This hypothesis specifies length of segments adjacent to the vertex the hypothesis is assigned to. More...

#include <StdMeshers_SegmentLengthAroundVertex.hxx>

Inheritance diagram for StdMeshers_SegmentLengthAroundVertex:

Public Types
enum	Hypothesis_Status { HYP_OK = 0, HYP_MISSING, HYP_CONCURENT, HYP_BAD_PARAMETER, HYP_HIDDEN_ALGO, HYP_HIDING_ALGO, HYP_UNKNOWN_FATAL, HYP_INCOMPATIBLE, HYP_NOTCONFORM, HYP_ALREADY_EXIST, HYP_BAD_DIM, HYP_BAD_SUBSHAPE, HYP_BAD_GEOMETRY, HYP_NEED_SHAPE }
enum	hypothesis_type { PARAM_ALGO, ALGO_0D, ALGO_1D, ALGO_2D, ALGO_3D }
Public Member Functions
	StdMeshers_SegmentLengthAroundVertex (int hypId, int studyId, SMESH_Gen *gen)
virtual	~StdMeshers_SegmentLengthAroundVertex ()
void	SetLength (double length) throw (SALOME_Exception)
double	GetLength () const
virtual std::ostream &	SaveTo (std::ostream &save)
virtual std::istream &	LoadFrom (std::istream &load)
virtual bool	SetParametersByMesh (const SMESH_Mesh *theMesh, const TopoDS_Shape &theShape)
	Initialize segment length by the mesh built on the geometry.
virtual bool	SetParametersByDefaults (const TDefaults &dflts, const SMESH_Mesh *theMesh=0)
	Initialize my parameter values by default parameters.
virtual int	GetDim () const
int	GetStudyId () const
virtual void	NotifySubMeshesHypothesisModification ()
virtual int	GetShapeType () const
virtual const char *	GetLibName () const
void	SetLibName (const char *theLibName)
void	SetParameters (const char *theParameters)
char *	GetParameters () const
void	SetLastParameters (const char *theParameters)
char *	GetLastParameters () const
void	ClearParameters ()
virtual bool	IsAuxiliary () const
	Return true if me is an auxiliary hypothesis.
SMESH_Mesh *	GetMeshByPersistentID (int id)
	Find a mesh with given persistent ID.
const char *	GetName () const
int	GetID () const
int	GetType () const
virtual bool	operator== (const SMESHDS_Hypothesis &other) const
	Equality.
bool	operator!= (const SMESHDS_Hypothesis &other) const
Static Public Member Functions
static bool	IsStatusFatal (Hypothesis_Status theStatus)
Protected Attributes
double	_length
SMESH_Gen *	_gen
int	_studyId
int	_shapeType
int	_param_algo_dim
std::string	_name
int	_hypId
int	_type
Friends
std::ostream &	operator<< (std::ostream &save, StdMeshers_SegmentLengthAroundVertex &hyp)
std::istream &	operator>> (std::istream &load, StdMeshers_SegmentLengthAroundVertex &hyp)

Detailed Description

This hypothesis specifies length of segments adjacent to the vertex the hypothesis is assigned to.

Definition at line 40 of file StdMeshers_SegmentLengthAroundVertex.hxx.

Member Enumeration Documentation

enum SMESH_Hypothesis::Hypothesis_Status [inherited]

Enumerator:

HYP_OK
HYP_MISSING
HYP_CONCURENT
HYP_BAD_PARAMETER
HYP_HIDDEN_ALGO
HYP_HIDING_ALGO
HYP_UNKNOWN_FATAL
HYP_INCOMPATIBLE
HYP_NOTCONFORM
HYP_ALREADY_EXIST
HYP_BAD_DIM
HYP_BAD_SUBSHAPE
HYP_BAD_GEOMETRY
HYP_NEED_SHAPE

Definition at line 50 of file SMESH_Hypothesis.hxx.

  {
    HYP_OK = 0,
    HYP_MISSING,      // algo misses a hypothesis
    HYP_CONCURENT,    // several applicable hypotheses
    HYP_BAD_PARAMETER,// hypothesis has a bad parameter value
    HYP_HIDDEN_ALGO,  // an algo is hidden by an upper dim algo generating all-dim elements
    HYP_HIDING_ALGO,  // an algo hides lower dim algos by generating all-dim elements
    HYP_UNKNOWN_FATAL,//  --- all statuses below should be considered as fatal
                      //      for Add/RemoveHypothesis operations
    HYP_INCOMPATIBLE, // hypothesis does not fit algo
    HYP_NOTCONFORM,   // not conform mesh is produced appling a hypothesis
    HYP_ALREADY_EXIST,// such hypothesis already exist
    HYP_BAD_DIM,      // bad dimension
    HYP_BAD_SUBSHAPE, // shape is neither the main one, nor its subshape, nor a group
    HYP_BAD_GEOMETRY, // shape geometry mismatches algorithm's expectation
    HYP_NEED_SHAPE    // algorithm can work on shape only
  };

enum SMESHDS_Hypothesis::hypothesis_type [inherited]

Enumerator:

PARAM_ALGO
ALGO_0D
ALGO_1D
ALGO_2D
ALGO_3D

Definition at line 53 of file SMESHDS_Hypothesis.hxx.

{PARAM_ALGO, ALGO_0D, ALGO_1D, ALGO_2D, ALGO_3D};

Constructor & Destructor Documentation

StdMeshers_SegmentLengthAroundVertex::StdMeshers_SegmentLengthAroundVertex	(	int	hypId,
		int	studyId,
		SMESH_Gen *	gen
	)

Definition at line 53 of file StdMeshers_SegmentLengthAroundVertex.cxx.

  :SMESH_Hypothesis(hypId, studyId, gen)
{
  _length = 1.;
  _name = "SegmentLengthAroundVertex";
  _param_algo_dim = 0; // is used by StdMeshers_SegmentAroundVertex_0D
}

StdMeshers_SegmentLengthAroundVertex::~StdMeshers_SegmentLengthAroundVertex ( ) [virtual]

Definition at line 67 of file StdMeshers_SegmentLengthAroundVertex.cxx.

{
}

Member Function Documentation

void SMESH_Hypothesis.ClearParameters ( ) [inherited]

int SMESH_Hypothesis::GetDim ( ) const [virtual, inherited]

Definition at line 74 of file SMESH_Hypothesis.cxx.

{
  int dim = 0;
  switch (_type)
    {
    case ALGO_1D: dim = 1; break;
    case ALGO_2D: dim = 2; break;
    case ALGO_3D: dim = 3; break;
    case PARAM_ALGO:
      dim = ( _param_algo_dim < 0 ) ? -_param_algo_dim : _param_algo_dim; break;
    }
  return dim;
}

int SMESHDS_Hypothesis::GetID ( ) const [inherited]

Definition at line 73 of file SMESHDS_Hypothesis.cxx.

Referenced by SMESHDS_Document.AddHypothesis(), and SMESH_Mesh_i.GetHypothesisList().

{
  return _hypId;
}

char* SMESH_Hypothesis.GetLastParameters ( ) const [inherited]

double StdMeshers_SegmentLengthAroundVertex::GetLength ( ) const

Definition at line 93 of file StdMeshers_SegmentLengthAroundVertex.cxx.

{
  return _length;
}

virtual const char* SMESH_Hypothesis.GetLibName ( ) const [virtual, inherited]

SMESH_Mesh * SMESH_Hypothesis::GetMeshByPersistentID ( int id ) [inherited]

Find a mesh with given persistent ID.

Definition at line 160 of file SMESH_Hypothesis.cxx.

References studyContextStruct.mapMesh, and PAL_MESH_041_mesh.mesh.

{
  StudyContextStruct* myStudyContext = _gen->GetStudyContext(_studyId);
  map<int, SMESH_Mesh*>::iterator itm = itm = myStudyContext->mapMesh.begin();
  for ( ; itm != myStudyContext->mapMesh.end(); itm++)
  {
    SMESH_Mesh* mesh = (*itm).second;
    if ( mesh->GetMeshDS()->GetPersistentId() == id )
      return mesh;
  }
  return 0;
}

const char * SMESHDS_Hypothesis::GetName ( ) const [inherited]

Definition at line 62 of file SMESHDS_Hypothesis.cxx.

Referenced by SMESH_DimHyp.checkAlgo(), StdMeshers_Quadrangle_2D.CheckHypothesis(), and StdMeshers_Projection_3D.CheckHypothesis().

{
  return _name.c_str();
}

char* SMESH_Hypothesis.GetParameters ( ) const [inherited]

int SMESH_Hypothesis::GetShapeType ( ) const [virtual, inherited]

Definition at line 94 of file SMESH_Hypothesis.cxx.

{
  return _shapeType;
}

int SMESH_Hypothesis.GetStudyId ( ) const [inherited]

int SMESHDS_Hypothesis::GetType ( ) const [inherited]

Definition at line 84 of file SMESHDS_Hypothesis.cxx.

Referenced by SMESH_DimHyp.checkAlgo(), checkConformIgnoredAlgos(), SMESH_Hypothesis.IsAuxiliary(), and SMESH_Mesh.IsUsedHypothesis().

{
  return _type;
}

virtual bool SMESH_Hypothesis.IsAuxiliary ( ) const [virtual, inherited]

Return true if me is an auxiliary hypothesis.

Return values:

bool	- auxiliary or not

An auxiliary hypothesis is optional, i.e. an algorithm can work without it and another hypothesis of the same dimention can be assigned to the shape

Definition at line 114 of file SMESH_Hypothesis.hxx.

References SMESHDS_Hypothesis.GetType().

  { return GetType() == PARAM_ALGO && _param_algo_dim < 0; }

static bool SMESH_Hypothesis.IsStatusFatal ( Hypothesis_Status theStatus ) [static, inherited]

Definition at line 68 of file SMESH_Hypothesis.hxx.

References SMESH.HYP_UNKNOWN_FATAL.

Referenced by SMESH_Mesh_i.addHypothesis(), SMESH_Mesh_i.AddHypothesis(), SMESH_Mesh.AddHypothesis(), SMESH_subMesh.AlgoStateEngine(), SMESH_Mesh_i.RemoveHypothesis(), and SMESH_Mesh.RemoveHypothesis().

  { return theStatus >= HYP_UNKNOWN_FATAL; }

istream & StdMeshers_SegmentLengthAroundVertex::LoadFrom ( std::istream & load ) [virtual]

Implements SMESHDS_Hypothesis.

Definition at line 116 of file StdMeshers_SegmentLengthAroundVertex.cxx.

References SMESH_demo_hexa2_upd.a.

Referenced by operator>>().

{
  bool isOK = true;
  double a;
  isOK = (load >> a);
  if (isOK)
    this->_length = a;
  else
    load.clear(ios::badbit | load.rdstate());
  return load;
}

virtual void SMESH_Hypothesis.NotifySubMeshesHypothesisModification ( ) [virtual, inherited]

Referenced by StdMeshers_NumberOfSegments.SetReversedEdges(), StdMeshers_FixedPoints1D.SetReversedEdges(), StdMeshers_Arithmetic1D.SetReversedEdges(), and StdMeshers_ProjectionSource2D.SetSourceMesh().

bool SMESHDS_Hypothesis.operator!= ( const SMESHDS_Hypothesis & other ) const [inherited]

Definition at line 51 of file SMESHDS_Hypothesis.hxx.

{ return !(*this==other); }

bool SMESHDS_Hypothesis::operator== ( const SMESHDS_Hypothesis & other ) const [virtual, inherited]

Equality.

Definition at line 95 of file SMESHDS_Hypothesis.cxx.

References SMESHDS_Hypothesis._name.

{
  if ( this == &other )
    return true;
  if ( _name != other._name )
    return false;
  ostringstream mySave, otherSave;
  ((SMESHDS_Hypothesis*)this  )->SaveTo(mySave);
  ((SMESHDS_Hypothesis*)&other)->SaveTo(otherSave);
  return mySave.str() == otherSave.str();
}

ostream & StdMeshers_SegmentLengthAroundVertex::SaveTo ( std::ostream & save ) [virtual]

Implements SMESHDS_Hypothesis.

Definition at line 104 of file StdMeshers_SegmentLengthAroundVertex.cxx.

Referenced by operator<<().

{
  save << this->_length;
  return save;
}

void SMESH_Hypothesis::SetLastParameters ( const char * theParameters ) [inherited]

Definition at line 224 of file SMESH_Hypothesis.cxx.

{
  _lastParameters = string(theParameters);
}

void StdMeshers_SegmentLengthAroundVertex::SetLength ( double length ) throw (SALOME_Exception)

Definition at line 77 of file StdMeshers_SegmentLengthAroundVertex.cxx.

{
  if (length <= 0)
    throw SALOME_Exception(LOCALIZED("length must be positive"));
  if (_length != length) {
    _length = length;
    NotifySubMeshesHypothesisModification();
  }
}

void SMESH_Hypothesis.SetLibName ( const char * theLibName ) [inherited]

void SMESH_Hypothesis::SetParameters ( const char * theParameters ) [inherited]

Definition at line 178 of file SMESH_Hypothesis.cxx.

{
  string aNewParameters(theParameters);
  if(aNewParameters.size()==0 && _parameters.size()==0)
    aNewParameters = " ";
  if(_parameters.size()>0)
    _parameters +="|";
  _parameters +=aNewParameters;
  SetLastParameters(theParameters);
}

bool StdMeshers_SegmentLengthAroundVertex::SetParametersByDefaults	(	const TDefaults &	dflts,
		const SMESH_Mesh *	theMesh = `0`
	)		`[virtual]`

Initialize my parameter values by default parameters.

Return values:

bool	- true if parameter values have been successfully defined

Implements SMESH_Hypothesis.

Definition at line 211 of file StdMeshers_SegmentLengthAroundVertex.cxx.

{
  return false;
}

bool StdMeshers_SegmentLengthAroundVertex::SetParametersByMesh	(	const SMESH_Mesh *	theMesh,
		const TopoDS_Shape &	theShape
	)		`[virtual]`

Initialize segment length by the mesh built on the geometry.

Parameters:

theMesh	- the built mesh
theShape	- the geometry of interest

Return values:

bool	- true if parameter values have been successfully defined

Implements SMESH_Hypothesis.

Definition at line 159 of file StdMeshers_SegmentLengthAroundVertex.cxx.

References SMESH_test.edge, SMDS_MeshNode.GetInverseElementIterator(), SMDS_MeshElement.GetNode(), SMESHDS_SubMesh.GetNodes(), SMESHDS_SubMesh.NbNodes(), and SMDSAbs_Edge.

{
  if ( !theMesh || theShape.IsNull() || theShape.ShapeType() != TopAbs_VERTEX )
    return false;

  SMESH_MeshEditor editor( const_cast<SMESH_Mesh*>( theMesh ) );
  SMESH_MesherHelper helper( *editor.GetMesh() );

  // get node built on theShape vertex
  SMESHDS_Mesh* meshDS = editor.GetMeshDS();
  SMESHDS_SubMesh* smV = meshDS->MeshElements( theShape );
  if ( !smV || smV->NbNodes() == 0 )
    return false;
  const SMDS_MeshNode* vNode = smV->GetNodes()->next();

  // calculate average length of segments sharing vNode

  _length = 0.;
  int nbSegs = 0;

  SMDS_ElemIteratorPtr segIt = vNode->GetInverseElementIterator(SMDSAbs_Edge);
  while ( segIt->more() ) {
    const SMDS_MeshElement* seg = segIt->next();
    // get geom edge
    int shapeID = editor.FindShape( seg );
    if (!shapeID) continue;
    const TopoDS_Shape& s = meshDS->IndexToShape( shapeID );
    if ( s.IsNull() || s.ShapeType() != TopAbs_EDGE ) continue;
    const TopoDS_Edge& edge = TopoDS::Edge( s );
    // params of edge ends
    double u0 = helper.GetNodeU( edge, seg->GetNode(0) );
    double u1 = helper.GetNodeU( edge, seg->GetNode(1) );
    // length
    BRepAdaptor_Curve AdaptCurve( edge );
    _length += GCPnts_AbscissaPoint::Length( AdaptCurve, u0, u1);
    nbSegs++;
  }
  
  if ( nbSegs > 1 )
    _length /= nbSegs;

  return nbSegs;
}