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Select Tangent Edges Topologically Example (VBA)

This example shows how to selected edges using IEdges::GetTangentEdges, which is a topological function and, therefore, precise.

 

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

Option Explicit

Sub main()

    Dim swApp                   As SldWorks.SldWorks

    Dim swModel                 As SldWorks.ModelDoc2

    Dim swSelMgr                As SldWorks.SelectionMgr

    Dim swSelEdge               As SldWorks.Edge

    Dim vTanEdgeArr             As Variant

    Dim vTanEdge                As Variant

    Dim swTanEdge               As SldWorks.Edge

    Dim swTanEnt                As SldWorks.entity

    Dim bRet                    As Boolean

    

    Set swApp = Application.SldWorks

    Set swModel = swApp.ActiveDoc

    Set swSelMgr = swModel.SelectionManager

    Set swSelEdge = swSelMgr.GetSelectedObject5(1)

    

    ' IEdge::GetTangentEdges does not give same results as user

    ' interface select tangency method, IModelDoc2::SelectTangency,

    ' because the user interface functionality automatically takes

    ' into account edges that lie on top of each other and is, therefore, imprecise.

    ' IEdge::GetTangentEdges is a topological function and is precise.

    vTanEdgeArr = swSelEdge.GetTangentEdges: If IsEmpty(vTanEdgeArr) Then Exit Sub

    For Each vTanEdge In vTanEdgeArr

        Set swTanEdge = vTanEdge

        Set swTanEnt = swTanEdge

        

        bRet = swTanEnt.Select4(True, Nothing): Debug.Assert bRet

    Next vTanEdge

End Sub

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



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