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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004-2016 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/**
@name Save in OFF format
*/
//@{
#ifndef __VCGLIB_EXPORT_OFF
#define __VCGLIB_EXPORT_OFF
#include <stdio.h>
#include <wrap/io_trimesh/io_mask.h>
#include<wrap/io_trimesh/precision.h>
#include <vcg/complex/algorithms/clean.h>
#include <vcg/complex/algorithms/polygon_support.h>
namespace vcg {
namespace tri {
namespace io {
template <class SaveMeshType>
class ExporterOFF
{
public:
typedef typename SaveMeshType::VertexPointer VertexPointer;
typedef typename SaveMeshType::ScalarType ScalarType;
typedef typename SaveMeshType::VertexType VertexType;
typedef typename SaveMeshType::FaceType FaceType;
typedef typename SaveMeshType::FacePointer FacePointer;
typedef typename SaveMeshType::VertexIterator VertexIterator;
typedef typename SaveMeshType::FaceIterator FaceIterator;
static int Save(SaveMeshType &m, const char * filename, int mask=0 )
{
vcg::face::Pos<FaceType> he;
vcg::face::Pos<FaceType> hei;
FILE * fpout = fopen(filename,"w");
if(fpout==NULL) return 1; // 1 is the error code for cant'open, see the ErrorMsg function
if( tri::HasPerVertexColor(m) && (mask & io::Mask::IOM_VERTNORMAL))
fprintf(fpout,"N");
if( tri::HasPerVertexColor(m) && (mask & io::Mask::IOM_VERTCOLOR))
fprintf(fpout,"C");
if( tri::HasPerVertexTexCoord(m) && (mask & io::Mask::IOM_VERTTEXCOORD))
fprintf(fpout,"ST");
fprintf(fpout,"OFF\n");
int polynumber;
if (mask &io::Mask::IOM_BITPOLYGONAL)
polynumber = tri::Clean<SaveMeshType>::CountBitLargePolygons(m);
else
polynumber = m.fn;
fprintf(fpout,"%d %d 0\n", m.vn, polynumber); // note that as edge number we simply write zero
//vertices
const int DGT = vcg::tri::io::Precision<ScalarType>::digits();
for(auto vp=m.vert.begin();vp!=m.vert.end();++vp)
{
if( ! vp->IsD() )
{ // ***** ASCII *****
fprintf(fpout,"%.*g %.*g %.*g " ,DGT,vp->P()[0],DGT,vp->P()[1],DGT,vp->P()[2]);
if( tri::HasPerVertexColor(m) && (mask & io::Mask::IOM_VERTCOLOR) )
fprintf(fpout,"%d %d %d %d ",vp->C()[0],vp->C()[1],vp->C()[2],vp->C()[3] );
if( tri::HasPerVertexNormal(m) && (mask & io::Mask::IOM_VERTNORMAL) )
fprintf(fpout,"%g %g %g ", double(vp->N()[0]),double(vp->N()[1]),double(vp->N()[2]));
if( tri::HasPerVertexTexCoord(m) && (mask & io::Mask::IOM_VERTTEXCOORD) )
fprintf(fpout,"%g %g ",vp->T().u(),vp->T().v());
fprintf(fpout,"\n");
}
}
if (mask &io::Mask::IOM_BITPOLYGONAL) {
tri::RequireFFAdjacency(m);
std::vector<VertexPointer> polygon;
tri::UpdateFlags<SaveMeshType>::FaceClearV(m);
for(FaceIterator fi=m.face.begin();fi!=m.face.end();++fi) if (!fi->IsD()) if (!fi->IsV()) {
vcg::tri::PolygonSupport<SaveMeshType,SaveMeshType>::ExtractPolygon(&*fi,polygon);
if(!polygon.empty())
{
fprintf(fpout,"%d ", int(polygon.size()) );
for (size_t i=0; i<polygon.size(); i++) fprintf(fpout,"%d ", polygon[i]->Flags() );
fprintf(fpout,"\n");
}
}
}
else {
for(FaceIterator fi=m.face.begin();fi!=m.face.end();++fi)
{
if( ! fi->IsD() )
{
fprintf(fpout,"%i ",fi->VN());
for(int i=0;i<fi->VN();++i)
fprintf(fpout,"%lu ",tri::Index(m,fi->V(i)));
if( tri::HasPerFaceColor(m) && (mask & io::Mask::IOM_FACECOLOR) )
fprintf(fpout,"%i %i %i", fi->C()[0],fi->C()[1],fi->C()[2] );
fprintf(fpout,"\n");
}
}
}
int result = 0;
if (ferror(fpout)) result = 2;
fclose(fpout);
return result;
}
static const char *ErrorMsg(int error)
{
static std::vector<std::string> off_error_msg;
if (off_error_msg.empty())
{
off_error_msg.resize(3);
off_error_msg[0] = "No errors";
off_error_msg[1] = "Can't open file";
off_error_msg[2] = "Output Stream error";
}
if (error>2 || error<0) return "Unknown error";
else return off_error_msg[error].c_str();
}
/*
returns mask of capability one define with what are the saveable information of the format.
*/
static int GetExportMaskCapability()
{
int capability = 0;
capability |= vcg::tri::io::Mask::IOM_VERTCOORD;
capability |= vcg::tri::io::Mask::IOM_VERTCOLOR;
capability |= vcg::tri::io::Mask::IOM_VERTTEXCOORD;
capability |= vcg::tri::io::Mask::IOM_FACEINDEX;
capability |= vcg::tri::io::Mask::IOM_FACECOLOR;
capability |= vcg::tri::io::Mask::IOM_BITPOLYGONAL;
return capability;
}
}; // end class
} // end namespace tri
} // end namespace io
} // end namespace vcg
//@}
#endif
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