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/*
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/* ----------------------------------------------------------------------- *
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 *  off_save.cpp
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 * This file is part of GEL, http://www.imm.dtu.dk/GEL
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 *  GEL
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 *
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 *  Created by J. Andreas Bærentzen on 17/02/09.
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 * Copyright (C) the authors and DTU Informatics
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 *  Copyright 2009 __MyCompanyName__. All rights reserved.
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 * For license and list of authors, see ../../doc/intro.pdf
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 *
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 */
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 * ----------------------------------------------------------------------- */
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#include "off_save.h"
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#include <fstream>
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#include <fstream>
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#include <iostream>
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#include <iostream>
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#include <string>
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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 "off_save.h"
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#include "Manifold.h"
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#include "HMesh/FaceCirculator.h"
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#include "AttributeVector.h"
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namespace HMesh
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namespace HMesh
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{
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{
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	using namespace std;
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    using namespace std;
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	using namespace CGLA;
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    using namespace CGLA;
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	using namespace HMesh;
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	bool off_save(const std::string& filename, Manifold& m)
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    bool off_save(const string& filename, Manifold& m)
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	{
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    {
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		ofstream os(filename.data());
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        ofstream os(filename.data());
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        if(os.bad()){
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		if(os.bad()) return false;
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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 " << endl;
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        os << "OFF" << "\n";
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		os << m.no_vertices() << " " << m.no_faces() << " " << m.no_halfedges()/2 << endl;
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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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        int k = 0;
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		vector<int> touched_vals(m.no_vertices());
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		for(VertexIter vi = m.vertices_begin(); vi != m.vertices_end(); ++vi,++k)
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        for(VertexIDIterator v = m.vertices_begin(); v != m.vertices_end(); ++v){
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		{
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			touched_vals[k] = vi->touched;
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			vi->touched = k;
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			Vec3f p = vi->pos;
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            Vec3d p = m.pos(*v);
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			os << p[0] << " " << p[1] << " " << p[2] << endl;
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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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		}
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		for(FaceIter fi = m.faces_begin();fi != m.faces_end(); ++fi)
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        for(FaceIDIterator f = m.faces_begin(); f != m.faces_end(); ++f){
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		{
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			std::vector<int> verts;
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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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			for(FaceCirculator fc(fi);!fc.end();++fc)
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                int idx = vmap[w.vertex()];
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			{
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                assert(static_cast<size_t>(idx) < m.no_vertices());
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				verts.push_back(fc.get_vertex()->touched);
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                verts.push_back(idx);
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			}
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            }
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			os << verts.size() << " ";
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            os << verts.size() << " ";
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			for(size_t i=0;i<verts.size();++i)
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            for(size_t i = 0; i < verts.size() ; ++i){
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			{
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				os << verts[i] << " ";
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                os << verts[i] << " ";
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			}
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            }
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			os << "\n";
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            os << "\n";
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		}
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		k=0;
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        }
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		for(VertexIter vi = m.vertices_begin(); vi != m.vertices_end(); ++vi,++k)
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			vi->touched = touched_vals[k];
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		return true;
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        return true;
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	}
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    }
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}
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}
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