Lall[idxMax].size(); ++i)
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{
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L[i] = Lall[idxMax][i];
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}
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}
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template <typename DerivedF, typename DerivedL>
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IGL_INLINE void igl::boundary_loop(
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const Eigen::PlainObjectBase<DerivedF>& F,
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Eigen::PlainObjectBase<DerivedL>& L)
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{
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using namespace Eigen;
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using namespace std;
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if(F.rows() == 0)
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return;
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vector<int> Lvec;
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boundary_loop(F,Lvec);
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L.resize(Lvec.size());
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for (size_t i = 0; i < Lvec.size(); ++i)
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L(i) = Lvec[i];
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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::boundary_loop<Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
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#endif
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