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Closed2 属性（ActiveX）

2024-5-18 19:08| 发布者: admin| 查看: 93| 评论: 0|原作者: admin|来自: AutoCAD

Closed2 属性（ActiveX）

指定样条曲线是打开还是关闭。

支持的平台：仅限 Windows

签名

VBA：

object.Closed2

对象

类型：样条曲线

此属性应用于的对象。

属性值

只读：不

类型：布尔

True：对象已关闭。
False：对象处于打开状态（默认）。

言论

闭合样条时，使其两端切连续。如果样条曲线的起点和终点已经相同，则闭合样条曲线可使其在两个点处相切连续。

打开闭合样条曲线时，如果样条曲线的起点和终点在关闭之前相同，则此属性将样条曲线返回到其原始状态。起点和终点保持不变，但失去了切线连续性。

打开闭合样条时，如果样条曲线的起点和终点在闭合之前不相同，则此属性将样条返回到其原始状态并删除切线连续性。

例子

VBA：

Sub Example_Closed()
    ' This example creates a polyline and then toggles the
    ' setting to Closed.
    Dim plineObj As AcadPolyline
    Dim closedState As String

    ' Create the polyline
    Dim points(8) As Double
    points(0) = 3: points(1) = 7: points(2) = 0
    points(3) = 9: points(4) = 2: points(5) = 0
    points(6) = 3: points(7) = 5: points(8) = 0
    Set plineObj = ThisDrawing.ModelSpace.AddPolyline(points)

    ' Set the closed property to True
    plineObj.Closed = True      ' Close Polyline
    ThisDrawing.Regen (True)
    GoSub DISPLAY

    ' Open the PolyLine by setting the closed property to False
    plineObj.Closed = False      ' Open Polyline
    ThisDrawing.Regen (True)
    GoSub DISPLAY

    Exit Sub

DISPLAY:
    ' Retrieve and display the Closed property
    closedState = IIf(plineObj.Closed, "Closed", "Open")
    MsgBox "The new Polyline is: " & closedState, vbInformation, "Closed Example"
    Return
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_Closed()
    ;; This example creates a polyline and then toggles the
    ;; setting to Closed.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))

    ;; Create the polyline
    (setq points (vlax-make-safearray vlax-vbDouble '(0 . 8)))
    (vlax-safearray-fill points '(3 7 0
				  9 2 0
				  3 5 0
				 )
    )

    (setq modelSpace (vla-get-ModelSpace doc))
    (setq plineObj (vla-AddPolyline modelSpace points))

    ;; Set the closed property to True
    (vla-put-Closed plineObj :vlax-true)      ;; Close Polyline
    (vla-Regen doc :vlax-true)

    ;; Retrieve and display the Closed property
    (setq closedState (if (= (vla-get-Closed plineObj) :vlax-true) "Closed" "Open"))
    (alert (strcat "The new Polyline is: " closedState))

    ;; Open the PolyLine by setting the closed property to False
    (vla-put-Closed plineObj :vlax-false)      ;; Open Polyline
    (vla-Regen doc :vlax-true)

    ;; Retrieve and display the Closed property
    (setq closedState (if (= (vla-get-Closed plineObj) :vlax-true) "Closed" "Open"))
    (alert (strcat "The new Polyline is: " closedState))
)