vcglib/wrap/io_trimesh/import_smf.h

134 lines
4.3 KiB
C
Raw Normal View History

2006-11-16 12:24:44 +01:00
/****************************************************************************
* 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 $
2006-11-16 12:24:44 +01:00
****************************************************************************/
#ifndef __VCGLIB_IMPORTER_SMF
#define __VCGLIB_IMPORTER_SMF
#include <stdio.h>
#include <vcg/space/point3.h>
namespace vcg {
namespace tri {
namespace io {
2006-11-16 12:24:44 +01:00
template<class OpenMeshType>
2006-11-21 20:23:50 +01:00
/**
This class encapsulate a filter for opening smf meshes.
*/
2006-11-16 12:24:44 +01:00
class ImporterSMF
{
public:
typedef typename OpenMeshType::VertexPointer VertexPointer;
typedef typename OpenMeshType::ScalarType ScalarType;
typedef typename OpenMeshType::VertexType VertexType;
typedef typename OpenMeshType::FaceType FaceType;
typedef typename OpenMeshType::VertexIterator VertexIterator;
typedef typename OpenMeshType::FaceIterator FaceIterator;
// if it is binary there are 80 char of comment, the number fn of faces and then exactly fn*4*3 bytes.
enum {SMF_LABEL_SIZE=80};
class SMFFacet
{
public:
vcg::Point3f n;
vcg::Point3f v[3];
};
enum SMFError {
E_NOERROR, // 0
// Errori di open
E_CANTOPEN, // 1
E_UNESPECTEDEOF // 2
};
2006-11-21 20:23:50 +01:00
/// Standard call for knowing the meaning of an error code
2006-11-16 12:24:44 +01:00
static const char *ErrorMsg(int error)
{
static const char * smf_error_msg[] =
{
"No errors",
"Can't open file",
"Premature End of file",
};
if(error>2 || error<0) return "Unknown error";
else return smf_error_msg[error];
};
2006-11-21 20:23:50 +01:00
///Standard call for reading a mesh
2006-11-16 12:24:44 +01:00
static int Open(OpenMeshType &m, const char * filename )
{
VertexType v;
FaceType f;
FILE *fp;
float x,y,z;
bool one = true;
std::map<int,VertexPointer> mv;
fp = fopen(filename,"r");
if(!fp) return -1;
char buf[1024];
while( fgets(buf,1024,fp) )
{
char *vf, *comm_pt;
if((comm_pt = strstr(buf,"#")) != NULL)
*comm_pt = '\0';
if( (vf = strstr(buf,"v")) != NULL )
{
sscanf(vf+1,"%f %f %f", &x, &y, &z);
v.P()[0] = x;
v.P()[1] = y;
v.P()[2] = z;
m.vert.push_back(v);
}
else if( (vf = strstr(buf,"f")) != NULL)
{
if(one)
{
VertexIterator vi;
int ind;
for(ind=1,vi=m.vert.begin(); vi!=m.vert.end(); ++vi,++ind)
mv[ind]=&*vi;
one = false;
}
int v1,v2,v3;
sscanf(vf+1,"%d %d %d", &v1, &v2, &v3);
f.V(0) = mv[v1];
f.V(1) = mv[v2];
f.V(2) = mv[v3];
m.face.push_back(f);
}
}
m.vn = m.vert.size();
m.fn = m.face.size();
return 0;
}
};
}// end of io
}// end of tri
}// end of vcg
#endif