Set Spline Tangency and Curvature Controls Example (VBA)

This example show how to set a spline's tangency and curvature controls.

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

'

' Preconditions: Sketch of a spline is active.

'

' Postconditions: Tangency and curvature control are set

'                for the specified points.

'

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

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 swSplineH1 As SldWorks.SplineHandle

Dim swSplineH2 As SldWorks.SplineHandle

Dim boolstatus As Boolean

Sub main()

    Set swApp = Application.SldWorks

    Set swModel = swApp.ActiveDoc

    Set swSelMgr = swModel.SelectionManager

    Set swModelDocExt = swModel.Extension

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

    Set swSpline = swSelMgr.GetSelectedObject6(1, 0)

    ' Set tangency control; substitute coordinates of a point in your spline

    Set swSplineH1 = swSpline.AddTangencyControl(-48.92 / 1000, -5.07 / 1000, 0)

    Debug.Print "Spline point number: " & swSplineH1.SplinePointNumber()

    ' Add curvature control; substitute coordinates of a point in your spline

    Set swSplineH2 = swSpline.AddCurvatureControl(6.3 / 1000, 15.075 / 1000, 0)

    Debug.Print "Spline point number: " & swSplineH2.SplinePointNumber()

    ' Reset all handles

    ' swSpline.ResetAllHandles

    ' Relax spline

    ' swSpline.RelaxSpline

    swModel.WindowRedraw

End Sub