IsPlanar Property （ActiveX）

签名

工 务 局：

object.IsPlanar

对象

类型：样条

此属性适用的对象。

属性值

只读：是的

类型：布尔

• True：样条是平面的。
• False：样条不是平面的。

言论

没有额外的评论。

例子

工 务 局：

Sub Example_IsPlanar()
    ' This example creates a Spline object in model space and
    ' determines whether the Spline is planar

    Dim splineObj As AcadSpline
    Dim startTan(0 To 2) As Double, endTan(0 To 2) As Double
    Dim fitPoints(0 To 8) As Double
    Dim UserMessage As String

    ' Define the Spline object
    startTan(0) = 0.5: startTan(1) = 0.5: startTan(2) = 0
    endTan(0) = 0.5: endTan(1) = 0.5: endTan(2) = 0
    fitPoints(0) = 0: fitPoints(1) = 0: fitPoints(2) = 0: fitPoints(3) = 5
    fitPoints(4) = 5: fitPoints(5) = 0: fitPoints(6) = 10: fitPoints(7) = 0: fitPoints(8) = 0
    
    ' Create new Spline object
    Set splineObj = ThisDrawing.ModelSpace.AddSpline(fitPoints, startTan, endTan)
    ThisDrawing.Application.ZoomAll
    
    ' Display whether or not new Spline is planar
    UserMessage = IIf(splineObj.IsPlanar, "is planar", "is not planar")
    
    MsgBox "The new Spline " & UserMessage

End Sub

Visual LISP：

(vl-load-com)
(defun c:Example_IsPlanar()
    ;; This example creates a Spline object in model space and
    ;; determines whether the Spline is planar
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Define the Spline object
    (setq startTan (vlax-3d-point 0.5 0.5 0)
          endTan (vlax-3d-point 0.5 0.5 0)
          fitPoints (vlax-make-safearray vlax-vbDouble '(0 . 8)))
    (vlax-safearray-fill fitPoints '(0 0 0
				     5 5 0
				     10 0 0
				    )
    )
    
    ;; Create new Spline object
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq splineObj (vla-AddSpline modelSpace fitPoints startTan endTan))
    (vla-ZoomAll acadObj)
    
    ;; Display whether or not new Spline is planar
    (setq UserMessage (if (= (vla-get-IsPlanar splineObj) :vlax-true) "is planar" "is not planar"))
    
    (alert (strcat "The new Spline " UserMessage))
)