Using Programming Languages other than VBA

Sub Example_AddFitPoint()
	' This example creates a spline object in model space.
	' It then adds a fit point to the spline.

	' Create the spline
	Dim splineObj As AcadSpline
	Dim startTan(0 To 2) As Double
	Dim endTan(0 To 2) As Double
	Dim fitPoints(0 To 8) As Double

	startTan(0) = 0.5: startTan(1) = 0.5: startTan(2) = 0
	endTan(0) = 0.5: endTan(1) = 0.5: endTan(2) = 0
	fitPoints(0) = 1: fitPoints(1) = 1: fitPoints(2) = 0
	fitPoints(3) = 5: fitPoints(4) = 5: fitPoints(5) = 0
	fitPoints(6) = 10: fitPoints(7) = 0: fitPoints(8) = 0

	' Create the spline object
	Set splineObj = ThisDrawing.ModelSpace.AddSpline(fitPoints, startTan, endTan)
	ZoomAll
	MsgBox "The Spline has " & splineObj.NumberOfFitPoints & " fit points.", , "AddFitPoint Example"

	' Define the new fit point
	Dim newFitPoint(0 To 2) As Double
	newFitPoint(0) = 8: newFitPoint(1) = 5: newFitPoint(2) = 0

	' Add the new fit point at the first index in the spline's array of points
	splineObj.AddFitPoint 1, newFitPoint
	ThisDrawing.Regen True
	MsgBox "A fit point has been added at Index:1  WCS: 8, 5, 0" & vbCrLf & "The Spline has " & splineObj.NumberOfFitPoints & " fit points.", , "AddFitPoint Example"

End Sub