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Create Sketch Path Example (VB.NET)

This example shows how to create a sketch path.

'---------------------------------------------------------------------------
' Preconditions:
' 1. Verify that the specified document template exists.
' 2. Open an Immediate window.
'
' Postconditions:  
' 1. Creates a new model document with Sketch1.
' 2. Selects the Sketch1 segments.
' 3. Creates a sketch path.
' 4. Creates a sketch circle.
' 5. Adds a tangent relation between the sketch path and sketch circle.
' 6. Inspect the Immediate window.
'---------------------------------------------------------------------------
Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics
 
Partial Class SolidWorksMacro
 
    Dim swModel As ModelDoc2
    Dim swSelMgr As SelectionMgr
    Dim swFeat As Feature
    Dim swSketch As Sketch
    Dim i As Integer
    Dim bRet As Boolean
    Dim vSketchPath As Object
    Dim swSketchPath As SketchPath
    Dim nLength As Double
    Dim vConstraint As Object
    Dim swSkRel As SketchRelation
    Dim vRelation As Object
    Dim vSkRel As Object
    Dim vSketchSeg As Object
    Dim swSketchSeg As SketchSegment
    Dim swSketchMgr As SketchManager
    Dim boolstatus As Boolean
 
 
    Sub main()
 
        swModel = swApp.NewDocument("C:\ProgramData\SolidWorks\SOLIDWORKS 2015\templates\Part.prtdot", 0, 0, 0)
        swModel = swApp.ActiveDoc
 
        swModel.SketchManager.InsertSketch(True)
        boolstatus = swModel.Extension.SelectByID2("Front Plane""PLANE", -0.0416217612836357, 0.0270960165695038, 0.00355460240358513, False, 0, Nothing, 0)
 
        Dim skSegment As Object
        skSegment = swModel.SketchManager.CreateLine(-0.055655, 0.037535, 0.0#, 0.011848, 0.039924, 0.0#)
        skSegment = swModel.SketchManager.CreateLine(0.011848, 0.039924, 0.0#, 0.018817, 0.009658, 0.0#)
        skSegment = swModel.SketchManager.CreateLine(0.018817, 0.009658, 0.0#, 0.05227, 0.008264, 0.0#)
        skSegment = swModel.SketchManager.CreateLine(0.05227, 0.008264, 0.0#, 0.065809, 0.036414, 0.0#)
 
        swModel.SketchManager.InsertSketch(True)
 
        swSelMgr = swModel.SelectionManager
        swSketchMgr = swModel.SketchManager
 
        ' Select the sketch
        bRet = swModel.Extension.SelectByID2("Sketch1""SKETCH", 0, 0, 0, False, 0, Nothing, 0)
 
        swFeat = swSelMgr.GetSelectedObject6(1, -1)
        swSketch = swFeat.GetSpecificFeature2
 
 
        ' Put the sketch in edit mode
        swModel.EditSketch()
 
        ' Get the sketch segments
        vSketchSeg = swSketch.GetSketchSegments
 
        For i = 0 To UBound(vSketchSeg)
            swSketchSeg = vSketchSeg(i)
            swSketchSeg.Select4(TrueNothing)
        Next
 
        ' Create a chain using the selected sketch segments
        bRet = swSketchMgr.MakeSketchChain
        swModel.ClearSelection2(True)
 
        ' Get the sketch path
        vSketchPath = swSketch.GetSketchPaths
        swModel.ClearSelection2(True)
 
        ' Create a circle
        swSketchMgr.CreateCircle(-0.07515069296375, 0.04810565031983, 0, -0.055655, 0.037535, 0)
 
        ' Add a tangent relation between sketch path and sketch circle
        boolstatus = swModel.Extension.SelectByID2("Arc1""SKETCHSEGMENT", -0.0544261072733269, 0.0471088420855688, -0.00328513702299429, False, 0, Nothing, 0)
        boolstatus = swModel.Extension.SelectByID2("Line1""SKETCHSEGMENT", -0.0422450565500339, 0.0367651345154678, -0.00268554920844266, True, 0, Nothing, 0)
        swModel.SketchAddConstraints("sgTANGENT")
 
        ' Print the number of constraints, number of relations,
        ' path length, number of sketch segments, whether the path was selected,
        ' type of constraints, and type of relations
        For i = 0 To UBound(vSketchPath)
 
            swSketchPath = vSketchPath(i)
            Debug.Print(" Number of constraints: " & swSketchPath.GetConstraintsCount)
            Debug.Print(" Number of relations: " & swSketchPath.GetRelationsCount)
            Debug.Print(" Path length: " & swSketchPath.GetLength)
            Debug.Print(" Number of segments: " & swSketchPath.GetSketchSegmentCount)
            Debug.Print(" Selection result: " & swSketchPath.Select(FalseNothing))
 
            vConstraint = swSketchPath.GetConstraints
 
            Dim j As Integer
            j = 0
 
            If (Not IsNothing(vConstraint)) Then
                For j = 0 To UBound(vConstraint)
                    Debug.Print("  SketchSegConstraint[" & i & "]: " & vConstraint(j))
                Next j
            End If
 
            vRelation = swSketchPath.GetRelations
 
            Dim k As Integer
            k = 0
 
            For Each vSkRel In vRelation
                swSkRel = vSkRel
                Debug.Print("    Relation(" & k & ")")
                Debug.Print("      Type: " & swSkRel.GetRelationType)
                k = k + 1
            Next
 
            ' Get the sketch segments in the sketch path and
            ' their lengths
            vSketchSeg = swSketchPath.GetSketchSegments
 
            Dim l As Integer
            For l = 0 To UBound(vSketchSeg)
 
                swSketchSeg = vSketchSeg(l)
 
                ' Ignore construction lines
                If swSketchSeg.ConstructionGeometry = False Then
                    ' Ignore text
                    If swSketchSegments_e.swSketchTEXT <> swSketchSeg.GetType Then
                        nLength = nLength + swSketchSeg.GetLength
                    End If
                End If
 
            Next l
 
            Debug.Print(" Total path length calculated by segment: " & nLength)
 
        Next
 
        swModel.SketchManager.InsertSketch(True)
    End Sub
 
 
    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks
 
 
End Class
 

 



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