Gets the number of distinct knots on a curve. The multiplicity of a knot is not taken into account.

Note: This command uses output arguments. C# and some scripting languages (such as JScript, PerlScript and Python) don't support arguments passed by reference so you need to use the best workaround for your situation:

For scripting languages this command returns an ISIVTCollection which you can use to get the output arguments.

For C# you can use the XSIApplication.ExecuteCommand method to call this command. ExecuteCommand packs the output arguments into a C# System.Object containing an Array of the output arguments (see Calling Commands from C#).

VBScript Example

'This example shows how to get the number of distinct knots from a curve
newscene
dim nbKnots
'Create a standard spiral with 16 subdivisions.
CreatePrim "Spiral", "NurbsCurve"       
' Get the number of knots. 
GetNumberOfKnots "Spiral", nbKnots 
logmessage "Number of Knots: " & nbKnots

GetCurveLength GetCurvePercentageAtKnotIndex EvaluateCurveAt