192 lines
6.6 KiB
C++
192 lines
6.6 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 1.8 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");
|
|
}
|
|
fclose(fp);
|
|
return 0;
|
|
}
|
|
static const char *ErrorMsg(int error)
|
|
{
|
|
static std::vector<std::string> stl_error_msg;
|
|
if(stl_error_msg.empty())
|
|
{
|
|
stl_error_msg.resize(2 );
|
|
stl_error_msg[0]="No errors";
|
|
stl_error_msg[1]="Can't open file";
|
|
}
|
|
|
|
if(error>1 || 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
|