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

 

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