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158 | /* *****************************************************************
MESQUITE -- The Mesh Quality Improvement Toolkit
Copyright 2004 Sandia Corporation and Argonne National
Laboratory. Under the terms of Contract DE-AC04-94AL85000
with Sandia Corporation, the U.S. Government retains certain
rights in this software.
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; either
version 2.1 of the License, or (at your option) any later version.
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
(lgpl.txt) along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
[email protected], [email protected], [email protected],
[email protected], [email protected], [email protected]
***************************************************************** */
//
// SUMMARY:
// USAGE:
//
// ORIG-DATE: 19-Feb-02 at 10:57:52
// LAST-MOD: 18-Oct-04 by J.Kraftcheck
//
//
// DESCRIPTION:
// ============
/*! \file main.cpp
describe main.cpp here
*/
// DESCRIP-END.
//
#include <iostream>
using std::cerr;
using std::cout;
using std::endl;
#include <cstdlib>
#include "Mesquite.hpp"
#include "MeshImpl.hpp"
#include "MsqError.hpp"
#include "InstructionQueue.hpp"
#include "TerminationCriterion.hpp"
#include "QualityAssessor.hpp"
// algorithms
#include "IdealWeightInverseMeanRatio.hpp"
#include "EdgeLengthQualityMetric.hpp"
#include "LPtoPTemplate.hpp"
#include "FeasibleNewton.hpp"
#include "ConjugateGradient.hpp"
#include "TestUtil.hpp"
using namespace MBMesquite;
void usage()
{
cerr << "Usage: main [filename] [objective function val]" << endl;
exit( 1 );
}
int main( int argc, char* argv[] )
{
MBMesquite::MsqPrintError err( cout );
std::string file_name = TestDir + "unittest/mesquite/3D/vtk/hexes/untangled/large_box_hex_1000.vtk";
double OF_value = 0.;
if( argc == 1 )
{
cerr << "Warning: No file specified, using default: " << file_name << endl;
}
if( argc > 1 )
{
file_name = argv[1];
}
if( argc > 2 )
{
char* end_ptr;
OF_value = strtod( argv[2], &end_ptr );
if( !*argv[2] || *end_ptr ) usage();
}
if( argc > 3 )
{
usage();
}
MBMesquite::MeshImpl mesh;
mesh.read_vtk( file_name.c_str(), err );
if( err ) return 1;
// creates an intruction queue
InstructionQueue queue1;
// creates a mean ratio quality metric ...
// SmoothnessQualityMetric* mean_ratio = new EdgeLengthQualityMetric;
IdealWeightInverseMeanRatio mean_ratio( err );
if( err ) return 1;
// mean_ratio->set_gradient_type(QualityMetric::NUMERICAL_GRADIENT);
// mean_ratio->set_hessian_type(QualityMetric::NUMERICAL_HESSIAN);
mean_ratio.set_averaging_method( QualityMetric::SUM );
// ... and builds an objective function with it
LPtoPTemplate obj_func( &mean_ratio, 1, err );
if( err ) return 1;<--- If condition 'err' is true, the function will return/exit
// creates the steepest descentfeas newt optimization procedures
// ConjugateGradient* pass1 = new ConjugateGradient( obj_func, err );
FeasibleNewton pass1( &obj_func );
pass1.use_global_patch();
if( err ) return 1;<--- Testing identical condition 'err'
QualityAssessor stop_qa = QualityAssessor( &mean_ratio );
// **************Set stopping criterion****************
TerminationCriterion tc_inner;
if( OF_value != 0 )
{
tc_inner.add_absolute_quality_improvement( OF_value );
pass1.set_inner_termination_criterion( &tc_inner );
}
TerminationCriterion tc_outer;
tc_outer.add_iteration_limit( 1 );
pass1.set_outer_termination_criterion( &tc_outer );
queue1.add_quality_assessor( &stop_qa, err );
if( err ) return 1;
// adds 1 pass of pass1 to mesh_set1
queue1.set_master_quality_improver( &pass1, err );
if( err ) return 1;
queue1.add_quality_assessor( &stop_qa, err );
if( err ) return 1;
// mesh.write_vtk("original_mesh",err); MSQ_CHKERR(err);
// launches optimization on mesh_set1
queue1.run_instructions( &mesh, err );
if( err ) return 1;
// mesh.write_vtk("smoothed_mesh", err); MSQ_CHKERR(err);
print_timing_diagnostics( cout );
return 0;
}
|