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Weights 属性（ActiveX）

2024-5-18 18:46| 发布者: admin| 查看: 338| 评论: 0|原作者: admin|来自: AutoCAD

Weights 属性（ActiveX）

获取样条曲线的权重向量。

支持的平台：仅限 Windows

签名

VBA：

object.Weights

对象

类型：样条曲线

此属性应用于的对象。

属性值

只读：不

类型：变体（双打的三元素阵列）

样条曲线的权重向量。

言论

没有其他评论。

例子

VBA：

Sub Example_Weights()
    ' This example creates a Spline object in model space and
    ' returns the weight vector for the new Spline

    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 weightVector As Variant

    ' 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)
        
    ' Add weights to the Spline
    splineObj.SetWeight 0, 1.5
    splineObj.SetWeight 1, 2
    splineObj.SetWeight 2, 4.5
    
    ThisDrawing.Application.ZoomAll
    
    ' Display the weight vector of the new Spline
    weightVector = splineObj.Weights
    MsgBox "The weight vector of the new Spline is: " & vbCrLf & _
           weightVector(0) & vbCrLf & _
           weightVector(1) & vbCrLf & _
           weightVector(2)
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_Weights()
    ;; This example creates a Spline object in model space and
    ;; returns the weight vector for the new Spline
    (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)
        
    ;; Add weights to the Spline
    (vla-SetWeight splineObj 0 1.5)
    (vla-SetWeight splineObj 1 2)
    (vla-SetWeight splineObj 2 4.5)
    
    (vla-ZoomAll acadObj)
    
    ;; Display the weight vector of the new Spline
    (setq weightVector (vlax-variant-value (vla-get-Weights splineObj)))
    (alert (strcat "The weight vector of the new Spline is: "
                   "\n" (rtos (vlax-safearray-get-element weightVector 0) 2)
                   "\n" (rtos (vlax-safearray-get-element weightVector 1) 2)
                   "\n" (rtos (vlax-safearray-get-element weightVector 2) 2)))
)