447 lines
14 KiB
C++
447 lines
14 KiB
C++
/****************************************************************************
|
|
* VCGLib o o *
|
|
* Visual and Computer Graphics Library o o *
|
|
* _ O _ *
|
|
* Copyright(C) 2004 \/)\/ *
|
|
* 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. *
|
|
* *
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
History
|
|
|
|
$Log: not supported by cvs2svn $
|
|
Revision 1.10 2007/10/17 09:49:50 cignoni
|
|
correct management of point only files
|
|
|
|
Revision 1.9 2007/03/12 16:40:16 tarini
|
|
Texture coord name change! "TCoord" and "Texture" are BAD. "TexCoord" is GOOD.
|
|
|
|
Revision 1.8 2007/03/08 11:27:52 ganovelli
|
|
added include to tcoord2
|
|
|
|
Revision 1.7 2007/02/16 21:12:13 m_di_benedetto
|
|
Commented out strange abort in WriteMaterials()
|
|
|
|
Revision 1.6 2006/12/07 00:37:58 cignoni
|
|
Corrected bug in the management of deleted vertices
|
|
|
|
Revision 1.5 2006/10/09 19:58:08 cignoni
|
|
Added casts to remove warnings
|
|
|
|
Revision 1.4 2006/09/18 12:14:38 cignoni
|
|
Removed bug in the creation of the material filename
|
|
|
|
Revision 1.3 2006/03/07 13:19:29 cignoni
|
|
First Release with OBJ import support
|
|
|
|
Revision 1.2 2006/02/28 14:38:09 corsini
|
|
remove qt include
|
|
|
|
Revision 1.1 2006/02/16 19:28:36 fmazzant
|
|
transfer of Export_3ds.h, Export_obj.h, Io_3ds_obj_material.h from Meshlab to vcg
|
|
|
|
Revision 1.7 2006/02/06 11:04:40 fmazzant
|
|
added file material.h. it include struct Material, CreateNewMaterial(...) and MaterialsCompare(...)
|
|
|
|
Revision 1.6 2006/02/04 10:18:46 fmazzant
|
|
clean code
|
|
|
|
Revision 1.5 2006/02/03 10:04:41 fmazzant
|
|
no significant updated
|
|
|
|
Revision 1.4 2006/01/30 14:02:05 fmazzant
|
|
bug-fix
|
|
|
|
Revision 1.3 2006/01/29 23:52:43 fmazzant
|
|
correct a small bug
|
|
|
|
Revision 1.2 2006/01/29 18:33:42 fmazzant
|
|
added some comment to the code
|
|
|
|
Revision 1.1 2006/01/29 16:33:03 fmazzant
|
|
moved export_obj and export_3ds from test/io into meshio/
|
|
|
|
Revision 1.34 2006/01/22 23:59:01 fmazzant
|
|
changed default value of diffuse. 1.0 -> 0.8
|
|
|
|
Revision 1.33 2006/01/19 09:36:29 fmazzant
|
|
cleaned up history log
|
|
|
|
Revision 1.32 2006/01/18 00:45:56 fmazzant
|
|
added control on face's diffuse
|
|
|
|
Revision 1.31 2006/01/17 13:48:54 fmazzant
|
|
added capability mask on export file format
|
|
|
|
Revision 1.30 2006/01/15 00:45:40 fmazzant
|
|
extend mask exporter for all type file format +
|
|
|
|
Revision 1.29 2006/01/14 00:03:26 fmazzant
|
|
added more controls
|
|
|
|
****************************************************************************/
|
|
|
|
#ifndef __VCGLIB_EXPORT_OBJ
|
|
#define __VCGLIB_EXPORT_OBJ
|
|
|
|
#include <wrap/callback.h>
|
|
#include <vcg/complex/trimesh/allocate.h>
|
|
#include <vcg/space/texcoord2.h>
|
|
#include <wrap/io_trimesh/io_mask.h>
|
|
#include "io_material.h"
|
|
#include <iostream>
|
|
#include <fstream>
|
|
#include <map>
|
|
|
|
namespace vcg {
|
|
namespace tri {
|
|
namespace io {
|
|
|
|
template <class SaveMeshType>
|
|
class ExporterOBJ
|
|
{
|
|
public:
|
|
typedef typename SaveMeshType::FaceIterator FaceIterator;
|
|
typedef typename SaveMeshType::VertexIterator VertexIterator;
|
|
typedef typename SaveMeshType::VertexType VertexType;
|
|
|
|
/*
|
|
enum of all the types of error
|
|
*/
|
|
enum SaveError
|
|
{
|
|
E_NOERROR, // 0
|
|
E_CANTOPENFILE, // 1
|
|
E_CANTCLOSEFILE, // 2
|
|
E_UNESPECTEDEOF, // 3
|
|
E_ABORTED, // 4
|
|
E_NOTDEFINITION, // 5
|
|
E_NOTVEXTEXVALID, // 6
|
|
E_NOTFACESVALID // 7
|
|
};
|
|
|
|
/*
|
|
this function takes an index and the relative error message gets back
|
|
*/
|
|
static const char* ErrorMsg(int error)
|
|
{
|
|
static const char* obj_error_msg[] =
|
|
{
|
|
"No errors", // 0
|
|
"Can't open file", // 1
|
|
"can't close file", // 2
|
|
"Premature End of file", // 3
|
|
"File saving aborted", // 4
|
|
"Function not defined", // 5
|
|
"Vertices not valid", // 6
|
|
"Faces not valid" // 7
|
|
};
|
|
|
|
if(error>7 || error<0) return "Unknown error";
|
|
else return obj_error_msg[error];
|
|
};
|
|
|
|
/*
|
|
returns mask of capability one define with what are the saveable information of the format.
|
|
*/
|
|
static int GetExportMaskCapability()
|
|
{
|
|
int capability = 0;
|
|
|
|
//vert
|
|
capability |= vcg::tri::io::Mask::IOM_VERTNORMAL;
|
|
|
|
//face
|
|
capability |= vcg::tri::io::Mask::IOM_FACECOLOR;
|
|
|
|
//wedg
|
|
capability |= vcg::tri::io::Mask::IOM_WEDGTEXCOORD;
|
|
capability |= vcg::tri::io::Mask::IOM_WEDGNORMAL;
|
|
|
|
return capability;
|
|
}
|
|
|
|
/*
|
|
function which saves in OBJ file format
|
|
*/
|
|
static int Save(SaveMeshType &m, const char * filename, int mask, CallBackPos *cb=0)
|
|
{
|
|
if(m.vn == 0) return E_NOTVEXTEXVALID;
|
|
// Commented out this control. You should be allowed to save a point cloud.
|
|
// if(m.fn == 0) return E_NOTFACESVALID;
|
|
|
|
int current = 0;
|
|
int totalPrimitives = m.vn+m.fn;
|
|
|
|
std::vector<Material> materialVec;
|
|
|
|
std::string fn(filename);
|
|
int LastSlash=fn.size()-1;
|
|
while(LastSlash>=0 && fn[LastSlash]!='/')
|
|
--LastSlash;
|
|
|
|
FILE *fp;
|
|
fp = fopen(filename,"w");
|
|
if(fp == NULL) return E_CANTOPENFILE;
|
|
|
|
fprintf(fp,"####\n#\n# OBJ File Generated by Meshlab\n#\n####\n");
|
|
fprintf(fp,"# Object %s\n#\n# Vertices: %d\n# Faces: %d\n#\n####\n",fn.substr(LastSlash+1).c_str(),m.vn,m.fn);
|
|
|
|
//library materialVec
|
|
if( (mask & vcg::tri::io::Mask::IOM_FACECOLOR) || (mask & Mask::IOM_WEDGTEXCOORD) )
|
|
fprintf(fp,"mtllib ./%s.mtl\n\n",fn.substr(LastSlash+1).c_str());
|
|
|
|
//vertexs + normal
|
|
VertexIterator vi;
|
|
std::map<Point3f,int> NormalVertex;
|
|
std::vector<int> VertexId(m.vert.size());
|
|
int numvert = 0;
|
|
int curNormalIndex = 1;
|
|
for(vi=m.vert.begin(); vi!=m.vert.end(); ++vi) if( !(*vi).IsD() )
|
|
{
|
|
VertexId[vi-m.vert.begin()]=numvert;
|
|
//saves normal per vertex
|
|
if((mask & Mask::IOM_VERTNORMAL) || (mask & vcg::tri::io::Mask::IOM_WEDGTEXCOORD) )
|
|
{
|
|
if(AddNewNormalVertex(NormalVertex,(*vi).N(),curNormalIndex))
|
|
{
|
|
fprintf(fp,"vn %f %f %f\n",(*vi).N()[0],(*vi).N()[1],(*vi).N()[2]);
|
|
curNormalIndex++;
|
|
}
|
|
}
|
|
|
|
//saves vertex
|
|
fprintf(fp,"v %f %f %f\n",(*vi).P()[0],(*vi).P()[1],(*vi).P()[2]);
|
|
|
|
if (cb !=NULL) {
|
|
if(!(*cb)((100*++current)/totalPrimitives, "writing vertices "))
|
|
{ fclose(fp); return E_ABORTED;} }
|
|
numvert++;
|
|
}
|
|
assert(numvert == m.vn);
|
|
|
|
fprintf(fp,"# %d vertices, %d vertices normals\n\n",m.vn,int(NormalVertex.size()));
|
|
|
|
//faces + texture coords
|
|
FaceIterator fi;
|
|
std::map<vcg::TexCoord2<float>,int> CoordIndexTexture;
|
|
unsigned int material_num = 0;
|
|
int mem_index = 0; //var temporany
|
|
int curTexCoordIndex = 1;
|
|
for(fi=m.face.begin(); fi!=m.face.end(); ++fi) if( !(*fi).IsD() )
|
|
{
|
|
if((mask & Mask::IOM_FACECOLOR) || (mask & Mask::IOM_WEDGTEXCOORD) )
|
|
{
|
|
int index = Materials<SaveMeshType>::CreateNewMaterial(m,materialVec,material_num,fi);
|
|
|
|
if(index == (int)materialVec.size())//inserts a new element material
|
|
{
|
|
material_num++;
|
|
fprintf(fp,"\nusemtl material_%d\n",materialVec[index-1].index);
|
|
mem_index = index-1;
|
|
}
|
|
else
|
|
{
|
|
if(index != mem_index)//inserts old name elemente material
|
|
{
|
|
fprintf(fp,"\nusemtl material_%d\n",materialVec[index].index);
|
|
mem_index=index;
|
|
}
|
|
}
|
|
}
|
|
|
|
//saves texture coord
|
|
for(unsigned int k=0;k<3;k++)
|
|
{
|
|
if(HasPerWedgeTexCoord(m) && (mask & Mask::IOM_WEDGTEXCOORD))
|
|
{
|
|
if(AddNewTextureCoord(CoordIndexTexture,(*fi).WT(k),curTexCoordIndex))
|
|
{
|
|
fprintf(fp,"vt %f %f\n",(*fi).WT(k).u(),(*fi).WT(k).v());
|
|
curTexCoordIndex++; //ncreases the value number to be associated to the Texture
|
|
}
|
|
}
|
|
}
|
|
|
|
fprintf(fp,"f ");
|
|
for(unsigned int k=0;k<3;k++)
|
|
{
|
|
if(k!=0) fprintf(fp," ");
|
|
int vInd = -1;
|
|
// +1 because Obj file format begins from index = 1 but not from index = 0.
|
|
vInd = VertexId[GetIndexVertex(m, (*fi).V(k))] + 1;//index of vertex per face
|
|
|
|
int vt = -1;
|
|
if(mask & Mask::IOM_WEDGTEXCOORD)
|
|
vt = GetIndexVertexTexture(CoordIndexTexture,(*fi).WT(k));//index of vertex texture per face
|
|
|
|
int vn = -1;
|
|
if((mask & Mask::IOM_VERTNORMAL) || (mask & Mask::IOM_WEDGNORMAL) )
|
|
vn = GetIndexVertexNormal(m, NormalVertex, (*fi).V(k)->cN());//index of vertex normal per face.
|
|
|
|
//writes elements on file obj
|
|
WriteFacesElement(fp,vInd,vt,vn);
|
|
}
|
|
fprintf(fp,"\n");
|
|
if (cb !=NULL) {
|
|
if(!(*cb)((100*++current)/totalPrimitives, "writing vertices "))
|
|
{ fclose(fp); return E_ABORTED;}
|
|
}
|
|
|
|
}//for
|
|
fprintf(fp,"# %d faces, %d coords texture\n\n",m.fn,int(CoordIndexTexture.size()));
|
|
|
|
fprintf(fp,"# End of File");
|
|
fclose(fp);
|
|
|
|
int r = 0;
|
|
if((mask & Mask::IOM_WEDGTEXCOORD) || (mask & Mask::IOM_FACECOLOR) )
|
|
r = WriteMaterials(materialVec, filename,cb);//write material
|
|
|
|
if(r!= E_NOERROR)
|
|
return r;
|
|
return E_NOERROR;
|
|
}
|
|
|
|
/*
|
|
returns index of the vertex
|
|
*/
|
|
inline static int GetIndexVertex(SaveMeshType &m, VertexType *p)
|
|
{
|
|
return p-&*(m.vert.begin());
|
|
}
|
|
|
|
/*
|
|
returns index of the texture coord
|
|
*/
|
|
inline static int GetIndexVertexTexture(std::map<TexCoord2<float>,int> &mapTexToInt, const vcg::TexCoord2<float> &wt)
|
|
{
|
|
std::map<vcg::TexCoord2<float>,int>::iterator iter= mapTexToInt.find(wt);
|
|
if(iter != mapTexToInt.end()) return (*iter).second;
|
|
else return -1;
|
|
// Old wrong version.
|
|
// int index = mapTexToInt[wt];
|
|
// if(index!=0){return index;}
|
|
}
|
|
|
|
/*
|
|
returns index of the vertex normal
|
|
*/
|
|
inline static int GetIndexVertexNormal(SaveMeshType &/*m*/, std::map<Point3f,int> &mapNormToInt, const Point3f &norm )
|
|
{
|
|
std::map<Point3f,int>::iterator iter= mapNormToInt.find(norm);
|
|
if(iter != mapNormToInt.end()) return (*iter).second;
|
|
else return -1;
|
|
// Old wrong version.
|
|
// int index = mapNormToInt[m.vert[iv].N()];
|
|
// if(index!=0){return index;}
|
|
}
|
|
|
|
/*
|
|
write elements on file
|
|
|
|
f v/tc/vn v/tc/vn v/tc/vn ...
|
|
f v/tc v/tc v/tc ...
|
|
f v//vn v//vn v//vn ...
|
|
f v v v ...
|
|
|
|
*/
|
|
inline static void WriteFacesElement(FILE *fp,int v,int vt, int vn)
|
|
{
|
|
fprintf(fp,"%d",v);
|
|
if(vt!=-1)
|
|
{
|
|
fprintf(fp,"/%d",vt);
|
|
if(vn!=-1)
|
|
fprintf(fp,"/%d",vn);
|
|
}
|
|
else if(vn!=-1)
|
|
fprintf(fp,"//%d",vn);
|
|
}
|
|
|
|
/*
|
|
adds a new index to the coordinate of Texture if it is the first time
|
|
which is otherwise met not execute anything
|
|
*/
|
|
inline static bool AddNewTextureCoord(std::map<vcg::TexCoord2<float>,int> &m, const vcg::TexCoord2<float> &wt,int value)
|
|
{
|
|
int index = m[wt];
|
|
if(index==0){m[wt]=value;return true;}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
adds a new index to the normal per vertex if it is the first time
|
|
which is otherwise met does not execute anything
|
|
*/
|
|
inline static bool AddNewNormalVertex(std::map<Point3f,int> &m, Point3f &n ,int value)
|
|
{
|
|
int index = m[n];
|
|
if(index==0){m[n]=value;return true;}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
writes material into file
|
|
*/
|
|
inline static int WriteMaterials(std::vector<Material> &materialVec, const char * filename, CallBackPos *cb=0)
|
|
{
|
|
std::string fileName = std::string(filename);
|
|
fileName+=".mtl";
|
|
|
|
if(materialVec.size() > 0)
|
|
{
|
|
FILE *fp;
|
|
fp = fopen(fileName.c_str(),"w");
|
|
if(fp==NULL)return E_ABORTED;
|
|
|
|
fprintf(fp,"#\n# Wavefront material file\n# Converted by Meshlab Group\n#\n\n");
|
|
|
|
int current = 0;
|
|
|
|
for(unsigned int i=0;i<materialVec.size();i++)
|
|
{
|
|
if (cb !=NULL)
|
|
(*cb)((100 * ++current)/materialVec.size(), "saving material file ");
|
|
else
|
|
{ /* fclose(fp); return E_ABORTED; */ }
|
|
|
|
fprintf(fp,"newmtl material_%d\n",materialVec[i].index);
|
|
fprintf(fp,"Ka %f %f %f\n",materialVec[i].Ka[0],materialVec[i].Ka[1],materialVec[i].Ka[2]);
|
|
fprintf(fp,"Kd %f %f %f\n",materialVec[i].Kd[0],materialVec[i].Kd[1],materialVec[i].Kd[2]);
|
|
fprintf(fp,"Ks %f %f %f\n",materialVec[i].Ks[0],materialVec[i].Ks[1],materialVec[i].Ks[2]);
|
|
fprintf(fp,"Tr %f\n",materialVec[i].Tr);
|
|
fprintf(fp,"illum %d\n",materialVec[i].illum);
|
|
fprintf(fp,"Ns %f\n",materialVec[i].Ns);
|
|
|
|
if(materialVec[i].map_Kd.size()>0)
|
|
fprintf(fp,"map_Kd %s\n",materialVec[i].map_Kd.c_str());
|
|
fprintf(fp,"\n");
|
|
}
|
|
fclose(fp);
|
|
}
|
|
return E_NOERROR;
|
|
}
|
|
|
|
}; // end class
|
|
} // end Namespace tri
|
|
} // end Namespace io
|
|
} // end Namespace vcg
|
|
|
|
#endif
|