Macro to add horizontal and vertical ordinate dimensions for holes in SOLIDWORKS drawings view

Dim swApp As SldWorks.SldWorks
Dim swMathUtils As SldWorks.MathUtility

Sub main()

    Set swApp = Application.SldWorks
        
    Set swMathUtils = swApp.GetMathUtility
        
    Dim swModel As SldWorks.ModelDoc2
    
    Set swModel = swApp.ActiveDoc
    
    Dim swView As SldWorks.view

    Set swView = swModel.SelectionManager.GetSelectedObject6(1, -1)
    
    If swView Is Nothing Then
        Err.Raise vbError, "", "Please select view"
    End If
    
    Dim swOrigVertex As SldWorks.vertex
    Set swOrigVertex = FindOriginVertex(swView)
    
    Dim vHoles As Variant
    vHoles = FindHoles(swView)
    
    If IsEmpty(vHoles) Then
        Err.Raise vbError, "", "No holes found"
    End If
    
    Dim vOutline As Variant
    vOutline = swView.GetOutline
    
    Dim offset As Double
    offset = (vOutline(2) - vOutline(1)) * 0.1
    
    AddOrdinateDimensions swModel, swOrigVertex, vHoles, swAddOrdinateDims_e.swHorizontalOrdinate, 0, vOutline(1) - offset
    AddOrdinateDimensions swModel, swOrigVertex, vHoles, swAddOrdinateDims_e.swVerticalOrdinate, vOutline(0) - offset, 0

End Sub

Sub AddOrdinateDimensions(model As SldWorks.ModelDoc2, origVertex As SldWorks.vertex, holes As Variant, dimType As swAddOrdinateDims_e, x As Double, y As Double)
    
    Dim swSels() As SldWorks.Entity
    ReDim swSels(1 + UBound(holes))
    
    Set swSels(0) = origVertex
    
    Dim i As Integer
    
    For i = 0 To UBound(holes)
        Set swSels(i + 1) = holes(i)
    Next
    
    If model.Extension.MultiSelect2(swSels, False, Nothing) = UBound(swSels) + 1 Then
        Dim res As Long
        res = model.Extension.AddOrdinateDimension(dimType, x, y, 0)
        
        model.SetPickMode
        
        If res <> swCreateOrdDimError_e.swCreateOrdDimErr_Success Then
            Err.Raise vbError, "", "Failed to add ordinate dimension"
        End If
    Else
        Err.Raise vbError, "", "Failed to select entities"
    End If
    
End Sub


Function FindOriginVertex(view As SldWorks.view) As SldWorks.vertex
    
    Dim vComps As Variant
    
    vComps = view.GetVisibleComponents
    
    Dim swViewTransform As SldWorks.MathTransform
    Set swViewTransform = view.ModelToViewTransform
    
    Dim swOriginVertex As SldWorks.vertex
    
    If Not IsEmpty(vComps) Then
    
        Dim i As Integer
        
        For i = 0 To UBound(vComps)
        
            Dim swComp As SldWorks.Component2
                
            Set swComp = vComps(i)
            
            Dim vVisEnts As Variant
            vVisEnts = view.GetVisibleEntities2(swComp, swViewEntityType_e.swViewEntityType_Vertex)
            
            Dim j As Integer
            
            For j = 0 To UBound(vVisEnts)
                Dim swVertex As SldWorks.vertex
                Set swVertex = vVisEnts(j)
                                
                If swOriginVertex Is Nothing Then
                    Set swOriginVertex = swVertex
                Else
                    Dim vCurOrigCoord As Variant
                    vCurOrigCoord = GetVertexCoordinate(swOriginVertex, swViewTransform)
                    
                    Dim vCoord As Variant
                    vCoord = GetVertexCoordinate(swVertex, swViewTransform)

                    If vCoord(0) < vCurOrigCoord(0) And vCoord(1) < vCurOrigCoord(1) Then
                        Set swOriginVertex = swVertex
                    End If
                    
                End If
                
            Next
            
        Next
        
    End If
    
    If swOriginVertex Is Nothing Then
        Err.Raise vbError, "", "Failed to find origin vertex"
    End If
    
    Set FindOriginVertex = swOriginVertex
    
End Function

Function GetVertexCoordinate(vertex As SldWorks.vertex, transform As SldWorks.MathTransform) As Variant
        
    Dim vCoordPt As Variant
    vCoordPt = vertex.GetPoint()
    
    Dim swMathPt As SldWorks.MathPoint
    Set swMathPt = swMathUtils.CreatePoint(vCoordPt)
    
    Set swMathPt = swMathPt.MultiplyTransform(transform)
    
    GetVertexCoordinate = swMathPt.ArrayData
    
End Function

Function FindHoles(view As SldWorks.view) As Variant
    
    Dim vComps As Variant
    
    vComps = view.GetVisibleComponents
       
    Dim swHoles() As SldWorks.Edge
    
    If Not IsEmpty(vComps) Then
    
        Dim i As Integer
        
        For i = 0 To UBound(vComps)
        
            Dim swComp As SldWorks.Component2
                
            Set swComp = vComps(i)
            
            Dim vVisEnts As Variant
            vVisEnts = view.GetVisibleEntities2(swComp, swViewEntityType_e.swViewEntityType_Edge)
            
            Dim j As Integer
            
            For j = 0 To UBound(vVisEnts)
                
                Dim swEdge As SldWorks.Edge
                Set swEdge = vVisEnts(j)
                
                Dim swCurve As SldWorks.Curve
                Set swCurve = swEdge.GetCurve
                
                If False <> swCurve.IsCircle() Then
                    
                    Dim isClosed As Boolean
                    swCurve.GetEndParams -1, -1, isClosed, -1
                    
                    If False <> isClosed Then
                    
                        If (Not swHoles) = -1 Then
                            ReDim swHoles(0)
                        Else
                            ReDim Preserve swHoles(UBound(swHoles) + 1)
                        End If
                        
                        Set swHoles(UBound(swHoles)) = swEdge
        
                    End If
                    
                End If
                
            Next
            
        Next
        
    End If
    
    If (Not swHoles) = -1 Then
        FindHoles = Empty
    Else
        FindHoles = swHoles
    End If

End Function