CAD开发者社区 › 首页 ›AutoCAD开发文档› AutoCAD 2018 开发者帮助 › 查看内容

AutoCAD 2018 开发者帮助

ExtLine1Point 属性（ActiveX）

2024-5-18 16:54| 发布者: admin| 查看: 305| 评论: 0|原作者: admin|来自: AutoCAD

指定延长线 1 的原点。

支持的平台：仅限 Windows

签名

VBA：

object.ExtLine1Point

对象

类型：DimAligned、DimArcLength

此属性应用于的对象。

属性值

只读：不

类型：变体（双打的三元素阵列）

表示第一条延伸线原点的 3D 坐标。

言论

对齐尺寸的尺寸线将平行于连接延伸线 1 和 2 原点的线。

要标注尺寸的线

创建的维度

例子

VBA：

Sub Example_ExtLine1Point()
    ' This example creates an aligned dimension and then changes the
    ' ExtLine1Point property for that dimension.

    Dim dimObj As AcadDimAligned
    Dim point1(0 To 2) As Double
    Dim point2(0 To 2) As Double
    Dim location(0 To 2) As Double
    
    ' Define the dimension
    point1(0) = 5#: point1(1) = 5#: point1(2) = 0#
    point2(0) = 10#: point2(1) = 5#: point2(2) = 0#
    location(0) = 5#: location(1) = 7#: location(2) = 0#
    
    ' Create an aligned dimension object in model space
    Set dimObj = ThisDrawing.ModelSpace.AddDimAligned(point1, point2, location)
    ZoomAll
    MsgBox "The current value for ExtLine1Point is " & dimObj.ExtLine1Point(0) & ", " & dimObj.ExtLine1Point(1) & ", " & dimObj.ExtLine1Point(2), vbInformation, "ExtLine1Point Example"
    
    ' Change the endpoint of the first extension line
    point1(0) = 2: point1(1) = 5: point1(2) = 0
    dimObj.ExtLine1Point = point1
    dimObj.Update
    
    ' Return the endpoint of the first extension line
    ' Note that the return value is a Variant
    Dim retPnt As Variant
    retPnt = dimObj.ExtLine1Point
    
    MsgBox "The new value for ExtLine1Point is " & dimObj.ExtLine1Point(0) & ", " & dimObj.ExtLine1Point(1) & ", " & dimObj.ExtLine1Point(2), vbInformation, "ExtLine1Point Example"
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_ExtLine1Point()
    ;; This example creates an aligned dimension and then changes the
    ;; ExtLine1Point property for that dimension.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Define the dimension
    (setq point1 (vlax-3d-point 5 5 0)
          point2 (vlax-3d-point 10 5 0)
          location (vlax-3d-point 5 7 0))
    
    ;; Create an aligned dimension object in model space
    (setq modelSpace (vla-get-ModelSpace doc))  
    (setq dimObj (vla-AddDimAligned modelSpace point1 point2 location))
    (vla-ZoomAll acadObj)

    (setq extLinePoint (vlax-safearray->list (vlax-variant-value (vla-get-ExtLine1Point dimObj))))
    (alert (strcat "The current value for ExtLine1Point is " (rtos (nth 0 extLinePoint) 2) ", "
		                                             (rtos (nth 1 extLinePoint) 2) ", "
		                                             (rtos (nth 2 extLinePoint) 2)))
  
    ;; Change the endpoint of the first extension line
    (setq point1 (vlax-3d-point 2 5 0))
    (vla-put-ExtLine1Point dimObj point1)
    (vla-Update dimObj)
    
    ;; Return the endpoint of the first extension line
    ;; Note that the return value is a Variant
    (setq retPnt (vlax-safearray->list (vlax-variant-value (vla-get-ExtLine1Point dimObj))))
    (alert (strcat "The new value for ExtLine1Point is " (rtos (nth 0 retPnt) 2) ", "
		                                         (rtos (nth 1 retPnt) 2) ", "
		                                         (rtos (nth 2 retPnt) 2)))
)