ArrowheadBlock プロパティ(ActiveX)

径寸法または引出線のカスタム矢印に使用するブロックを指定します。

サポートされているプラットフォーム: Windows のみ

構文と要素

VBA:

object.ArrowheadBlock

object

タイプ: DimRadial、DimRadialLarge、Leader、MLeader、MLeaderLeader

このプロパティが適用されるオブジェクト。

プロパティの値

読み込み専用: いいえ

タイプ: 文字列

引出線の矢印として使用するブロックの名前。

注意

注: このプロパティは、指定された寸法でシステム変数 DIMLDRBLK[引出線矢印タイプ]の値を変更します。

例

VBA:

Sub Example_ArrowHeadBlock()
    ' This example creates a radial dimension object in model space
    ' and then alters the visible appearance (shape) of the arrowhead
    ' using the ArrowHeadBlock property.
    ' Use the ArrowHeadBlock property to set the arrowhead to an existing
    ' block object containing a custom Circle object

    Dim dimObj As AcadDimRadial
    Dim center(0 To 2) As Double
    Dim chordPoint(0 To 2) As Double
    Dim leaderLen As Integer
    Dim BlockName As String
    
    ' Define the dimension
    center(0) = 0#: center(1) = 0#: center(2) = 0#
    chordPoint(0) = 5#: chordPoint(1) = 5#: chordPoint(2) = 0#
    leaderLen = 5
    
    ' Create the radial dimension in model space
    Set dimObj = ThisDrawing.ModelSpace.AddDimRadial(center, chordPoint, leaderLen)
    ZoomAll
    
    ' Set arrowhead type to user-defined to allow
    ' the use of a block as the new arrowhead
    'dimObj.ArrowheadType = acArrowUserDefined
    dimObj.ArrowheadBlock = "CBlock"
    ZoomAll
    
    ' Read and display current arrowhead block name
    BlockName = dimObj.ArrowheadBlock
    
    MsgBox "The arrowhead block name for this object is: " & BlockName
    
End Sub

Visual LISP:

(vl-load-com)
(defun c:Example_ArrowHeadBlock()
    ;; This example creates a radial dimension object in model space
    ;; and then alters the visible appearance (shape) of the arrowhead
    ;; using the ArrowHeadBlock property.
    ;; Use the ArrowHeadBlock property to set the arrowhead to an existing
    ;; block object containing a custom Circle object
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))

    ;; Define the dimension
    (setq center (vlax-3d-point 0 0 0)
          chordPoint (vlax-3d-point 5 5 0)
          leaderLen 5)
    
    ;; Create the radial dimension in model space
    (setq modelSpace (vla-get-ModelSpace doc))  
    (setq dimObj (vla-AddDimRadial modelSpace center chordPoint leaderLen))
    (vla-ZoomAll acadObj)
    
    ;; Use the custom block as the new arrowhead, the block must exist in the drawing
    (vla-put-ArrowheadBlock dimObj "CBlock")
    (vla-ZoomAll acadObj)
    
    ;; Read and display current arrowhead block name
    (setq BlockName (vla-get-ArrowheadBlock dimObj))
    
    (alert (strcat "The arrowhead block name for this object is: " BlockName))
)