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Linetype 属性（ActiveX）

2024-5-18 18:45| 发布者: admin| 查看: 329| 评论: 0|原作者: admin|来自: AutoCAD

指定对象的线型。

支持的平台：仅限 Windows

签名

VBA：

object.Linetype

对象

类型：所有绘图对象、AttributeReference、Group、Layer、SubDMeshEdge、SubDMeshFace、SubDMeshVertex、SubEntity、SubEntSolidEdge、SubEntSolidFace、SubEntSolidNode、SubEntSolidVertex

此属性应用于的对象。

属性值

只读：不;只写对象除外Group

类型：字符串

对象的线型。默认线型为图层的线型（ByLayer）。

Continuous：默认线型，在线型符号表中自动创建。
ByLayer：对象图层的线型值。
ByBlock：对象周围块定义的当前块引用的线型值。

言论

线型值标识用于绘制线条的一系列点和破折号。如果未指定线型，则当前活动线型将用于新图元。如果为实体指定了线型，则忽略当前活动线型。使用该属性可以设置或查询当前活动线型。ActiveLinetype

注意：无法以编程方式创建线型。可以通过使用 Load 方法首先加载线型，然后使用 Add 方法将其添加到集合中，将现有线型添加到图形中。Linetypes

例子

VBA：

Sub Example_Linetype()
    ' This example searches for the linetype DashDot. If it is
    ' not found, it is added from the acad.lin file. Then a
    ' line is created and changed to the DashDot linetype.
    
    ' Search the linetypes collection for the DashDot linetype.
    Dim entry As AcadLineType
    Dim found As Boolean
    found = False
    For Each entry In ThisDrawing.Linetypes
        If StrComp(entry.name, "DASHDOT", 1) = 0 Then
            found = True
            Exit For
        End If
    Next
    If Not (found) Then ThisDrawing.Linetypes.Load "DASHDOT", "acad.lin"
        
    ' Create the line
    Dim lineObj As AcadLine
    Dim startPoint(0 To 2) As Double
    Dim endPoint(0 To 2) As Double
    startPoint(0) = 1#: startPoint(1) = 1#: startPoint(2) = 0#
    endPoint(0) = 4#: endPoint(1) = 4#: endPoint(2) = 0#
    Set lineObj = ThisDrawing.ModelSpace.AddLine(startPoint, endPoint)
    
    ' Change the linetype of the line
    lineObj.Linetype = "DASHDOT"
    ZoomAll
    
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_Linetype()
    ;; This example searches for the linetype DashDot. If it is
    ;; not found, it is added from the acad.lin file. Then a
    ;; line is created and changed to the DashDot linetype.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
  
    ;; Search the linetypes collection for the DashDot linetype.
    (setq found :vlax-false)
    (vlax-for entry (vla-get-Linetypes doc)
        (if (= (vla-get-Name entry) "DASHDOT")
            (setq found :vlax-true)
        )
    )
  
    (if (= found :vlax-false)
        (vla-Load (vla-get-Linetypes doc) "DASHDOT" "acad.lin")
    )
        
    ;; Create the line
    (setq startPoint (vlax-3d-point 1 1 0)
          endPoint (vlax-3d-point 4 4 0))
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq lineObj (vla-AddLine modelSpace startPoint endPoint))
    
    ;; Change the linetype of the line
    (vla-put-Linetype lineObj "DASHDOT")
    (vla-ZoomAll acadObj)
)