Changed OpenMesh directory structure

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@106 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
2009-04-30 12:41:50 +00:00
parent 6b48ca6090
commit ea844d6788
310 changed files with 20 additions and 1 deletions

View File

@@ -0,0 +1,499 @@
//=============================================================================
//
// OpenMesh
// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//-----------------------------------------------------------------------------
//
// License
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, version 2.1.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//-----------------------------------------------------------------------------
//
// $Revision$
// $Date$
//
//=============================================================================
#if !defined(OM_USE_OSG)
# define OM_USE_OSG 0
#endif
// ----------------------------------------------------------------------------
#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <memory>
#include <map>
//--------------------
#include <OpenMesh/Core/IO/MeshIO.hh>
//--------------------
#if OM_USE_OSG
# include <OpenMesh/Tools/Kernel_OSG/TriMesh_OSGArrayKernelT.hh>
#else
# include <OpenMesh/Core/Mesh/TriMesh_ArrayKernelT.hh>
#endif
#include <OpenMesh/Core/Utils/vector_cast.hh>
//--------------------
#include <OpenMesh/Tools/Utils/getopt.h>
#include <OpenMesh/Tools/Utils/Timer.hh>
#include <OpenMesh/Tools/Decimater/DecimaterT.hh>
#include <OpenMesh/Tools/Decimater/ModNormalFlippingT.hh>
#include <OpenMesh/Tools/Decimater/ModQuadricT.hh>
#include <OpenMesh/Tools/Decimater/ModProgMeshT.hh>
#include <OpenMesh/Tools/Decimater/ModIndependentSetsT.hh>
#include <OpenMesh/Tools/Decimater/ModRoundnessT.hh>
//----------------------------------------------------------------- traits ----
#if OM_USE_OSG
typedef OpenMesh::Kernel_OSG::Traits MyTraits;
#else
typedef OpenMesh::DefaultTraits MyTraits;
#endif
//------------------------------------------------------------------- mesh ----
#if OM_USE_OSG
typedef OpenMesh::Kernel_OSG::TriMesh_OSGArrayKernelT<MyTraits> ArrayTriMesh;
#else
typedef OpenMesh::TriMesh_ArrayKernelT<MyTraits> ArrayTriMesh;
#endif
//-------------------------------------------------------------- decimator ----
typedef OpenMesh::Decimater::DecimaterT<ArrayTriMesh> Decimater;
//---------------------------------------------------------------- globals ----
int gverbose = 0;
int gdebug = 0;
//--------------------------------------------------------------- forwards ----
void usage_and_exit(int xcode);
//--------------------------------------------------- decimater arguments ----
#include "CmdOption.hh"
struct DecOptions
{
DecOptions()
: n_collapses(0)
{ }
CmdOption<bool> decorate_name;
CmdOption<float> n_collapses;
CmdOption<float> Q; // Quadrics
CmdOption<float> NF; // Normal Flipping
CmdOption<bool> IS; // Independent Sets
CmdOption<std::string> PM; // Progressive Mesh
CmdOption<float> R; // Roundness
template <typename T>
bool init( CmdOption<T>& _o, const std::string& _val )
{
if ( _val.empty() )
_o.enable();
else
{
std::istringstream istr( _val );
T v;
if ( (istr >> v).fail() )
return false;
_o = v;
}
return true;
}
bool parse_argument( const std::string& arg )
{
std::string::size_type pos = arg.find(':');
std::string name;
std::string value;
if (pos == std::string::npos)
name = arg;
else
{
name = arg.substr(0, pos);
value = arg.substr(pos+1, arg.size());
}
strip(name);
strip(value);
if (name == "Q") return init(Q, value);
if (name == "NF") return init(NF, value);
if (name == "PM") return init(PM, value);
if (name == "IS") return init(IS, value);
if (name == "R") return init(R, value);
return false;
}
std::string& strip(std::string & line)
{
std::string::size_type pos = 0;
pos = line.find_last_not_of(" \t");
if ( pos!=0 && pos!=std::string::npos )
{
++pos;
line.erase( pos, line.length()-pos );
}
pos = line.find_first_not_of(" \t");
if ( pos!=0 && pos!=std::string::npos )
{
line.erase(0,pos);
}
return line;
}
};
//----------------------------------------------------- decimater wrapper ----
//
template <typename Mesh, typename Decimater>
bool
decimate(const std::string &_ifname,
const std::string &_ofname,
DecOptions &_opt)
{
using namespace std;
Mesh mesh;
OpenMesh::IO::Options opt;
OpenMesh::Utils::Timer timer;
// ---------------------------------------- read source mesh
{
if (gverbose)
clog << "source mesh: ";
bool rc;
if (gverbose)
clog << _ifname << endl;
if ( !(rc = OpenMesh::IO::read_mesh(mesh, _ifname, opt)) )
{
cerr << " ERROR: read failed!" << endl;
return rc;
}
}
// ---------------------------------------- do some decimation
{
// ---- 0 - For module NormalFlipping one needs face normals
if ( !opt.check( OpenMesh::IO::Options::FaceNormal ) )
{
if ( !mesh.has_face_normals() )
mesh.request_face_normals();
if (gverbose)
clog << " updating face normals" << endl;
mesh.update_face_normals();
}
// ---- 1 - create decimater instance
Decimater decimater( mesh );
// ---- 2 - registrate modules
if (gverbose)
clog << " registrate modules" << endl;
typename OpenMesh::Decimater::ModQuadricT<Decimater>::Handle modQ;
if (_opt.Q.is_enabled())
{
decimater.add(modQ);
if (_opt.Q.has_value())
decimater.module( modQ ).set_max_err( _opt.Q );
}
typename OpenMesh::Decimater::ModNormalFlippingT<Decimater>::Handle modNF;
if (_opt.NF.is_enabled())
{
decimater.add(modNF);
if (_opt.NF.has_value())
decimater.module( modNF ).set_normal_deviation( _opt.NF );
}
typename OpenMesh::Decimater::ModProgMeshT<Decimater>::Handle modPM;
if ( _opt.PM.is_enabled() )
decimater.add(modPM);
typename OpenMesh::Decimater::ModIndependentSetsT<Decimater>::Handle modIS;
if ( _opt.IS.is_enabled() )
decimater.add(modIS);
typename OpenMesh::Decimater::ModRoundnessT<Decimater>::Handle modR;
if ( _opt.R.is_enabled() )
{
decimater.add( modR );
if ( _opt.R.has_value() )
decimater.module( modR ).set_min_angle( _opt.R,
!modQ.is_valid() ||
!decimater.module(modQ).is_binary());
}
// ---- 3 - initialize decimater
if (gverbose)
clog << "initializing mesh" << endl;
{
bool rc;
timer.start();
rc = decimater.initialize();
timer.stop();
if (!rc)
{
std::cerr << " initializing failed!" << std::endl;
return false;
}
}
if (gverbose)
std::clog << " Elapsed time: " << timer.as_string() << std::endl;
if (gverbose)
decimater.info( clog );
// ---- 4 - do it
if (gverbose)
{
std::clog << "decimating" << std::endl;
std::clog << " # vertices: " << mesh.n_vertices() << std::endl;
}
float nv_before = float(mesh.n_vertices());
timer.start();
int rc = 0;
if (_opt.n_collapses < 0.0)
rc = decimater.decimate_to( size_t(-_opt.n_collapses) );
else if (_opt.n_collapses >= 1.0 || _opt.n_collapses == 0.0)
rc = decimater.decimate( size_t(_opt.n_collapses) );
else if (_opt.n_collapses > 0.0f)
rc = decimater.decimate_to(size_t(mesh.n_vertices()*_opt.n_collapses));
timer.stop();
// ---- 5 - write progmesh file for progviewer (before garbage collection!)
if ( _opt.PM.has_value() )
decimater.module(modPM).write( _opt.PM );
// ---- 6 - throw away all tagged edges
mesh.garbage_collection();
if (gverbose)
{
std::clog << " # executed collapses: " << rc << std::endl;
std::clog << " # vertices: " << mesh.n_vertices() << ", "
<< ( 100.0*mesh.n_vertices()/nv_before ) << "%\n";
std::clog << " Elapsed time: " << timer.as_string() << std::endl;
std::clog << " collapses/s : " << rc/timer.seconds() << std::endl;
}
}
// write resulting mesh
if ( ! _ofname.empty() )
{
std::string ofname(_ofname);
std::string::size_type pos = ofname.rfind('.');
if (pos == std::string::npos)
{
ofname += ".off";
pos = ofname.rfind('.');
}
if ( _opt.decorate_name.is_enabled() )
{
std::stringstream s; s << mesh.n_vertices();
std::string n; s >> n;
ofname.insert( pos, "-");
ofname.insert(++pos, n );
}
OpenMesh::IO::Options opt;
//opt += OpenMesh::IO::Options::Binary;
if ( !OpenMesh::IO::write_mesh(mesh, ofname, opt ) )
{
std::cerr << " Cannot write decimated mesh to file '"
<< ofname << "'\n";
return false;
}
std::clog << " Exported decimated mesh to file '" << ofname << "'\n";
}
return true;
}
//------------------------------------------------------------------ main -----
int main(int argc, char* argv[])
{
std::string ifname, ofname;
DecOptions opt;
//
#if OM_USE_OSG
osg::osgInit( argc, argv );
#endif
//---------------------------------------- parse command line
{
int c;
while ( (c=getopt( argc, argv, "dDhi:M:n:o:v")) != -1 )
{
switch (c)
{
case 'D': opt.decorate_name = true; break;
case 'd': gdebug = true; break;
case 'h': usage_and_exit(0);
case 'i': ifname = optarg; break;
case 'M': opt.parse_argument( optarg ); break;
case 'n': opt.n_collapses = float(atof(optarg)); break;
case 'o': ofname = optarg; break;
case 'v': gverbose = true; break;
case '?':
default:
std::cerr << "FATAL: cannot process command line option!"
<< std::endl;
exit(-1);
}
}
}
//----------------------------------------
if ( (-1.0f < opt.n_collapses) && (opt.n_collapses < 0.0f) )
{
std::cerr << "Error: Option -n: invalid value argument!" << std::endl;
usage_and_exit(2);
}
//----------------------------------------
if (gverbose)
{
std::clog << " Input file: " << ifname << std::endl;
std::clog << " Output file: " << ofname << std::endl;
std::clog << " #collapses: " << opt.n_collapses << std::endl;
}
//----------------------------------------
if (gverbose)
{
std::clog << "Begin decimation" << std::endl;
}
bool rc = decimate<ArrayTriMesh, Decimater>( ifname, ofname, opt );
if (gverbose)
{
if (!rc)
std::clog << "Decimation failed!" << std::endl;
else
std::clog << "Decimation done." << std::endl;
}
//----------------------------------------
return 0;
}
//-----------------------------------------------------------------------------
void usage_and_exit(int xcode)
{
std::string errmsg;
switch(xcode)
{
case 1: errmsg = "Option not supported!"; break;
case 2: errmsg = "Invalid output file format!"; break;
}
std::cerr << std::endl;
if (xcode)
{
std::cerr << "Error " << xcode << ": " << errmsg << std::endl << std::endl;
}
std::cerr << "Usage: decimator [Options] -i input-file -o output-file\n"
<< " Decimating a mesh using quadrics and normal flipping.\n"
<< std::endl;
std::cerr << "Options\n"
<< std::endl;
std::cerr << " -M \"{Module-Name}[:Value]}\"\n"
<< " Use named module with eventually given parameterization\n"
<< std::endl;
std::cerr << " -n <N>\n"
<< " N >= 1: do N halfedge collapses.\n"
<< " N <=-1: decimate down to |N| vertices.\n"
<< " 0 < N < 1: decimate down to N%.\n"
<< std::endl;
std::cerr << std::endl;
std::cerr << "Modules:\n\n";
std::cerr << " IS - ModIndependentSets\n";
std::cerr << " NF[:angle] - ModNormalFlipping\n";
std::cerr << " PM[:file name] - ModProgMesh\n";
std::cerr << " Q[:error] - ModQuadric\n";
std::cerr << " R[:angle] - ModRoundness\n";
std::cerr << " 0 < angle < 60\n";
exit( xcode );
}
// end of file
//=============================================================================