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186 | #include "Randomize.hpp"
#include "InstructionQueue.hpp"
#include "QualityAssessor.hpp"
#include "MeshImpl.hpp"
#include "PatchData.hpp"
#include "MsqVertex.hpp"
#include "IdealWeightInverseMeanRatio.hpp"
#include "PMeanPTemplate.hpp"
#include "TerminationCriterion.hpp"
#include <cassert>
#include "domain.hpp"
#include <iostream>
#include <iomanip>
#include <memory>
#include <cstdio>
#include <cstring>
#include <cctype>
#include <cstdlib>
using namespace MBMesquite;
const char INVALID_FLAG = 'i';
const char PERCENT_FLAG = 'p';
const char UNOPTIMIZE_FLAG = 'u';
class UnOptimizer : public VertexMover
{
public:
UnOptimizer( ObjectiveFunction* of ) : objectiveFunction( of ) {}<--- Class 'UnOptimizer' has a constructor with 1 argument that is not explicit. [+]Class 'UnOptimizer' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
virtual ~UnOptimizer() {}
virtual std::string get_name() const;
virtual PatchSet* get_patch_set();
protected:
virtual void initialize( PatchData& pd, MsqError& err );
virtual void optimize_vertex_positions( PatchData& pd, MsqError& err );
virtual void initialize_mesh_iteration( PatchData& pd, MsqError& err );
virtual void terminate_mesh_iteration( PatchData& pd, MsqError& err );
virtual void cleanup();
private:
std::vector< size_t > adjVtxList;
VertexPatches patchSet;
ObjectiveFunction* objectiveFunction;
};
std::string UnOptimizer::get_name() const
{
return "UnOptimize";
}
PatchSet* UnOptimizer::get_patch_set()
{
return &patchSet;
}
void UnOptimizer::initialize( PatchData&, MsqError& ) {}
void UnOptimizer::initialize_mesh_iteration( PatchData&, MsqError& ) {}
void UnOptimizer::terminate_mesh_iteration( PatchData&, MsqError& ) {}
void UnOptimizer::cleanup() {}
void UnOptimizer::optimize_vertex_positions( PatchData& pd, MsqError& err )
{
assert( pd.num_free_vertices() == 1 && pd.vertex_by_index( 0 ).is_free_vertex() );
std::vector< Vector3D > grad( 1 );
double val, junk, coeff;
bool state;
state = objectiveFunction->evaluate_with_gradient( ObjectiveFunction::CALCULATE, pd, val, grad, err );MSQ_ERRRTN( err );
if( !state )
{
MSQ_SETERR( err )( MsqError::INVALID_MESH );
return;
}
grad[0] /= grad[0].length();
PatchDataVerticesMemento* memento = pd.create_vertices_memento( err );MSQ_ERRRTN( err );
std::unique_ptr< PatchDataVerticesMemento > deleter( memento );
pd.get_minmax_edge_length( junk, coeff );
for( int i = 0; i < 100; ++i )
{
pd.set_free_vertices_constrained( memento, arrptr( grad ), 1, coeff, err );MSQ_ERRRTN( err );
state = objectiveFunction->evaluate( ObjectiveFunction::CALCULATE, pd, val, true, err );MSQ_ERRRTN( err );
if( state ) break;
coeff *= 0.5;
}
if( !state )
{
pd.set_to_vertices_memento( memento, err );
}
}
int main( int argc, char* argv[] )
{
const double default_fraction = 0.05;
const double zero = 0.0;
int one = 1;
CLArgs::ToggleArg allow_invalid( false );
CLArgs::DoubleRangeArg rand_percent( default_fraction, &zero, 0 );
CLArgs::IntRangeArg unoptimize( 0, &one, 0 );
CLArgs args( "vtkrandom", "Randomize mesh vertex locations.",
"Read VTK file, randomize locations of containded vertices, and re-write file." );
args.toggle_flag( INVALID_FLAG, "Allow inverted elements in output", &allow_invalid );
args.double_flag( PERCENT_FLAG, "fract", "Randomize fraction", &rand_percent );
args.int_flag( UNOPTIMIZE_FLAG, "N", "Use UnOptimizer with N passes rather than Randomize", &unoptimize );
add_domain_args( args );
args.add_required_arg( "input_file" );
args.add_required_arg( "output_file" );
std::vector< std::string > files;
if( !args.parse_options( argc, argv, files, std::cerr ) )
{
args.print_usage( std::cerr );
exit( 1 );
}
std::string input_file = files[0];
std::string output_file = files[1];
MsqError err;
MeshImpl mesh;
mesh.read_vtk( input_file.c_str(), err );
if( err )
{
std::cerr << "ERROR READING FILE: " << input_file << std::endl << err << std::endl;
return 2;
}
MeshDomain* domain = process_domain_args( &mesh );
TerminationCriterion tc;
QualityAssessor qa( false );
InstructionQueue q;
Randomize op( rand_percent.value() );
IdealWeightInverseMeanRatio metric;
PMeanPTemplate of( 1, &metric );
UnOptimizer op2( &of );
if( unoptimize.seen() )
{
tc.add_iteration_limit( unoptimize.value() );
op2.set_outer_termination_criterion( &tc );
q.add_preconditioner( &op, err );
q.set_master_quality_improver( &op2, err );
}
else
{
q.set_master_quality_improver( &op, err );
}
q.add_quality_assessor( &qa, err );
MeshDomainAssoc mesh_and_domain = MeshDomainAssoc( &mesh, domain );
q.run_instructions( &mesh_and_domain, err );
if( err )
{
std::cerr << err << std::endl;
return 3;
}
int inverted, junk;
if( qa.get_inverted_element_count( inverted, junk, err ) && inverted )
{
if( allow_invalid.value() )
std::cerr << "Warning: output mesh contains " << inverted << " inverted elements" << std::endl;
else
{
std::cerr << "Error: output mesh contains " << inverted << " inverted elements" << std::endl;
return 4;
}
}
mesh.write_vtk( output_file.c_str(), err );
if( err )
{
std::cerr << "ERROR WRITING FILE: " << output_file << std::endl << err << std::endl;
return 2;
}
return 0;
}
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