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Get Sketch Constraints Example (VBA)

This examples shows how to:

  • determine whether a sketch is under-constrained or over-constrained.
  • iterate over all the segments in the sketch and get their constraints.
'------------------------------------------------------------------
' Preconditions:
' 1. Open install_dir\samples\tutorial\surfaces\nozzle.sldprt.
' 2. Select Sketch14 in the FeatureManager design tree.
' 3. Examine the graphics area.
'
' Postconditions:
' 1. Iterates all constraints in Sketch14 and prints
'    to the Immediate window its constraint status and constraints.
' 2. Examine the Immediate window.
'------------------------------------------------------------------
Option Explicit
Sub main()
    Dim swApp As SldWorks.SldWorks
    Dim swModel As SldWorks.ModelDoc2
    Dim swSelMgr As SldWorks.SelectionMgr
    Dim swFeat As SldWorks.Feature
    Dim swSketch As SldWorks.Sketch
    Dim vSketchSeg As Variant
    Dim vConstraint As Variant
    Dim i As Long
    Dim j As Long
    Dim bRet As Boolean
    Set swApp = Application.SldWorks
    Set swModel = swApp.ActiveDoc
    Set swSelMgr = swModel.SelectionManager
    Set swFeat = swSelMgr.GetSelectedObject6(1, -1)
    Set swSketch = swFeat.GetSpecificFeature2
    Debug.Print "Sketch = " & swFeat.Name
    Debug.Print ""
    Debug.Print "  SketchConstraintStatus (3 = fully constrained) = " & swSketch.GetConstrainedStatus
    Debug.Print ""
    
    ' Put sketch into edit mode to get access
    ' to constraint information for each segment
    ' in the sketch
    swModel.EditSketch
    vSketchSeg = swSketch.GetSketchSegments
    For i = 0 To UBound(vSketchSeg)
        vConstraint = vSketchSeg(i).GetConstraints
        For j = 0 To UBound(vConstraint)
            Debug.Print "  SketchSegConstraint[" & i & "] = " & vConstraint(j)
        Next j
    Next i
    ' Exit edit mode and do not rebuild the model
    swModel.InsertSketch2 False
End Sub


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