+ throw(SALOME_Exception)
+{
+ if (_distrType != DT_Scale)
+ throw SALOME_Exception(LOCALIZED("not a scale distribution"));
+ return _scaleFactor;
+}
+
+//================================================================================
+/*!
+ *
+ */
+//================================================================================
+
+void StdMeshers_NumberOfSegments::SetTableFunction(const vector<double>& table)
+ throw(SALOME_Exception)
+{
+ if (_distrType != DT_TabFunc)
+ _distrType = DT_TabFunc;
+ //throw SALOME_Exception(LOCALIZED("not a table function distribution"));
+ if ( (table.size() % 2) != 0 )
+ throw SALOME_Exception(LOCALIZED("odd size of vector of table function"));
+
+ double prev = -PRECISION;
+ bool isSame = table.size() == _table.size();
+
+ bool pos = false;
+ for ( size_t i = 0; i < table.size() / 2; i++ )
+ {
+ double par = table[i*2];
+ double val = table[i*2+1];
+ if( _convMode==0 )
+ {
+ try {
+ OCC_CATCH_SIGNALS;
+ val = pow( 10.0, val );
+ }
+ catch(Standard_Failure) {
+ throw SALOME_Exception( LOCALIZED( "invalid value"));
+ return;
+ }
+ }
+ else if( _convMode==1 && val<0.0 )
+ val = 0.0;
+
+ if ( par < 0 || par > 1)
+ throw SALOME_Exception(LOCALIZED("parameter of table function is out of range [0,1]"));
+ if ( fabs(par-prev) < PRECISION )
+ throw SALOME_Exception(LOCALIZED("two parameters are the same"));
+ if ( val < 0 )
+ throw SALOME_Exception(LOCALIZED("value of table function is not positive"));
+ if( val > PRECISION )
+ pos = true;
+ if (isSame)
+ {
+ double oldpar = _table[i*2];
+ double oldval = _table[i*2+1];
+ if ( fabs(par - oldpar) > PRECISION || fabs(val - oldval) > PRECISION )
+ isSame = false;
+ }
+ prev = par;
+ }
+
+ if( !pos )
+ throw SALOME_Exception(LOCALIZED("value of table function is not positive"));
+
+ if ( pos && !isSame )
+ {
+ _table = table;
+ NotifySubMeshesHypothesisModification();
+ }
+}
+
+//================================================================================
+/*!
+ *
+ */
+//================================================================================
+
+const vector<double>& StdMeshers_NumberOfSegments::GetTableFunction() const
+ throw(SALOME_Exception)
+{
+ if (_distrType != DT_TabFunc)
+ throw SALOME_Exception(LOCALIZED("not a table function distribution"));
+ return _table;
+}
+
+//================================================================================
+/*! check if only 't' is unknown variable in expression
+ */
+//================================================================================
+bool isCorrectArg( const Handle( Expr_GeneralExpression )& expr )
+{
+ Handle( Expr_NamedUnknown ) sub = Handle( Expr_NamedUnknown )::DownCast( expr );
+ if( !sub.IsNull() )
+ return sub->GetName()=="t";
+
+ bool res = true;
+ for( int i=1, n=expr->NbSubExpressions(); i<=n && res; i++ )
+ {
+ Handle( Expr_GeneralExpression ) sub = expr->SubExpression( i );
+ Handle( Expr_NamedUnknown ) name = Handle( Expr_NamedUnknown )::DownCast( sub );
+ if( !name.IsNull() )
+ {
+ if( name->GetName()!="t" )
+ res = false;
+ }
+ else
+ res = isCorrectArg( sub );
+ }
+ return res;
+}
+
+//================================================================================
+/*! this function parses the expression 'str' in order to check if syntax is correct
+ * ( result in 'syntax' ) and if only 't' is unknown variable in expression ( result in 'args' )
+ */
+//================================================================================
+bool process( const TCollection_AsciiString& str, int convMode,
+ bool& syntax, bool& args,
+ bool& non_neg, bool& non_zero,
+ bool& singulars, double& sing_point )
+{
+ Kernel_Utils::Localizer loc;
+
+ bool parsed_ok = true;
+ Handle( ExprIntrp_GenExp ) myExpr;
+ try {
+ OCC_CATCH_SIGNALS;
+ myExpr = ExprIntrp_GenExp::Create();
+ myExpr->Process( str.ToCString() );
+ } catch(Standard_Failure) {
+ parsed_ok = false;
+ }
+
+ syntax = false;
+ args = false;
+ if( parsed_ok && myExpr->IsDone() )
+ {
+ syntax = true;
+ args = isCorrectArg( myExpr->Expression() );
+ }
+
+ bool res = parsed_ok && syntax && args;
+ if( !res )
+ myExpr.Nullify();
+
+ non_neg = true;
+ singulars = false;
+ non_zero = false;
+
+ if( res )
+ {
+ FunctionExpr f( str.ToCString(), convMode );
+ const int max = 500;
+ for( int i=0; i<=max; i++ )
+ {
+ double t = double(i)/double(max), val;
+ if( !f.value( t, val ) )
+ {
+ sing_point = t;
+ singulars = true;
+ break;
+ }
+ if( val<0 )
+ {
+ non_neg = false;
+ break;
+ }
+ if( val>PRECISION )
+ non_zero = true;
+ }
+ }
+
+ return res && non_neg && non_zero && ( !singulars );
+}
+
+//================================================================================
+/*!
+ *
+ */
+//================================================================================
+
+void StdMeshers_NumberOfSegments::SetExpressionFunction(const char* expr)
+ throw(SALOME_Exception)