8.9.6.21 IfcSameValue

8.9.6.21.1 Semantic definition

The function compares two numerical values and ensures that they are the same (with an epsilon precision factor). In the function the following questionable ad-hoc value is used: 0.000001 for the default precision (1E-6)

8.9.6.21.2 Formal representation

 FUNCTION IfcSameValue
 (Value1, Value2 : REAL; Epsilon : REAL)
 : LOGICAL;
  LOCAL
    ValidEps    : REAL;
    DefaultEps  : REAL := 0.000001;
  END_LOCAL;
  
  ValidEps := NVL(Epsilon, DefaultEps);
  RETURN ((Value1 + ValidEps > Value2) AND (Value1 < Value2 + ValidEps));
 
END_FUNCTION;

8.9.6.21.3 References

IfcSameCartesianPoint
IfcSameDirection

	FUNCTION IfcSameValue
	(Value1, Value2 : REAL; Epsilon : REAL)
	: LOGICAL;
	LOCAL
	ValidEps : REAL;
	DefaultEps : REAL := 0.000001;
	END_LOCAL;

	ValidEps := NVL(Epsilon, DefaultEps);
	RETURN ((Value1 + ValidEps > Value2) AND (Value1 < Value2 + ValidEps));

	END_FUNCTION;