TCTFauxOptimizer Class Reference

Inheritance diagram for TCTFauxOptimizer:

Collaboration diagram for TCTFauxOptimizer:

Public Member Functions
	TCTFauxOptimizer (double pertubation_amount)
virtual	~TCTFauxOptimizer ()
virtual std::string	get_name () const
	Get string name for use in diagnostic and status output.
virtual PatchSet *	get_patch_set ()
virtual void	initialize (PatchData &pd, MsqError &err)
virtual void	initialize_mesh_iteration (PatchData &pd, MsqError &err)
virtual void	optimize_vertex_positions (PatchData &pd, MsqError &err)
virtual void	terminate_mesh_iteration (PatchData &pd, MsqError &err)
virtual void	cleanup ()
int	num_passes () const
bool	should_have_terminated () const
Private Attributes
std::set< Mesh::VertexHandle >	culled
std::set< Mesh::VertexHandle >	visited
std::vector< Mesh::VertexHandle >	all
VertexPatches	mPatchSet
int	numPasses
	count number of outer iterations
int	perturbFrac
	perturb 1/perturbFrac of the free vertices
double	mDelta
	distance to perturb vertices

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Detailed Description

Definition at line 671 of file TerminationCriterionTest.cpp.

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Constructor & Destructor Documentation

TCTFauxOptimizer::TCTFauxOptimizer

(

double

pertubation_amount

)

[inline]

Definition at line 674 of file TerminationCriterionTest.cpp.

: mDelta( pertubation_amount ) {}

virtual TCTFauxOptimizer::~TCTFauxOptimizer

(

)

[inline, virtual]

Definition at line 675 of file TerminationCriterionTest.cpp.

{};

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Member Function Documentation

virtual void TCTFauxOptimizer::cleanup

(

)

[inline, virtual]

Implements MBMesquite::VertexMover.

Definition at line 688 of file TerminationCriterionTest.cpp.

    {
        all.clear();
    }

virtual std::string TCTFauxOptimizer::get_name

(

)

const [inline, virtual]

Get string name for use in diagnostic and status output.

Implements MBMesquite::Instruction.

Definition at line 676 of file TerminationCriterionTest.cpp.

    {
        return "Optimizer for TerminationCriterionTest";
    }

virtual PatchSet* TCTFauxOptimizer::get_patch_set

(

)

[inline, virtual]

Implements MBMesquite::QualityImprover.

Definition at line 680 of file TerminationCriterionTest.cpp.

    {
        return &mPatchSet;
    }

void TCTFauxOptimizer::initialize	(	PatchData &	pd,
		MsqError &	err
	)		[virtual]

Implements MBMesquite::VertexMover.

Definition at line 710 of file TerminationCriterionTest.cpp.

References CPPUNIT_ASSERT, fixed, MBMesquite::Mesh::get_all_vertices(), MBMesquite::PatchData::get_mesh(), MSQ_ERRRTN, and MBMesquite::Mesh::vertices_get_fixed_flag().

{
    CPPUNIT_ASSERT( all.empty() );
    culled.clear();
    visited.clear();
    numPasses = 1;

    pd.get_mesh()->get_all_vertices( all, err );MSQ_ERRRTN( err );
    std::vector< bool > fixed;
    pd.get_mesh()->vertices_get_fixed_flag( &all[0], fixed, all.size(), err );
    size_t w = 0;
    for( size_t r = 0; r < all.size(); ++r )
        if( !fixed[r] ) all[w++] = all[r];
    all.resize( w );MSQ_ERRRTN( err );

    perturbFrac = 1;
}

virtual void TCTFauxOptimizer::initialize_mesh_iteration	(	PatchData &	pd,
		MsqError &	err
	)		[inline, virtual]

Implements MBMesquite::VertexMover.

Definition at line 685 of file TerminationCriterionTest.cpp.

{}

int TCTFauxOptimizer::num_passes

(

)

const [inline]

Definition at line 692 of file TerminationCriterionTest.cpp.

Referenced by TerminationCriterionTest::test_abs_vtx_movement_culling().

    {
        return numPasses;
    }

void TCTFauxOptimizer::optimize_vertex_positions	(	PatchData &	pd,
		MsqError &	err
	)		[virtual]

Implements MBMesquite::VertexMover.

Definition at line 728 of file TerminationCriterionTest.cpp.

References ASSERT_NO_ERROR, CPPUNIT_ASSERT, MBMesquite::PatchData::get_vertex_handles_array(), MBMesquite::PatchData::move_vertex(), MBMesquite::PatchData::num_nodes(), and MBMesquite::sign.

{
    Mesh::VertexHandle free_vtx = pd.get_vertex_handles_array()[0];
    if( visited.insert( free_vtx ).second == false )
    {  // already visited this one
        // The inner termination criterion should include an iteration limit of 1.
        // So if we are seeing the same vertex again, this means that we *should*
        // be stating a new pass over the mesh.

        // We are presumably starting a new pass over the mesh.
        // Verify that we visisted all of the free, non-culled vertices
        for( size_t i = 0; i < all.size(); ++i )
        {
            if( culled.find( all[i] ) == culled.end() )
            {
                if( visited.find( all[i] ) == visited.end() )
                {
                    std::ostringstream str;
                    str << "Did not visit vertex " << i << " (handle " << all[i] << ") in pass " << numPasses
                        << std::endl;
                    CPPUNIT_FAIL( str.str() );
                }
            }
        }
        visited.clear();
        visited.insert( free_vtx );
        ++numPasses;

        // Check that we terminate when expected
        CPPUNIT_ASSERT( !should_have_terminated() );

        perturbFrac *= 2;  // for each pass, perturb half as many vertices
    }

    // check that we are not visiting a culled vertex
    CPPUNIT_ASSERT( culled.find( free_vtx ) == culled.end() );

    // for each pass, perturb half as many vertices
    size_t idx = std::find( all.begin(), all.end(), free_vtx ) - all.begin();
    CPPUNIT_ASSERT( idx < all.size() );  // not a free vertex????
    if( 0 == ( ( idx + 1 ) % perturbFrac ) )
    {
        // perturb vertex
        double sign = numPasses % 2 == 0 ? 1 : -1;
        Vector3D delta( sign * mDelta, 0, 0 );
        pd.move_vertex( delta, 0, err );
        ASSERT_NO_ERROR( err );
        // any adjacent vertices should not be culled
        for( size_t i = 0; i < pd.num_nodes(); ++i )
            culled.erase( pd.get_vertex_handles_array()[i] );
    }
    else
    {
        // If we're not moving this vertex, then it should get culled
        culled.insert( free_vtx );
    }
}

bool TCTFauxOptimizer::should_have_terminated

(

)

const [inline]

Definition at line 696 of file TerminationCriterionTest.cpp.

Referenced by TerminationCriterionTest::test_abs_vtx_movement_culling().

    {
        return perturbFrac > (int)all.size();
    }

virtual void TCTFauxOptimizer::terminate_mesh_iteration	(	PatchData &	pd,
		MsqError &	err
	)		[inline, virtual]

Implements MBMesquite::VertexMover.

Definition at line 687 of file TerminationCriterionTest.cpp.

{}

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Member Data Documentation

std::vector< Mesh::VertexHandle > TCTFauxOptimizer::all [private]

Definition at line 703 of file TerminationCriterionTest.cpp.

std::set< Mesh::VertexHandle > TCTFauxOptimizer::culled [private]

Definition at line 702 of file TerminationCriterionTest.cpp.

double TCTFauxOptimizer::mDelta [private]

distance to perturb vertices

Definition at line 707 of file TerminationCriterionTest.cpp.

VertexPatches TCTFauxOptimizer::mPatchSet [private]

Definition at line 704 of file TerminationCriterionTest.cpp.

int TCTFauxOptimizer::numPasses [private]

count number of outer iterations

Definition at line 705 of file TerminationCriterionTest.cpp.

int TCTFauxOptimizer::perturbFrac [private]

perturb 1/perturbFrac of the free vertices

Definition at line 706 of file TerminationCriterionTest.cpp.

std::set< Mesh::VertexHandle > TCTFauxOptimizer::visited [private]

Definition at line 702 of file TerminationCriterionTest.cpp.

List of all members.

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The documentation for this class was generated from the following file:

• TerminationCriterionTest.cpp