使用 VBA 以外的其它编程语言

Sub Example_ArcLength()
    ' This example creates an Arc in model space and returns the length of the new Arc
    Dim arcObj As AcadArc
    Dim centerPoint(0 To 2)  As Double
    Dim radius As Double
    Dim startAngleInDegree As Double, endAngleInDegree As Double
    Dim startAngleInRadian As Double, endAngleInRadian As Double
    
    ' Define the Arc
    centerPoint(0) = 0: centerPoint(1) = 0: centerPoint(2) = 0
    radius = 5#
    startAngleInDegree = 10#: endAngleInDegree = 230#

    ' Convert the angles in degrees to angles in radians
    startAngleInRadian = startAngleInDegree * 3.141592 / 180#
    endAngleInRadian = endAngleInDegree * 3.141592 / 180#
    
    ' Create the arc object in model space
    Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)
    ThisDrawing.Application.ZoomAll
    
    ' Return length of new arc
    MsgBox "The length of the new Arc is: " & arcObj.ArcLength
End Sub