Using Programming Languages other than VBA

Sub Example_GetBulge()
	' This example creates a lightweight polyline in model space.
	' It then finds and changes the bulge for a given segment.

	Dim plineObj As AcadLWPolyline
	Dim points(0 To 11) As Double

	' Define the 2D polyline points
	points(0) = 1: points(1) = 1
	points(2) = 1: points(3) = 2
	points(4) = 2: points(5) = 2
	points(6) = 3: points(7) = 2
	points(8) = 4: points(9) = 4
	points(10) = 4: points(11) = 1
	
	' Create a lightweight Polyline object in model space
	Set plineObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(points)
	ZoomAll

	' Find the bulge of the third segment
	Dim currentBulge As Double
	currentBulge = plineObj.GetBulge(3)
	MsgBox "The bulge for the third segment is " & plineObj.GetBulge(3), , "GetBulge Example"

	' Change the bulge of the third segment
	plineObj.SetBulge 3, -0.5
	plineObj.Update
	MsgBox "The bulge for the third segment is now " & plineObj.GetBulge(3), , "GetBulge Example"

End Sub