円の円周を指定します。
サポートされているプラットフォーム: Windows のみ
読み込み専用: いいえ
タイプ: 倍精度浮動小数点数型
円の円周。
追加の注意はありません。
VBA:
Sub Example_Circumference()
' This example creates a Circle object in model space and
' returns the circumference of the Circle
Dim circleObj As AcadCircle
Dim centerPoint(0 To 2) As Double
Dim radius As Double
' Define the new Circle object
centerPoint(0) = 0: centerPoint(1) = 0: centerPoint(2) = 0
radius = 5#
' Create the Circle object in model space
Set circleObj = ThisDrawing.ModelSpace.AddCircle(centerPoint, radius)
ThisDrawing.Application.ZoomAll
MsgBox "The circumference of the new Circle is: " & circleObj.Circumference
End Sub
Visual LISP:
(vl-load-com)
(defun c:Example_Circumference()
;; This example creates a Circle object in model space and
;; returns the circumference of the Circle
(setq acadObj (vlax-get-acad-object))
(setq doc (vla-get-ActiveDocument acadObj))
;; Define the new Circle object
(setq centerPoint (vlax-3d-point 5 5 0)
radius 5)
;; Create the Circle object in model space
(setq modelSpace (vla-get-ModelSpace doc))
(setq circleObj (vla-AddCircle modelSpace centerPoint radius))
(vla-ZoomAll acadObj)
(alert (strcat "The circumference of the new Circle is: " (rtos (vla-get-Circumference circleObj) 2)))
)