activeset_test.cpp

Go to the documentation of this file.

/* *****************************************************************
    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]

  ***************************************************************** */
// -*- Mode : c++; tab-width: 3; c-tab-always-indent: t; indent-tabs-mode: nil; c-basic-offset: 3
// -*-
//
//   SUMMARY:
//     USAGE:
//
// ORIG-DATE: 19-Feb-02 at 10:57:52
//  LAST-MOD: 23-Jul-03 at 18:10:35 by Thomas Leurent
//
//
// DESCRIPTION:
// ============
/*! \file main.cpp

describe main.cpp here

 */
// DESCRIP-END.
//

#include <iostream>
using std::cout;
using std::endl;
#include <cstdlib>

#include "Mesquite.hpp"
#include "MeshImpl.hpp"
#include "MsqError.hpp"
#include "Vector3D.hpp"
#include "InstructionQueue.hpp"
#include "PatchData.hpp"
#include "TerminationCriterion.hpp"
#include "QualityAssessor.hpp"

// algorithms
#include "ConditionNumberQualityMetric.hpp"
#include "NonSmoothDescent.hpp"

#include "MeshImpl.hpp"
#include "TestUtil.hpp"
using namespace MBMesquite;

int main()
{
    /* Reads a Mesh file */
    std::string file_name = TestDir +
                            //   "unittest/mesquite/2D/vtk/tris/untangled/equil_tri2.vtk";
                            //   "unittest/mesquite/2D/vtk/tris/untangled/tri_20258.vtk";
                            //   "unittest/mesquite/3D/vtk/tets/untangled/tet_1.vtk";
                            //   "unittest/mesquite/3D/vtk/hexes/untangled/cube_tet_2.vtk";
                            "unittest/mesquite/3D/vtk/tets/untangled/tire.vtk";
    printf( "Loading mesh set 1\n" );
    MsqPrintError err( cout );
    MBMesquite::MeshImpl mesh;
    mesh.read_vtk( file_name.c_str(), err );
    if( err ) return 1;

    // Creates an intruction queue
    //  printf("Creating instruction queue\n");
    InstructionQueue queue1;

    // Creates a condition number quality metric
    //  printf("Creating quality metric\n");
    ConditionNumberQualityMetric cond_no;

    // Create the NonSmooth Steepest Descent procedures
    //  printf("creating optimizer\n");
    NonSmoothDescent minmax_method( &cond_no );

    // Set a termination criterion
    TerminationCriterion tc2;
    tc2.add_iteration_limit( 1 );
    minmax_method.set_outer_termination_criterion( &tc2 );
    // Set up the quality assessor
    //  printf("Setting up the quality assessor\n");
    QualityAssessor quality_assessor = QualityAssessor( &cond_no );

    // assess the quality of the initial mesh
    queue1.add_quality_assessor( &quality_assessor, err );
    if( err ) return 1;

    // Set the max min method to be the master quality improver
    queue1.set_master_quality_improver( &minmax_method, err );
    if( err ) return 1;

    // assess the quality of the final mesh
    queue1.add_quality_assessor( &quality_assessor, err );
    if( err ) return 1;

    // write out the original mesh
    //  printf("Writing out the original mesh\n");
    mesh.write_vtk( "original_mesh.vtk", err );
    if( err ) return 1;

    // launches optimization on mesh_set1
    //  printf("Running the instruction queue\n");
    queue1.run_instructions( &mesh, err );
    if( err ) return 1;

    // write out the smoothed mesh
    //  printf("Writing out the final mesh\n");
    mesh.write_vtk( "smoothed_mesh.vtk", err );
    if( err ) return 1;

    return 0;
}