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Get Intersecting Face and Edge Example (VBA)

This example shows how to get the intersection of a face and an edge.




' Problem:

'       A face and an edge intersect in a series of points.


'       This code shows how to use some of the geometry-related and

'       topology-related APIs to get the intersection points.


' Preconditions:

'       (1) Part of assembly is open.

'       (2) Assembly is fully resolved.

'       (3) Two items are selected in the graphics window.

'       (4) Face is the first selected item.

'       (5) Edge is the second selected item.

'       (6) Face and the edge intersect.


' Postconditions:3D sketch is inserted with sketch points located

'        at the intersection of the face and the edge.



Option Explicit

Sub CreatePoints _

( _

    swApp As SldWorks.SldWorks, _

    swModel As SldWorks.ModelDoc2, _

    vPtArray As Variant _


    Dim swSketchPt              As SldWorks.SketchPoint

    Dim bRet                    As Boolean

    Dim i                       As Long


    swModel.SetAddToDB True

    swModel.Insert3DSketch2 False


    For i = 0 To UBound(vPtArray) Step 3

        Set swSketchPt = swModel.CreatePoint2(vPtArray(i + 0), vPtArray(i + 1), vPtArray(i + 2))

    Next i

    swModel.SetAddToDB False

    swModel.Insert3DSketch2 True


    bRet = swModel.EditRebuild3

    Debug.Assert bRet

End Sub

Sub main()

    Dim swApp                   As SldWorks.SldWorks

    Dim swModel                 As SldWorks.ModelDoc2

    Dim swSelMgr                As SldWorks.SelectionMgr

    Dim swFace                  As SldWorks.face2

    Dim swSurf                  As SldWorks.surface

    Dim swEdge                  As SldWorks.Edge

    Dim swCurve                 As SldWorks.curve

    Dim vPointArray             As Variant

    Dim vTArray                 As Variant

    Dim vUVArray                As Variant

    Dim vCurveParam             As Variant

    Dim vCurveBounds            As Variant

    Dim nCurveBounds(0 To 5)    As Double

    Dim i                       As Long

    Dim bRet                    As Boolean


    Set swApp = CreateObject("SldWorks.Application")

    Set swModel = swApp.ActiveDoc

    Set swSelMgr = swModel.SelectionManager

    Set swFace = swSelMgr.GetSelectedObject5(1)

    Set swEdge = swSelMgr.GetSelectedObject5(2)

    Set swSurf = swFace.GetSurface

    Set swCurve = swEdge.GetCurve


    vCurveParam = swEdge.GetCurveParams2


    For i = 0 To 5

        nCurveBounds(i) = vCurveParam(i)

    Next i

    vCurveBounds = nCurveBounds


    bRet = swSurf.IntersectCurve(swCurve, (vCurveBounds), vPointArray, vTArray, vUVArray)

    Debug.Assert bRet


    CreatePoints swApp, swModel, vPointArray

End Sub


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