NX二次开发之VB.NET(指定图层)批量导出PART为STL

Option Strict Off
Imports System
Imports System.Collections.Generic
Imports NXOpen
Imports NXOpen.UF 
Module Module2
    Dim theSession As Session = Session.GetSession()
    Dim theUfSession As UFSession = UFSession.GetUFSession()
    Dim lw As ListingWindow = theSession.ListingWindow 
    Sub Main() 
        If IsNothing(theSession.Parts.BaseWork) Then
            Return
        End If 
        Dim workPart As Part = theSession.Parts.Work
        lw.Open()


        Dim theSolids As New List(Of Body) 
        For Each temp As Body In workPart.Bodies
            If temp.IsSolidBody  andalso temp.Layer = 1 Then
                theSolids.Add(temp)    '添加实体
            End If
        Next 
        Try
            ExportSTLFiles(workPart.FullPath, theSolids, 0.003, 0.003)    '导出函数
        Catch ex As NXException
            lw.WriteLine("NX Error: " & ex.Message)
        Catch ex As Exception
            lw.WriteLine("Error: " & ex.Message)
        End Try
        lw.Close() 
    End Sub
 
    Sub ExportSTLFiles(ByVal FileName As String, ByVal theObjects As List(Of Body), ByVal triangleTolerance As Double, ByVal adjacencyTolerance As Double)
        Dim NumErrors As Integer
        Dim InfoError() As UFStd.StlError
        Dim Header, FileBaseName As String
        InfoError = Nothing
        Dim parentFolder As String = IO.Path.GetDirectoryName(FileName)
        Dim fileNameNoExt As String = IO.Path.GetFileNameWithoutExtension(FileName)    ' 返回不具有扩展名的指定路径字符串的文件名
        'FileName = IO.Path.ChangeExtension(FileName, ".stl")
        Dim suffix As Integer = 1
        For Each temp As Body In theObjects
            Dim FileHandle As IntPtr
            Dim fileNameWithSuffix As String = fileNameNoExt & "_" & suffix.ToString & ".stl"    '文件名加下标
            FileBaseName = IO.Path.GetFileName(FileName)
            Header = "Header: " & FileBaseName
            theUfSession.Std.OpenBinaryStlFile(IO.Path.Combine(parentFolder, fileNameWithSuffix), False, Header, FileHandle)               '文件夹与文件名合并完整路径
            theUfSession.Ui.SetPrompt("Creating file ... " & FileBaseName & " ...")   'UI界面显示创建信息
            theUfSession.Std.PutSolidInStlFile(FileHandle, Tag.Null, temp.Tag, 0.0, 0.0, triangleTolerance, NumErrors, InfoError)                   '执行
            theUfSession.Std.CloseStlFile(FileHandle)    ’关闭文件句柄
            theUfSession.Ui.SetStatus("File ... " & FileBaseName & " generated ...")    'UI界面显示生成信息
            suffix += 1
        Next 
    End Sub
 
    Public Function GetUnloadOption(ByVal dummy As String) As Integer
        GetUnloadOption = NXOpen.Session.LibraryUnloadOption.Immediately 
    End Function
End Module

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