将身体面部投影到 Sketch 中

亲爱的，我已经开始开发一个 VBA 代码，它应该：1- 要求用户从当前 CATPART 中的任何主体中选择一个面。2- 完成后，VBA 应该在几何集中提取该表面并在该表面的轮廓上创建 3 个点。3- 基于这些点，创建一个计划，最后将该表面轮廓投影到草图内。

在我的代码下面，它不起作用。它显示类型不匹配，但没有指定。

图片大致描述了我想要的内容。注意：catpart 可能包含复杂的形状，因此提取的曲面需要相切。

Sub ExtractSurfaceAndCreateSketch()
    Dim partDocument As Object
    Dim part1 As Object
    Dim selection1 As Object
    Dim face1 As Object
    Dim hybridShapeFactory As Object
    Dim hybridBody As Object
    Dim reference1 As Object
    Dim hybridShapeExtract As Object
    Dim hybridShapePoint As Object
    Dim sketch As Object
    Dim sketches As Object

    ' Initialize CATIA Document and Part
    Set partDocument = CATIA.activeDocument
    Set part1 = partDocument.part
    Set selection1 = partDocument.selection
    
    ' Clear previous selections
    selection1.Clear
    
    ' Prompt user to select a face
    MsgBox "Please select a face from a body."
    
    ' Select the face
    On Error Resume Next
    Dim result As Variant
    result = selection1.SelectElement2("Face", "Select a face", False)
    If Err.Number <> 0 Then
        MsgBox "Error during selection: " & Err.Description
        Err.Clear
        Exit Sub
    End If
    On Error GoTo 0
    
    ' Check the type of the result and compare accordingly
    If VarType(result) = vbString Then
        If result <> "Normal" Then
            MsgBox "No valid face selected. Exiting."
            Exit Sub
        End If
    Else
        MsgBox "Unexpected return type from SelectElement2. Exiting."
        Exit Sub
    End If
    
    ' Get the selected face
    If selection1.Count = 0 Then
        MsgBox "No face selected. Exiting."
        Exit Sub
    End If
    Set face1 = selection1.Item(1).Value
    
    ' Create a reference from the face
    On Error GoTo ErrorHandler
    Set reference1 = part1.CreateReferenceFromBRepName(face1.brepName)
    
    ' Create the Hybrid Shape Factory and Hybrid Body
    Set hybridShapeFactory = part1.hybridShapeFactory
    Set hybridBody = part1.hybridBodies.Add
    
    ' Extract the surface from the face
    Set hybridShapeExtract = hybridShapeFactory.AddNewExtract(reference1)
    hybridShapeExtract.Name = "ExtractedSurface"
    hybridBody.AppendHybridShape hybridShapeExtract
    
    ' Create points on the outline of the extracted surface
    Dim posX As Variant, posY As Variant
    Dim pointArray(2) As Object
    
    ' Define UV coordinates for point placement
    posX = Array(0.1, 0.5, 0.9) ' X coordinates
    posY = Array(0.1, 0.5, 0.9) ' Y coordinates
    
    Dim i As Integer
    For i = 0 To 2
        ' Create a point on the extracted surface using UV coordinates
        Set hybridShapePoint = hybridShapeFactory.AddNewPointOnSurface(reference1, posX(i), posY(i))
        hybridBody.AppendHybridShape hybridShapePoint
        Set pointArray(i) = hybridShapePoint ' Store the points for plane creation
    Next i
    
    ' Create a plane based on the three points
    Dim hybridShapePlane As Object
    Set hybridShapePlane = hybridShapeFactory.AddNewPlaneThroughPoints(pointArray(0), pointArray(1), pointArray(2))
    hybridBody.AppendHybridShape hybridShapePlane
    
    ' Create a sketch on the new plane
    Set sketches = part1.sketches
    Set sketch = sketches.Add(hybridShapePlane)
    
    ' Extract the projected profile of the extracted surface
    Dim projectedProfile As Object
    Set projectedProfile = hybridShapeFactory.AddNewProjection(hybridShapeExtract, hybridShapePlane)
    projectedProfile.Name = "ProjectedProfile"
    hybridBody.AppendHybridShape projectedProfile
    
    ' Set the sketch as editable
    Dim sketcherEditor As Object
    Set sketcherEditor = sketch.OpenEdition()
    
    ' Create lines based on the projected profile
    Dim iCurve As Integer
    Dim profile As Object

    ' Loop through all segments of the projected profile
    For iCurve = 1 To projectedProfile.Profiles.Count
        ' Get the profile curve
        Set profile = projectedProfile.Profiles.Item(iCurve)

        ' If it's a line, extract its start and end points
        If profile.Type = "Line" Then
            Dim startPoint As Object
            Dim endPoint As Object
            
            ' Retrieve the start and end points
            Set startPoint = profile.GetStartPoint()
            Set endPoint = profile.GetEndPoint()
            
            ' Create a line in the sketch using the Factory2D
            Dim factory2D As Object
            Set factory2D = sketcherEditor.factory2D
            
            ' Create the line in the sketch
            On Error Resume Next
            factory2D.CreateLine startPoint.X, startPoint.Y, endPoint.X, endPoint.Y
            If Err.Number <> 0 Then
                MsgBox "Error creating line: " & Err.Description
                Err.Clear
            End If
            On Error GoTo 0
        End If
    Next iCurve
    
    ' Close the sketch edition
    sketch.CloseEdition
    
    ' Update the part
    part1.Update
    
    MsgBox "Surface extracted, points created, plane established, and sketch projected successfully!"

    Exit Sub

ErrorHandler:
    MsgBox "Error: " & Err.Description
    Exit Sub
End Sub