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/* ----------------------------------------------------------------------- *
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* This file is part of GEL, http://www.imm.dtu.dk/GEL
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* Copyright (C) the authors and DTU Informatics
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* For license and list of authors, see ../../doc/intro.pdf
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* ----------------------------------------------------------------------- */
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#include "off_save.h"
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "../CGLA/Vec3f.h"
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#include "Manifold.h"
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#include "AttributeVector.h"
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namespace HMesh
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{
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using namespace std;
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using namespace CGLA;
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bool off_save(const string& filename, Manifold& m)
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{
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ofstream os(filename.data());
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if(os.bad()){
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return false;
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}
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VertexAttributeVector<int> vmap(m.allocated_vertices());
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os << "OFF" << "\n";
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os << m.no_vertices() << " " << m.no_faces() << " " << m.no_halfedges()/2 << "\n";
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int k = 0;
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for(VertexIDIterator v = m.vertices_begin(); v != m.vertices_end(); ++v){
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Vec3d p = m.pos(*v);
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os << "v "<< p[0] << " " << p[1] << " " << p[2] << "\n";
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vmap[*v] = k++;
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}
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for(FaceIDIterator f = m.faces_begin(); f != m.faces_end(); ++f){
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vector<int> verts;
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for(Walker w = m.walker(*f); !w.full_circle(); w = w.circulate_face_ccw()){
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int idx = vmap[w.vertex()];
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assert(static_cast<size_t>(idx) < m.no_vertices());
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verts.push_back(idx);
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}
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os << verts.size() << " ";
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for(size_t i = 0; i < verts.size() ; ++i){
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os << verts[i] << " ";
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}
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os << "\n";
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}
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return true;
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}
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}
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