[编程申请]：关于从DXF文件中提取离散点的程序

xiaopei520

在.DXF文件里提取离散点，并将其保存为surfer可以直接读取的文件格式,在surfer中生成曲面。
程序如下（VB）其中要添加一些基本的控建如:ComDlg,Command1：
Private Sub Command1_Click()
Dim a, b, c As String
Dim xx, yy, zz As String
Dim X(), Y(), Z() As String
'Dim FJ As String
Dim Line, I, J As Integer, pp As Integer
Dim wzp() As String
Line = 0
J = 0

On Error Resume Next

With ComDlg'读取文件
    .DialogTitle = "选择文本文件"
    .Filter = "DXF文件（*.dxf）|*.dxf|文本文件（*.txt）|*.txt|所有文件（*.*）|*.*"
    .InitDir = "D:\"
    .ShowOpen
End With

If Right(ComDlg.FileName, 3) <> "dxf" And Right(ComDlg.FileName, 3) <> "txt" Then
    MsgBox "不支持的文件格式!", vbCritical, "警告"
    Exit Sub
End If

Open ComDlg.FileName For Input As #1
Do While Not EOF(1)
Line = Line + 1
Input #1, a
If a = "AcDbPoint" Then
Input #1, b
Input #1, xx
Input #1, b
Input #1, yy
Input #1, b
Input #1, zz
'ReDim X(0 To 17), Y(0 To 17), Z(0 To 17) As String
Dim FJ(1 To 17) As String
J = J + 1

FJ(J) = xx & "," & yy & "," & zz
'MsgBox "X=" & X(J) & " Y=" & Y(J) & " Z=" & Z(J), vbInformation, "提示"
End If
Loop
'MsgBox FJ(J), vbInformation, "提示"
Text1.Text = Line
Text2.Text = J
If J = 0 Then
    MsgBox "没有点数据！", vbOKOnly, "提示"
    Exit Sub
End If

Close #1

'***************************需要重新赋值**************************
Dim wzp1(1 To 17) As String
For J = 1 To 17
wzp1(J) = FJ(J)
Next J

'MsgBox "X=" & X(J) & " Y=" & Y(J) & " Z=" & Z(J), vbInformation, "提示"
Dim JGname As String
    JGname = ComDlg.FileName
    JGname = Left(JGname, Len(JGname) - 4) & "结果.txt"'生成新的名称
Open JGname For Output As #1
Print #1, "X,", "Y,", "Z"
'Print #1, FJ
For J = 1 To 17
Print #1, wzp1(J) ', Y(I), Z(I)
Next J
Close #1
MsgBox "转换完毕！", vbOKOnly, "提示"

End Sub


可以用下面的TXT文件试试：）

xiaopei520

下面是将生成的文件用surfer转换成曲面

mepc

开源的东西好啊，不过你要是写一个从dwg文件提取南方格式点的坐标的程序就好了