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Radius 属性（ActiveX）

2024-5-18 19:09| 发布者: admin| 查看: 158| 评论: 0|原作者: admin|来自: AutoCAD

Radius 属性（ActiveX）

指定圆弧、圆或位置标记的半径。

支持的平台：仅限 Windows

签名

VBA：

object.Radius

对象

类型：圆弧、圆形、GeoPositionMarker

此属性应用于的对象。

属性值

只读：不

类型：双

圆弧、圆或位置标记的半径。

言论

圆的半径

例子

VBA：

Sub Example_Radius()
    ' This example creates an arc in model space.
    ' It then returns the radius of the arc.
    Dim arcObj As AcadArc
    Dim centerPoint(0 To 2) As Double
    Dim radius As Double
    Dim startAngleInDegree As Double
    Dim endAngleInDegree As Double
    
    ' Define the circle
    centerPoint(0) = 0#: centerPoint(1) = 0#: centerPoint(2) = 0#
    radius = 5#
    startAngleInDegree = 10#
    endAngleInDegree = 230#
    
    ' Convert the angles in degrees to angles in radians
    Dim startAngleInRadian As Double
    Dim endAngleInRadian As Double
    startAngleInRadian = startAngleInDegree * 3.141592 / 180#
    endAngleInRadian = endAngleInDegree * 3.141592 / 180#
    
    ' Create the arc object in model space
    Set arcObj = ThisDrawing.ModelSpace.AddArc(centerPoint, radius, startAngleInRadian, endAngleInRadian)
    ZoomAll
    
    ' Find the radius of the arc
    radius = arcObj.radius
    MsgBox "The radius of the arc is " & arcObj.radius, , "Radius Example"
    
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_Radius()
    ;; This example creates an arc in model space.
    ;; It then returns the radius of the arc.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Define the circle
    (setq centerPoint (vlax-3d-point 0 0 0)  
          radius 5
          startAngleInDegree 10
          endAngleInDegree 230)
    
    ;; Convert the angles in degrees to angles in radians
    (setq startAngleInRadian (/ (* startAngleInDegree 3.141592) 180))
    (setq endAngleInRadian (/ (* endAngleInDegree 3.141592) 180))
    
    ;; Create the arc object in model space
    (setq modelSpace (vla-get-ModelSpace doc))  
    (setq arcObj (vla-AddArc modelSpace centerPoint radius startAngleInRadian endAngleInRadian))
    (vla-ZoomAll acadObj)
    
    ;; Find the radius of the arc
    (alert (strcat "The radius of the arc is " (rtos (vla-get-Radius arcObj))))
)