Using Programming Languages other than VBA

Sub Example_EndAngle()
	' This example creates an ellipse and enters the start and
	' end angles to create an elliptical arc.
	Dim ellObj As AcadEllipse
	Dim majAxis(0 To 2) As Double
	Dim center(0 To 2) As Double
	Dim radRatio As Double

	' Create an ellipse in model space
	center(0) = 5#: center(1) = 5#: center(2) = 0#
	majAxis(0) = 10: majAxis(1) = 20#: majAxis(2) = 0#
	radRatio = 0.3
	Set ellObj = ThisDrawing.ModelSpace.AddEllipse(center, majAxis, radRatio)

	'Enter a start angle of 45 degrees, and an end angle of 270 degrees
	ellObj.startAngle = 45 * (3.14 / 180)
	ellObj.endAngle = 270 * (3.14 / 180)
	ZoomAll
	MsgBox "This ellipse has a start angle of " & ellObj.startAngle * (180 / 3.14) & " and the end angle of " & ellObj.endAngle * (180 / 3.14) & " degrees.", vbInformation, "EndAngle Example"
End Sub