Using Programming Languages other than VBA

Sub Example_AddDimArc()
	Dim PI As Double: PI = 3.141592
	Dim oMS As AcadModelSpace
	Set oMS = ThisDrawing.ModelSpace

	Dim ptCenter(2) As Double
	Dim oA As AcadArc
	Set oA = oMS.AddArc(ptCenter, 10, PI / 3, PI * 3 / 4)

	Dim ptArcPoint(2) As Double
	ptArcPoint(0) = 0: ptArcPoint(1) = 15

	Dim oAcadDimArcLength As AcadDimArcLength
	Set oAcadDimArcLength = oMS.AddDimArc(oA.Center, oA.startPoint, oA.endPoint, ptArcPoint)

	Update
	ZoomExtents
End Sub