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PurgeFitData 方法（ActiveX）

2024-5-18 18:44| 发布者: admin| 查看: 294| 评论: 0|原作者: admin|来自: AutoCAD

清除样条曲线的拟合数据。

支持的平台：仅限 Windows

签名

VBA：

object.PurgeFitData

对象

类型：样条曲线

此方法应用到的对象。

返回值（RetVal）

无返回值。

言论

移除样条曲线的拟合数据。

例子

VBA：

Sub Example_PurgeFitData()
    ' This example creates a spline object in model space.
    ' It then returns the current number of fit points,
    ' and then purges the fit data.

    Dim splineObj As AcadSpline
    Dim startTan(0 To 2) As Double
    Dim endTan(0 To 2) As Double
    Dim fitPoints(0 To 8) As Double
    
    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
    Set splineObj = ThisDrawing.ModelSpace.AddSpline(fitPoints, startTan, endTan)
    ZoomAll
    
    MsgBox "Before the purge there are " & splineObj.NumberOfFitPoints & " fit points.", , "PurgeFitData Example"

    ' Purge the fit data
    splineObj.PurgeFitData

    ThisDrawing.Regen True
    MsgBox "After the purge there are " & splineObj.NumberOfFitPoints & " fit points.", , "PurgeFitData Example"
    
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_PurgeFitData()
    ;; This example creates a spline object in model space.
    ;; It then returns the current number of fit points,
    ;; and then purges the fit data.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))

    ;; Create the spline
    (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
				    )
    )
  
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq splineObj (vla-AddSpline modelSpace fitPoints startTan endTan))
    (vla-ZoomAll acadObj)
    
    (alert (strcat "Before the purge there are " (itoa (vla-get-NumberOfFitPoints splineObj)) " fit points."))

    ;; Purge the fit data
    (vla-PurgeFitData splineObj)

    (vla-Regen doc :vlax-true)
    (alert (strcat "After the purge there are " (itoa (vla-get-NumberOfFitPoints splineObj)) " fit points."))
)