/****************************************************************************
* 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. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
Revision 1.8 2006/09/18 08:55:33 cignoni
Corrected return value of save function (zero is no error)
Revision 1.7 2006/01/30 13:43:59 cignoni
Added GetExportMaskCapability
Revision 1.6 2006/01/13 15:47:43 cignoni
Uniformed return type to the style of Open. Now every export function returns 0 in case of success.
Revision 1.5 2005/12/01 00:58:56 cignoni
Added and removed typenames for gcc compiling...
Revision 1.4 2004/10/28 00:52:45 cignoni
Better Doxygen documentation
Revision 1.3 2004/03/09 21:26:47 cignoni
cr lf mismatch
Revision 1.2 2004/03/03 15:35:53 cignoni
Yet another cr lf mismatch
Revision 1.3 2004/02/19 15:28:01 ponchio
*** empty log message ***
Revision 1.2 2004/02/13 02:18:57 cignoni
Edited Comments and GPL license
****************************************************************************/
#ifndef __VCGLIB_EXPORT_STL
#define __VCGLIB_EXPORT_STL
#include <stdio.h>
namespace vcg {
namespace tri {
namespace io {
/**
This class encapsulate a filter for opening stl (sterolitograpy) meshes.
The stl format is quite simple and rather un-flexible. It just stores, in ascii or binary the, unindexed, geometry of the faces.
*/
template <class SaveMeshType>
class ExporterSTL
{
public:
typedef typename SaveMeshType::FaceType FaceType;
typedef unsigned short CallBackSTLFaceAttribute(const SaveMeshType &m, const FaceType &f);
static int Save(SaveMeshType &m, const char * filename, const int &mask, CallBackPos *)
{
return Save(m,filename,true,mask);
}
static int Save(SaveMeshType &m, const char * filename , bool binary =true, int mask=0, const char *objectname=0, bool magicsMode=0)
{
typedef typename SaveMeshType::FaceIterator FaceIterator;
FILE *fp;
fp = fopen(filename,"wb");
if(fp==0)
return 1;
if(binary)
{
// Write Header
char header[128]="VCG ";
if(objectname) strncpy(header,objectname,80);
if(magicsMode)
{
strncpy(header,"COLOR=XXX MATERIAL=AAA BBB CCC ",80);
for(int i=0;i<3;++i)
{
header[0x06+i]=0x7f;
header[0x13+i]=0x7f;
header[0x17+i]=0x7f;
header[0x1b+i]=0x7f;
}
}
fwrite(header,80,1,fp);
// write number of facets
fwrite(&m.fn,1,sizeof(int),fp);
Point3f p;
unsigned short attributes=0;
for(FaceIterator fi=m.face.begin(); fi!=m.face.end(); ++fi) if( !(*fi).IsD() )
{
// For each triangle write the normal, the three coords and a short set to zero
p.Import(vcg::TriangleNormal(*fi).Normalize());
fwrite(p.V(),3,sizeof(float),fp);
for(int k=0;k<3;++k){
p.Import((*fi).V(k)->P());
fwrite(p.V(),3,sizeof(float),fp);
}
if ((mask & Mask::IOM_FACECOLOR) && tri::HasPerFaceColor(m))
{
if(magicsMode) attributes = 32768 | vcg::Color4b::ToUnsignedR5G5B5(fi->C());
else attributes = 32768 | vcg::Color4b::ToUnsignedB5G5R5(fi->C());
}
fwrite(&attributes,1,sizeof(short),fp);
}
}
else
{
if(objectname) fprintf(fp,"solid %s\n",objectname);
else fprintf(fp,"solid vcg\n");
Point3f p;
FaceIterator fi;
for(fi=m.face.begin(); fi!=m.face.end(); ++fi) if( !(*fi).IsD() )
{
// For each triangle write the normal, the three coords and a short set to zero
p.Import(TriangleNormal(*fi).Normalize());
fprintf(fp," facet normal %13e %13e %13e\n",p[0],p[1],p[2]);
fprintf(fp," outer loop\n");
for(int k=0;k<3;++k){
p.Import((*fi).V(k)->P());
fprintf(fp," vertex %13e %13e %13e\n",p[0],p[1],p[2]);
}
fprintf(fp," endloop\n");
fprintf(fp," endfacet\n");
}
fprintf(fp,"endsolid vcg\n");
}
int result = 0;
if (ferror(fp)) result = 2;
fclose(fp);
return result;
}
static const char *ErrorMsg(int error)
{
static std::vector<std::string> stl_error_msg;
if (stl_error_msg.empty())
{
stl_error_msg.resize(3);
stl_error_msg[0] = "No errors";
stl_error_msg[1] = "Can't open file";
stl_error_msg[2] = "Output Stream error";
}
if (error>2 || error<0) return "Unknown error";
else return stl_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_FACEINDEX;
capability |= vcg::tri::io::Mask::IOM_FACECOLOR;
return capability;
}
}; // end class
} // end Namespace tri
} // end Namespace io
} // end Namespace vcg
#endif