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Length 属性（ActiveX）

2024-5-18 18:57| 发布者: admin| 查看: 325| 评论: 0|原作者: admin|来自: AutoCAD

Length 属性（ActiveX）

获取对象的长度。

支持的平台：仅限 Windows

签名

VBA：

object.Length

对象

类型：3DPolyline、Line、LWPolyline、PointCloud、折线、SweptSurface

此属性应用于的对象。

属性值

只读：是的

类型：双

线的长度。

言论

没有其他评论。

例子

VBA：

Sub Example_Length()
   ' This example adds a line in model space and returns the length of the new line

    Dim lineObj As AcadLine
    Dim startPoint(0 To 2) As Double, endPoint(0 To 2)  As Double
    
    ' Define the start and end points for the line
    startPoint(0) = 1: startPoint(1) = 1: startPoint(2) = 0
    endPoint(0) = 5: endPoint(1) = 5: endPoint(2) = 0

    ' Create the line in model space
    Set lineObj = ThisDrawing.ModelSpace.AddLine(startPoint, endPoint)

    ThisDrawing.Application.ZoomAll
    
    MsgBox "The length of the new Line is: " & lineObj.length
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_Length()
    ;; This example adds a line in model space and returns the length of the new line
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))

    ;; Define the start and end points for the line
    (setq startPoint (vlax-3d-point 1 1 0)
          endPoint (vlax-3d-point 5 5 0))

    ;; Create the line in model space
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq lineObj (vla-AddLine modelSpace startPoint endPoint))

    (vla-ZoomAll acadObj)
    
    (alert (strcat "The length of the new Line is: " (rtos (vla-get-Length lineObj) 2)))
)