Function IEvaluate2( _
   ByVal Parameter As System.Double, _
   ByVal NumberOfDerivatives As System.Integer _
) As System.Double

Dim instance As ICurve
Dim Parameter As System.Double
Dim NumberOfDerivatives As System.Integer
Dim value As System.Double
 
value = instance.IEvaluate2(Parameter, NumberOfDerivatives)

System.double IEvaluate2( 
   System.double Parameter,
   System.int NumberOfDerivatives
)

System.double IEvaluate2( 
&   System.double Parameter,
&   System.int NumberOfDerivatives
) 

Parameters

Parameter

Curve parameter

NumberOfDerivatives

Number of derivatives

Return Value

Array of doubles (see Remarks)

To determine a valid parameter range, use ICurve::GetEndParams or IEdge::GetCurveParams2.

The format of the return value is an array of (NumberOfDerivatives + 1) * 3 doubles:

[evaluated point], [evaluated derivative 1],...[evaluated derivative NumberOfDerivatives]

In pseudo mathematical notation, this could be written as:

    P(t)  P(t)/dt  P(t)/dtdt ..........

 In terms of the number of derivatives that can be returned for a curve type, you could write:

where the curve type is from ICurve::Identity.

For a curve of type swCurveTypes_e::TRIMMED_TYPE, the number of derivatives is determined by the base curve as obtained from ICurve::GetBaseCurve.