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

CenterMarkSize 属性（ActiveX）

2024-5-18 16:54| 发布者: admin| 查看: 61| 评论: 0|原作者: admin|来自: AutoCAD

指定径向尺寸和直径尺寸的中心标记的大小。

支持的平台：仅限 Windows

签名

VBA：

object.CenterMarkSize

对象

类型：DimDiametric、DimRadial、DimRadialLarge

此属性应用于的对象。

属性值

只读：不

类型：双

一个正实数，指定中心标记或线条的大小。

言论

此属性的初始值为 0.0900。

如果该属性设置为，则此属性不可用。CenterTypeacCenterNone

注意：此属性将覆盖给定维度的 DIMCEN 系统变量的值。

例子

VBA：

Sub Example_CenterMarkSize()
    ' This example creates a diametric dimension in model space.
    ' It then changes the type of center for the dimension to
    ' center mark, and adjusts the size of the center mark.
    
    Dim dimObj As AcadDimDiametric
    Dim chordPoint(0 To 2) As Double
    Dim farChordPoint(0 To 2) As Double
    Dim leaderLength As Double
    
    ' Define the dimension
    chordPoint(0) = 5#: chordPoint(1) = 3#: chordPoint(2) = 0#
    farChordPoint(0) = 5#: farChordPoint(1) = 5#: farChordPoint(2) = 0#
    leaderLength = 1#
    
    ' Create the diametric dimension in model space
    Set dimObj = ThisDrawing.ModelSpace.AddDimDiametric(chordPoint, farChordPoint, leaderLength)
    ZoomAll
        
    ' Change the center type to center mark and set the size of the center mark
    dimObj.CenterType = acCenterMark
    dimObj.CenterMarkSize = 0.1
    dimObj.Update
    MsgBox "The center mark size is: " & dimObj.CenterMarkSize
    
    dimObj.CenterMarkSize = dimObj.CenterMarkSize * 2
    dimObj.Update
    MsgBox "The center mark size is: " & dimObj.CenterMarkSize
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_CenterMarkSize()
    ;; This example creates a diametric dimension in model space.
    ;; It then changes the type of center for the dimension to
    ;; center mark, and adjusts the size of the center mark.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
  
    ;; Define the dimension
    (setq chordPoint (vlax-3d-point 5 3 0)
          farChordPoint (vlax-3d-point 5 5 0)
          leaderLength 1)
    
    ;; Create the diametric dimension in model space
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq dimObj (vla-AddDimDiametric modelSpace chordPoint farChordPoint leaderLength))
    (vla-ZoomAll acadObj)
        
    ;; Change the center type to center mark and set the size of the center mark
    (vla-put-CenterType dimObj acCenterMark)
    (vla-put-CenterMarkSize dimObj 0.1)
    (vla-Update dimObj)
    (alert (strcat "The center mark size is: " (rtos (vla-get-CenterMarkSize dimObj) 2)))
    
    (vla-put-CenterMarkSize dimObj (* (vla-get-CenterMarkSize dimObj) 2))
    (vla-Update dimObj)
    (alert (strcat "The center mark size is: " (rtos (vla-get-CenterMarkSize dimObj) 2)))
)