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IEvaluate2 Method (ICurve)

Evaluates the curve at the specified parameter of the curve.

.NET Syntax

Visual Basic (Declaration) 
Function IEvaluate2( _
   ByVal Parameter As Double, _
   ByVal NumberOfDerivatives As Integer _
) As Double
Visual Basic (Usage) 
Dim instance As ICurve
Dim Parameter As Double
Dim NumberOfDerivatives As Integer
Dim value As Double
 
value = instance.IEvaluate2(Parameter, NumberOfDerivatives)
C# 
double IEvaluate2( 
   double Parameter,
   int NumberOfDerivatives
)
C++/CLI 
double IEvaluate2( 
&   double Parameter,
&   int NumberOfDerivatives
) 

Parameters

Parameter

Curve parameter

NumberOfDerivatives

Number of derivatives

Return Value

Array of doubles (see Remarks)

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:

 

Curve type

Maximum number of derivatives

Line/circle/ellipse

2

Intersection curve

2

Constant parameter line

Determined by underlying surface

SP-curve

2

B-curve

Any number

 

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.

 

See Also

Availability

SolidWorks 2007 SP5, Revision Number 15.5


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