版主sdh142857，关于您开发的vb有限元软件的几点要求

zeallnln

版主sdh142857：

               下载了您的软件，感觉不错。

                 缺点就是代码注释比较少。既然您的软件是开源的，那就多给大家注释一下，最好再加个流程图。
否则不方便大家学习交流。


                 你的软件按钮不能随着窗口的大小变化来调节位置以及按钮大小。我把这个代码给你。


以下代码写入主窗口
Private Sub Form_Resize()
  Dim H, i As Integer
  On Error Resume Next
  Resize_ALL Me 'Me是窗体名，Form1,Form2等等都可以
End Sub

以下代码写在模块中
Public Type ctrObj
  Name As String
  Index As Long
  Parrent As String
  Top As Long
  Left As Long
  Height As Long
  Width As Long
  ScaleHeight As Long
  ScaleWidth As Long
End Type
Private FormRecord() As ctrObj
Private ControlRecord() As ctrObj
Private bRunning As Boolean
Private MaxForm As Long
Private MaxControl As Long
Private Const WM_NCLBUTTONDOWN = &HA1
Private Declare Function SendMessage Lib "USER32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Declare Function ReleaseCapture Lib "USER32" () As Long
Function ActualPos(plLeft As Long) As Long
  If plLeft < 0 Then
    ActualPos = plLeft + 75000
  Else
    ActualPos = plLeft
  End If
End Function
Function FindForm(pfrmIn As Form) As Long
  Dim i As Long
  FindForm = -1
  If MaxForm > 0 Then

    For i = 0 To (MaxForm - 1)
      If FormRecord(i).Name = pfrmIn.Name Then
        FindForm = i
        Exit Function
      End If
    Next i
  End If
End Function

Function AddForm(pfrmIn As Form) As Long
  Dim FormControl As Control
  Dim i As Long
  ReDim Preserve FormRecord(MaxForm + 1)
  FormRecord(MaxForm).Name = pfrmIn.Name
  FormRecord(MaxForm).Top = pfrmIn.Top
  FormRecord(MaxForm).Left = pfrmIn.Left
  FormRecord(MaxForm).Height = pfrmIn.Height
  FormRecord(MaxForm).Width = pfrmIn.Width
  FormRecord(MaxForm).ScaleHeight = pfrmIn.ScaleHeight
  FormRecord(MaxForm).ScaleWidth = pfrmIn.ScaleWidth
  AddForm = MaxForm
  MaxForm = MaxForm + 1
  For Each FormControl In pfrmIn
    i = FindControl(FormControl, pfrmIn.Name)
    If i < 0 Then
      i = AddControl(FormControl, pfrmIn.Name)
    End If
  Next FormControl
End Function
Function FindControl(inControl As Control, inName As String) As Long
  Dim i As Long
  FindControl = -1
  For i = 0 To (MaxControl - 1)
    If ControlRecord(i).Parrent = inName Then
      If ControlRecord(i).Name = inControl.Name Then
        On Error Resume Next
        If ControlRecord(i).Index = inControl.Index Then
          FindControl = i
          Exit Function
        End If
        On Error GoTo 0
      End If
    End If
  Next i
End Function
Function AddControl(inControl As Control, inName As String) As Long
  ReDim Preserve ControlRecord(MaxControl + 1)
  On Error Resume Next
  ControlRecord(MaxControl).Name = inControl.Name
  ControlRecord(MaxControl).Index = inControl.Index
  ControlRecord(MaxControl).Parrent = inName
  If TypeOf inControl Is Line Then
    ControlRecord(MaxControl).Top = inControl.Y1
    ControlRecord(MaxControl).Left = ActualPos(inControl.X1)
    ControlRecord(MaxControl).Height = inControl.Y2
    ControlRecord(MaxControl).Width = ActualPos(inControl.X2)
  Else
    ControlRecord(MaxControl).Top = inControl.Top
    ControlRecord(MaxControl).Left = ActualPos(inControl.Left)
    ControlRecord(MaxControl).Height = inControl.Height
    ControlRecord(MaxControl).Width = inControl.Width
  End If
  inControl.IntegralHeight = False
  On Error GoTo 0
  AddControl = MaxControl
  MaxControl = MaxControl + 1
End Function
Function PerWidth(pfrmIn As Form) As Long
  Dim i As Long
  i = FindForm(pfrmIn)
  If i < 0 Then
    i = AddForm(pfrmIn)
  End If
  PerWidth = (pfrmIn.ScaleWidth * 100) \ FormRecord(i).ScaleWidth
End Function
Function PerHeight(pfrmIn As Form) As Double
  Dim i As Long
  i = FindForm(pfrmIn)
  If i < 0 Then
    i = AddForm(pfrmIn)
  End If
  PerHeight = (pfrmIn.ScaleHeight * 100) \ FormRecord(i).ScaleHeight
End Function
Public Sub ResizeControl(inControl As Control, pfrmIn As Form)
  On Error Resume Next
  Dim i As Long
  Dim widthfactor As Single, heightfactor As Single
  Dim minFactor As Single
  Dim yRatio, xRatio, lTop, lLeft, lWidth, lHeight As Long
  yRatio = PerHeight(pfrmIn)
  xRatio = PerWidth(pfrmIn)
  i = FindControl(inControl, pfrmIn.Name)
  If inControl.Left < 0 Then
    lLeft = CLng(((ControlRecord(i).Left * xRatio) \ 100) - 75000)
  Else
    lLeft = CLng((ControlRecord(i).Left * xRatio) \ 100)
  End If
  lTop = CLng((ControlRecord(i).Top * yRatio) \ 100)
  lWidth = CLng((ControlRecord(i).Width * xRatio) \ 100)
  lHeight = CLng((ControlRecord(i).Height * yRatio) \ 100)
  If TypeOf inControl Is Line Then
    If inControl.X1 < 0 Then
      inControl.X1 = CLng(((ControlRecord(i).Left * xRatio) \ 100) - 75000)
    Else
      inControl.X1 = CLng((ControlRecord(i).Left * xRatio) \ 100)
    End If
    inControl.Y1 = CLng((ControlRecord(i).Top * yRatio) \ 100)
    If inControl.X2 < 0 Then
      inControl.X2 = CLng(((ControlRecord(i).Width * xRatio) \ 100) - 75000)
    Else
      inControl.X2 = CLng((ControlRecord(i).Width * xRatio) \ 100)
    End If
    inControl.Y2 = CLng((ControlRecord(i).Height * yRatio) \ 100)
  Else
    inControl.Move lLeft, lTop, lWidth, lHeight
    inControl.Move lLeft, lTop, lWidth
    inControl.Move lLeft, lTop
  End If
End Sub
Public Sub ResizeForm(pfrmIn As Form)
  Dim FormControl As Control
  Dim isVisible As Boolean
  Dim StartX, StartY, MaxX, MaxY As Long
  Dim bNew As Boolean
  If Not bRunning Then
    bRunning = True
    If FindForm(pfrmIn) < 0 Then
      bNew = True
    Else
      bNew = False
    End If
    If pfrmIn.Top < 30000 Then
      isVisible = pfrmIn.Visible
      On Error Resume Next
      If Not pfrmIn.MDIChild Then
        On Error GoTo 0
        ' ' pfrmIn.Visible = False
      Else
        If bNew Then
          StartY = pfrmIn.Height
          StartX = pfrmIn.Width
          On Error Resume Next
          For Each FormControl In pfrmIn
            If FormControl.Left + FormControl.Width + 200 > MaxX Then
              MaxX = FormControl.Left + FormControl.Width + 200
            End If
            If FormControl.Top + FormControl.Height + 500 > MaxY Then
              MaxY = FormControl.Top + FormControl.Height + 500
            End If
            If FormControl.X1 + 200 > MaxX Then
              MaxX = FormControl.X1 + 200
            End If
            If FormControl.Y1 + 500 > MaxY Then
              MaxY = FormControl.Y1 + 500
            End If
            If FormControl.X2 + 200 > MaxX Then
              MaxX = FormControl.X2 + 200
            End If
            If FormControl.Y2 + 500 > MaxY Then
              MaxY = FormControl.Y2 + 500
            End If
          Next FormControl
          On Error GoTo 0
          pfrmIn.Height = MaxY
          pfrmIn.Width = MaxX
        End If
        On Error GoTo 0
      End If
      For Each FormControl In pfrmIn
        ResizeControl FormControl, pfrmIn
      Next FormControl
      On Error Resume Next
      If Not pfrmIn.MDIChild Then
        On Error GoTo 0
        pfrmIn.Visible = isVisible
      Else
        If bNew Then
        pfrmIn.Height = StartY
        pfrmIn.Width = StartX
        For Each FormControl In pfrmIn
          ResizeControl FormControl, pfrmIn
        Next FormControl
      End If
    End If
    On Error GoTo 0
  End If
  bRunning = False
End If
End Sub
Public Sub SaveFormPosition(pfrmIn As Form)
  Dim i As Long
  If MaxForm > 0 Then
    For i = 0 To (MaxForm - 1)
      If FormRecord(i).Name = pfrmIn.Name Then
        FormRecord(i).Top = pfrmIn.Top
        FormRecord(i).Left = pfrmIn.Left
        FormRecord(i).Height = pfrmIn.Height
        FormRecord(i).Width = pfrmIn.Width
        Exit Sub
      End If
    Next i
    AddForm (pfrmIn)
  End If
End Sub
Public Sub RestoreFormPosition(pfrmIn As Form)
  Dim i As Long
  If MaxForm > 0 Then
    For i = 0 To (MaxForm - 1)
      If FormRecord(i).Name = pfrmIn.Name Then
        If FormRecord(i).Top < 0 Then
          pfrmIn.WindowState = 2
        ElseIf FormRecord(i).Top < 30000 Then
          pfrmIn.WindowState = 0
          pfrmIn.Move FormRecord(i).Left, FormRecord(i).Top, FormRecord(i).Width, FormRecord(i).Height
        Else
          pfrmIn.WindowState = 1
        End If
          Exit Sub
      End If
    Next i
  End If
End Sub
Public Sub Resize_ALL(Form_Name As Form)
  Dim OBJ As Object
  For Each OBJ In Form_Name
    ResizeControl OBJ, Form_Name
  Next OBJ
End Sub
Public Sub DragForm(frm As Form)
  On Local Error Resume Next
  Call ReleaseCapture
  Call SendMessage(frm.hwnd, WM_NCLBUTTONDOWN, 2, 0)
End Sub

[ 本帖最后由 zeallnln 于 2007-8-7 23:01 编辑 ]

sdh142857

谢谢楼主的建议,辛苦你了!我一定抽时间再整理一下.

我原本也只是在学习有限元法时抱着试一试的想法,用空闲时间随便编写了一个程序,之后也没有再继续扩充和完善了.

我建议各位有兴趣的编程爱好者都来弄一下,把它完善起来.

[ 本帖最后由 sdh142857 于 2007-8-8 17:17 编辑 ]

methane

厉害,  支持sdh142857 把程序 做下去!

请问 在哪里有下载, 想学习一下!

thanks!

流星雨90

支持版主，俺也正在学习中。。。

adolf6269

强烈支持 我也来学习学习
我下个学期才学有限元 这个学期才学了结构力学 用VB编了个结构力学的求解器 和楼主的有限元软件比起来真是小巫见大巫啊

sdh142857

原帖由 adolf6269 于 2008-5-7 09:54 发表
强烈支持 我也来学习学习
我下个学期才学有限元 这个学期才学了结构力学 用VB编了个结构力学的求解器 和楼主的有限元软件比起来真是小巫见大巫啊

呵呵!不必谦虚,以后多交流.