Get selected sketch segments info using SOLIDWORKS API

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Sketch segments selected in the active sketch
Sketch segments selected in the active sketch

This VBA macro demonstrates how to extract specific sketch segment information from the selected segments using SOLIDWORKS API.

Macro will traverse all selected objects and filter sketch segments. Macro identifies the type of the segments and cast the pointer to the specific sub-type (e.g. line, spline, arc, parabola, text etc.).

Information is output to the immediate window of VBA editor.

Sketch segments specific information is printed to Immediate window of VBA editor
Sketch segments specific information is printed to Immediate window of VBA editor

Dim swApp As SldWorks.SldWorks

Sub main()

    Set swApp = Application.SldWorks
    Dim swModel As SldWorks.ModelDoc2
    Set swModel = swApp.ActiveDoc
    If Not swModel Is Nothing Then
        Dim swSelMgr As SldWorks.SelectionMgr
        Set swSelMgr = swModel.SelectionManager
        Dim i As Integer
        For i = 1 To swSelMgr.GetSelectedObjectCount2(-1)
            If swSelMgr.GetSelectedObjectType3(i, -1) = swSelectType_e.swSelSKETCHSEGS Or _
                swSelMgr.GetSelectedObjectType3(i, -1) = swSelectType_e.swSelEXTSKETCHSEGS Then
                Dim swSkSeg As SldWorks.SketchSegment
                Set swSkSeg = swSelMgr.GetSelectedObject6(i, -1)
                Debug.Print "Sketch segment at index " & i
                PrintSketchSegmentInfo swSkSeg
                Debug.Print ""
            End If
        MsgBox "Please open model"
    End If
End Sub

Function PrintSketchSegmentInfo(skSeg As SldWorks.SketchSegment)

    Select Case skSeg.GetType()
        Case swSketchSegments_e.swSketchARC
            Dim swSkArc As SldWorks.SketchArc
            Set swSkArc = skSeg
            Debug.Print "Arc"
            Debug.Print "Radius: " & swSkArc.GetRadius()
        Case swSketchSegments_e.swSketchELLIPSE
            Dim swSkEllipse As SldWorks.SketchEllipse
            Set swSkEllipse = skSeg
            Dim swMajPoint As SldWorks.SketchPoint
            Set swMajPoint = swSkEllipse.GetMajorPoint2()
            Debug.Print "Ellipse"
            Debug.Print "Major Point: " & swMajPoint.X & "," & swMajPoint.Y & "," & swMajPoint.Z
        Case swSketchSegments_e.swSketchLINE
            Dim swSkLine As SldWorks.SketchLine
            Set swSkLine = skSeg
            Debug.Print "Line"
            Debug.Print "Angle: " & swSkLine.Angle
        Case swSketchSegments_e.swSketchPARABOLA
            Dim swSkParabola As SldWorks.SketchParabola
            Set swSkParabola = skSeg
            Dim swApexPoint As SldWorks.SketchPoint
            Set swApexPoint = swSkParabola.GetApexPoint2
            Debug.Print "Parabola"
            Debug.Print "Apex Point: " & swApexPoint.X & "," & swApexPoint.Y & "," & swApexPoint.Z
        Case swSketchSegments_e.swSketchSPLINE
            Dim swSkSpline As SldWorks.SketchSpline
            Set swSkSpline = skSeg
            Dim vSplinePts As Variant
            vSplinePts = swSkSpline.GetPoints2()
            Debug.Print "Spline"
            Debug.Print "Points: " & UBound(vSplinePts) + 1
        Case swSketchSegments_e.swSketchTEXT
            Dim swSkText As SldWorks.SketchText
            Set swSkText = skSeg
            Debug.Print "Text"
            Debug.Print swSkText.Text
        Case Else
            Err.Raise vbError, "", "Unsupported sketch segment"
    End Select
End Function

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