Derived classes override this method to implement the test that determines whether the two given double-precision values satisfy the desired condition or not.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
Since:  2011

Syntax

C#
public bool Evaluate(
	double lhs,
	double rhs,
	double epsilon
)
Visual Basic
Public Function Evaluate ( _
	lhs As Double, _
	rhs As Double, _
	epsilon As Double _
) As Boolean
Visual C++
public:
bool Evaluate(
	double lhs, 
	double rhs, 
	double epsilon
)

Parameters

lhs
Type: System..::..Double
A value from an element in the document.
rhs
Type: System..::..Double
The user-supplied value against which values from the document are tested.
epsilon
Type: System..::..Double
Defines the tolerance within which two values may be considered equal.

Return Value

True if the given arguments satisfy the condition, otherwise false.

Remarks

The arguments may be thought of as the left and right operands of a binary expression; for example, "a < b", "x >= 100", etc. The left operand comes from an element in the Revit document (e.g., the value of a parameter.) The right operand is supplied by the user when creating the filter that contains the rule that uses this evaluator.

Exceptions

ExceptionCondition
Autodesk.Revit.Exceptions..::..ArgumentException The given value for lhs is not finite -or- The given value for lhs is not a number -or- The given value for rhs is not finite -or- The given value for rhs is not a number -or- The given value for epsilon is not finite -or- The given value for epsilon is not a number

See Also