Using Programming Languages other than VBA

Sub Example_Weights()
   ' This example creates a Spline object in model space and
   ' returns the weight vector for the new Spline

	Dim splineObj As AcadSpline
	Dim startTan(0 To 2) As Double, endTan(0 To 2) As Double
	Dim fitPoints(0 To 8) As Double
	Dim weightVector As Variant

	' Define the Spline object
	startTan(0) = 0.5: startTan(1) = 0.5: startTan(2) = 0
	endTan(0) = 0.5: endTan(1) = 0.5: endTan(2) = 0
	fitPoints(0) = 0: fitPoints(1) = 0: fitPoints(2) = 0
	fitPoints(3) = 5:	fitPoints(4) = 5: fitPoints(5) = 0
	fitPoints(6) = 10: fitPoints(7) = 0: fitPoints(8) = 0

	' Create new Spline object
	Set splineObj = ThisDrawing.ModelSpace.AddSpline(fitPoints, startTan, endTan)
	
	' Add weights to the Spline
	splineObj.SetWeight 0, 1.5
	splineObj.SetWeight 1, 2
	splineObj.SetWeight 2, 4.5

	ThisDrawing.Application.ZoomAll

	' Display the weight vector of the new Spline
	weightVector = splineObj.Weights
	MsgBox "The weight vector of the new Spline is: " & vbCrLf & _
											weightVector(0) & vbCrLf & _
											weightVector(1) & vbCrLf & _
											weightVector(2)
End Sub