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Get and Set Spline Handles Example (VBA)

This example shows how to get and set the properties of spline handles in an a 2D spline.

 

'-------------------------------------------------

'

' Preconditions: Part document containing a

'                2D spline is open.

'

' Postconditions: Some of the properties of some of

'                the spline handles are modified.

'

'--------------------------------------------------

Option Explicit

 

Dim swApp As SldWorks.SldWorks

Dim swModel As SldWorks.ModelDoc2

Dim swSelMgr As SldWorks.SelectionMgr

Dim swModelDocExt As SldWorks.ModelDocExtension

Dim swSpline As SldWorks.SketchSpline

Dim swSplineHandle As Variant

Dim boolstatus As Boolean

Dim i As Long

 

Sub main()

 

    Set swApp = Application.SldWorks

    Set swModel = swApp.ActiveDoc

    Set swSelMgr = swModel.SelectionManager

    Set swModelDocExt = swModel.Extension

 

    ' Select and get the spline

    boolstatus = swModelDocExt.SelectByID2("Spline1", "SKETCHSEGMENT", 0.01671371527778, 0.02415763888889, 0, False, 0, Nothing, 0)

    Set swSpline = swSelMgr.GetSelectedObject6(1, 0)

 

    ' Get the handles on the spline

    swSplineHandle = swSpline.GetSplineHandles()

 

    ' For each handle...

    For i = 0 To UBound(swSplineHandle)

        Debug.Print "Spline Count " & swSplineHandle(i).SplinePointNumber

        Debug.Print " X : " & swSplineHandle(i).X * 1000

        Debug.Print " Y : " & swSplineHandle(i).Y * 1000

        Debug.Print " Z : " & swSplineHandle(i).Z * 1000

        

        If (i = 0) Then

            swSplineHandle(i).X = -62.33246528 / 1000 'swSplineHandle(i).X + 0.02

            swSplineHandle(i).Y = -14.71944444 / 1000 'swSplineHandle(i).Y + 0.02

        End If

        Debug.Print " TangentMagnitude : " & swSplineHandle(i).TangentMagnitude(swTangentMagnitudeDirection1)

        Debug.Print " TangentRadialDirection : " & swSplineHandle(i).TangentRadialDirection

        If (i = 2) Then

                swSplineHandle(i).TangentMagnitude(swTangentMagnitudeDirection1) = (swSplineHandle(i).TangentMagnitude(swTangentMagnitudeDirection1)) + 0.02

                swSplineHandle(i).TangentRadialDirection = swSplineHandle(i).TangentRadialDirection + 0.5

        End If

        

        Debug.Print " Curvature : " & swSplineHandle(i).Curvature

        Debug.Print " Radius of Curvature : " & swSplineHandle(i).RadiusOfCurvature

            

        If (i = 3) Then

            'Curvature and radius of curvature depend on one another so test one value at time

            'SplineHandle(i).Curvature = SplineHandle(i).Curvature / 2

            swSplineHandle(i).RadiusOfCurvature = swSplineHandle(i).RadiusOfCurvature / 2

        End If

        

        If (i = 3) Then

            Debug.Print " TangentDriving : " & swSplineHandle(i).TangentDriving

            If (swSplineHandle(i).TangentDriving) Then

                swSplineHandle(i).TangentDriving = False

            Else

                swSplineHandle(i).TangentDriving = True

            End If

            swSplineHandle(i).Reset

        

        End If

       

    Next

End

    

End Sub



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