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Form1.frm
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VERSION 5.00
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "COMDLG32.OCX"
Begin VB.Form TwoBodyMode
AutoRedraw = -1 'True
Caption = "二体模式"
ClientHeight = 9990
ClientLeft = 585
ClientTop = 795
ClientWidth = 18285
Icon = "Form1.frx":0000
LinkTopic = "Form1"
ScaleHeight = 9990
ScaleMode = 0 'User
ScaleWidth = 18222.17
Begin VB.CommandButton Command6
Caption = "退出系统"
Height = 315
Left = 255
TabIndex = 40
Top = 9480
Width = 2565
End
Begin MSComDlg.CommonDialog Cmdlog2
Left = 3390
Top = 6990
_ExtentX = 847
_ExtentY = 847
_Version = 393216
End
Begin VB.CommandButton xiugai
Caption = "修改"
Enabled = 0 'False
Height = 420
Left = 555
TabIndex = 38
Top = 4695
Width = 855
End
Begin VB.CommandButton dakai
Caption = "打开"
Height = 420
Left = 555
TabIndex = 37
Top = 5385
Width = 855
End
Begin VB.CommandButton Command5
Caption = "返回三体模式"
Height = 360
Left = 285
TabIndex = 36
Top = 8955
Width = 2550
End
Begin VB.Frame Frame2
Caption = "说明"
Height = 2295
Left = 240
TabIndex = 31
Top = 6390
Width = 2700
Begin VB.Label Label10
Caption = "5.另存数据为上次确定时的数据"
Height = 405
Left = 150
TabIndex = 39
Top = 1815
Width = 2355
End
Begin VB.Label Label9
Caption = "4.右下为2相对于1的运动"
Height = 300
Left = 150
TabIndex = 35
Top = 1500
Width = 2085
End
Begin VB.Label Label8
AutoSize = -1 'True
Caption = "1.天体1为红色，天体2为蓝色"
Height = 180
Left = 150
TabIndex = 34
Top = 345
Width = 2340
End
Begin VB.Label Label7
Caption = "3.右上为1相对于2的运动"
Height = 270
Left = 150
TabIndex = 33
Top = 1125
Width = 2205
End
Begin VB.Label Label6
Caption = "2.中间大框为两天体运动"
Height = 270
Left = 150
TabIndex = 32
Top = 735
Width = 2205
End
End
Begin VB.Frame Frame1
Caption = "控制"
Height = 1305
Left = 120
TabIndex = 26
Top = 195
Width = 2910
Begin VB.CommandButton Command4
Caption = "清除轨迹"
Height = 420
Left = 1560
TabIndex = 30
Top = 765
Width = 1200
End
Begin VB.CommandButton Command3
Caption = "显示轨迹"
Height = 420
Left = 255
TabIndex = 29
Top = 765
Width = 1170
End
Begin VB.CommandButton Command2
Caption = "暂停"
Height = 420
Left = 1560
TabIndex = 28
Top = 285
Width = 1200
End
Begin VB.CommandButton Command1
BackColor = &H8000000D&
Caption = "开始"
Height = 420
Left = 255
TabIndex = 27
Top = 270
Width = 1170
End
End
Begin VB.PictureBox Picture3
AutoRedraw = -1 'True
Height = 5000
Left = 13275
ScaleHeight = 4935
ScaleWidth = 4950
TabIndex = 25
Top = 4980
Width = 5017
Begin VB.Line Line8
X1 = 2595
X2 = 2595
Y1 = 15
Y2 = 4920
End
Begin VB.Line Line7
X1 = -30
X2 = 4950
Y1 = 2535
Y2 = 2535
End
End
Begin VB.PictureBox Picture2
AutoRedraw = -1 'True
Height = 10000
Left = 3195
ScaleHeight = 9945
ScaleWidth = 9975
TabIndex = 24
Top = 0
Width = 10034
Begin VB.Line Line4
X1 = 5010
X2 = 4995
Y1 = 0
Y2 = 9945
End
Begin VB.Line Line3
X1 = 0
X2 = 9975
Y1 = 4960
Y2 = 4960
End
End
Begin VB.TextBox Text12
Height = 285
Left = 1395
TabIndex = 18
Text = "1"
Top = 3930
Width = 1395
End
Begin VB.TextBox Text1
Height = 285
Left = 1395
TabIndex = 15
Text = "1"
Top = 3510
Width = 1395
End
Begin VB.CommandButton lingcun
Caption = "另存"
Height = 420
Left = 1710
TabIndex = 14
Top = 5385
Width = 855
End
Begin VB.TextBox Text11
Height = 270
Left = 1874
TabIndex = 11
Text = "0.4"
Top = 3030
Width = 1104
End
Begin VB.TextBox Text10
Height = 270
Left = 1874
TabIndex = 10
Text = "0"
Top = 2745
Width = 1104
End
Begin VB.TextBox Text9
Height = 270
Left = 1874
TabIndex = 9
Text = "0"
Top = 2415
Width = 1104
End
Begin VB.TextBox Text8
Height = 270
Left = 1874
TabIndex = 8
Text = "-20"
Top = 2100
Width = 1104
End
Begin VB.TextBox Text7
Height = 270
Left = 1875
TabIndex = 7
Text = "1"
Top = 1755
Width = 1104
End
Begin VB.CommandButton queren1
Caption = "确认"
Height = 420
Left = 1695
TabIndex = 6
Top = 4695
Width = 855
End
Begin VB.TextBox Text6
Height = 270
Left = 614
TabIndex = 5
Text = "-0.4"
Top = 3045
Width = 1104
End
Begin VB.TextBox Text5
Height = 270
Left = 614
TabIndex = 4
Text = "0"
Top = 2745
Width = 1104
End
Begin VB.TextBox Text4
Height = 270
Left = 614
TabIndex = 3
Text = "0"
Top = 2415
Width = 1104
End
Begin VB.TextBox Text3
Height = 270
Left = 614
TabIndex = 2
Text = "10"
Top = 2085
Width = 1104
End
Begin VB.TextBox Text2
Height = 270
Left = 614
TabIndex = 1
Text = "1"
Top = 1755
Width = 1104
End
Begin VB.PictureBox Picture1
AutoRedraw = -1 'True
Height = 5000
Left = 13275
ScaleHeight = 4935
ScaleWidth = 4950
TabIndex = 0
Top = -15
Width = 5017
Begin VB.Line Line6
X1 = -30
X2 = 4950
Y1 = 2430
Y2 = 2430
End
Begin VB.Line Line5
X1 = 2565
X2 = 2580
Y1 = -90
Y2 = 4890
End
End
Begin VB.Timer Timer1
Enabled = 0 'False
Interval = 10
Left = 2805
Top = 6180
End
Begin VB.Line Line2
X1 = 14.948
X2 = 3198.97
Y1 = 6135
Y2 = 6135
End
Begin VB.Line Line1
X1 = 29.897
X2 = 3169.073
Y1 = 4425
Y2 = 4425
End
Begin VB.Label Label5
AutoSize = -1 'True
Caption = "速度Vy"
Height = 180
Index = 4
Left = 0
TabIndex = 23
Top = 3090
Width = 540
End
Begin VB.Label Label5
AutoSize = -1 'True
Caption = "速度Vx"
Height = 180
Index = 3
Left = 0
TabIndex = 22
Top = 2775
Width = 540
End
Begin VB.Label Label5
AutoSize = -1 'True
Caption = "坐标Y"
Height = 180
Index = 2
Left = 0
TabIndex = 21
Top = 2445
Width = 450
End
Begin VB.Label Label5
AutoSize = -1 'True
Caption = "坐标X"
Height = 180
Index = 1
Left = 0
TabIndex = 20
Top = 2145
Width = 450
End
Begin VB.Label Label5
AutoSize = -1 'True
Caption = "质量M："
Height = 180
Index = 0
Left = 0
TabIndex = 19
Top = 1785
Width = 630
End
Begin VB.Label Label4
AutoSize = -1 'True
Caption = "迭代步长dt:"
Height = 180
Left = 375
TabIndex = 17
Top = 3960
Width = 990
End
Begin VB.Label Label3
Caption = "引力常量G:"
Height = 345
Left = 450
TabIndex = 16
Top = 3540
Width = 945
End
Begin VB.Label Label2
Caption = "天体2"
Height = 255
Left = 2175
TabIndex = 13
Top = 1530
Width = 1050
End
Begin VB.Label Label1
Caption = "天体1"
Height = 210
Left = 930
TabIndex = 12
Top = 1500
Width = 645
End
End
Attribute VB_Name = "TwoBodyMode"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim b1 As body, b2 As body
Dim oldb1 As body, oldb2 As body
Dim oldG As Single
Dim olddt As Single
Dim guiji As Boolean
Private Sub Command1_Click()
Timer1.Enabled = True
Command1.Enabled = False
Command2.Enabled = True
ChangeEnabled (False)
End Sub
Private Sub Command2_Click()
Timer1.Enabled = False
Command1.Enabled = True
Command2.Enabled = False
ChangeEnabled (True)
End Sub
Private Sub Command3_Click()
guiji = Not guiji
If Command3.Caption = "显示轨迹" Then
Command3.Caption = "隐藏轨迹"
Else
Command3.Caption = "显示轨迹"
End If
End Sub
Private Sub Command4_Click()
Picture1.Cls
Picture2.Cls
Picture3.Cls
End Sub
Private Sub Command5_Click()
Unload Me
End Sub
Private Sub Command6_Click()
Dim i As Integer
i = MsgBox("是否保存？", vbYesNoCancel)
If i = 6 Then
Call lingcun_Click
End
Else: If i = 7 Then End
If i = 2 Then
Exit Sub
End If
End If
End Sub
Private Sub dakai_Click()
Dim duqu As String
Command1.Enabled = True
Command2.Enabled = False
Timer1.Enabled = False
'CancelError 为 True。
On Error GoTo ErrHandler
Cmdlog2.InitDir = App.path & "\例子"
'设置过滤器。
Cmdlog2.Filter = "Twobody_Files (*.twb)|*.twb"
'指定缺省过滤器。
Cmdlog2.FilterIndex = 2
'显示“打开”对话框。
Cmdlog2.ShowOpen
'调用打开文件的过程。
Open Cmdlog2.FileName For Input As #1
Line Input #1, duqu
Text1.Text = duqu
Line Input #1, duqu
Text12.Text = duqu
Line Input #1, duqu
Text2.Text = duqu
Line Input #1, duqu
Text3.Text = duqu
Line Input #1, duqu
Text4.Text = duqu
Line Input #1, duqu
Text5.Text = duqu
Line Input #1, duqu
Text6.Text = duqu
Line Input #1, duqu
Text7.Text = duqu
Line Input #1, duqu
Text8.Text = duqu
Line Input #1, duqu
Text9.Text = duqu
Line Input #1, duqu
Text10.Text = duqu
Line Input #1, duqu
Text11.Text = duqu
'加载
Loading
Close 1
Exit Sub
ErrHandler:
'用户按“取消”按钮。
Exit Sub
End Sub
Private Sub Form_Load()
With b1
.Posi.x = 10
.Posi.y = 0
.Posi.z = 0
.M = 2
.V.x = 0
.V.y = -Sqr(10) / 30
.V.z = 0
End With
With b2
.Posi.x = -20
.Posi.y = 0
.Posi.z = 0
.M = 1
.V.x = 0
.V.y = 2 * Sqr(10) / 30
.V.z = 0
End With
g = 1
dt = 1
Picture1.Scale (-100, 100)-(100, -100)
Picture2.Scale (-100, 100)-(100, -100)
Picture3.Scale (-100, 100)-(100, -100)
Line3.X1 = -100: Line3.Y1 = 0: Line3.X2 = 100: Line3.Y2 = 0
Line4.X1 = 0: Line4.Y1 = -100: Line4.X2 = 0: Line4.Y2 = 100
Line5.X1 = -100: Line5.Y1 = 0: Line5.X2 = 100: Line5.Y2 = 0
Line6.X1 = 0: Line6.Y1 = -100: Line6.X2 = 0: Line6.Y2 = 100
Line7.X1 = -100: Line7.Y1 = 0: Line7.X2 = 100: Line7.Y2 = 0
Line8.X1 = 0: Line8.Y1 = -100: Line8.X2 = 0: Line8.Y2 = 100
Command2.Enabled = False
'Picture1.Line (-100, 0)-(100, 0), vbRed
'Picture1.Line (0, 100)-(0, -100), vbRed
'Picture2.Line (-100, 0)-(100, 0), vbRed
'Picture2.Line (0, 100)-(0, -100), vbRed
'Picture3.Line (-100, 0)-(100, 0), vbRed
'Picture3.Line (0, 100)-(0, -100), vbRed
Call suggest
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
Dim i As Integer
i = MsgBox("是否保存？", vbYesNoCancel)
If i = 6 Then
Call lingcun_Click
Frmmain.Show
Else: If i = 7 Then Frmmain.Show
If i = 2 Then
Cancel = 1
Exit Sub
End If
End If
End Sub
Private Sub lingcun_Click()
On Error GoTo ErrHandler
Cmdlog2.InitDir = App.path & "\例子"
Cmdlog2.Filter = "Twobody_Files (*.twb)|*.twb"
Cmdlog2.ShowSave
Open Cmdlog2.FileName For Output As #2
Print #2, Text1.Text
Print #2, Text12.Text
Print #2, Text2.Text
Print #2, Text3.Text
Print #2, Text4.Text
Print #2, Text5.Text
Print #2, Text6.Text
Print #2, Text7.Text
Print #2, Text8.Text
Print #2, Text9.Text
Print #2, Text10.Text
Print #2, Text11.Text
Close 2
Exit Sub
ErrHandler:
'用户按“取消”按钮。
Exit Sub
End Sub
Private Sub Picture1_DblClick()
Picture1.Circle (CurrentX, CurrentY), 10, vbRed
End Sub
Private Sub queren1_Click()
Dim judgeM1 As Single
Dim judgeM2 As Single
judgeM1 = Val(Text2.Text)
judgeM2 = Val(Text7.Text)
If judgeM1 <> 0 And judgeM2 <> 0 Then
If jiance(b1, b2) = True Then
Loading
Command1.Enabled = True
Command2.Enabled = False
queren1.Enabled = False
xiugai.Enabled = True
Give
ChangeEnabled (False)
Else
MsgBox "两天体位置重叠!", , "警告!"
End If
Else
MsgBox "质量不能为0或为负值！", , "警告!"
End If
End Sub
Private Sub queren2_Click()
g = Val(Text1.Text)
dt = Val(Text12.Text)
End Sub
Private Sub Timer1_Timer()
Call Count_2Body(b1, b2, g, dt)
Call suggest
Call pengzhaung2
If guiji = True Then
Picture2.PSet (b1.Posi.x, b1.Posi.y), vbRed
Picture2.PSet (b2.Posi.x, b2.Posi.y), vbBlue
Picture1.PSet (b1.Posi.x - b2.Posi.x, b1.Posi.y - b2.Posi.y), vbRed
Picture3.PSet (b2.Posi.x - b1.Posi.x, b2.Posi.y - b1.Posi.y), vbBlue
Else
Picture1.Cls
Picture2.Cls
Picture3.Cls
Picture2.Circle (b1.Posi.x, b1.Posi.y), 1, vbRed
Picture2.Circle (b2.Posi.x, b2.Posi.y), 1, vbBlue
Picture1.Circle (b1.Posi.x - b2.Posi.x, b1.Posi.y - b2.Posi.y), 1, vbRed
Picture3.Circle (b2.Posi.x - b1.Posi.x, b2.Posi.y - b1.Posi.y), 1, vbBlue
End If
End Sub
Private Sub suggest()
Text2.Text = Str(b1.M)
Text3.Text = Str(b1.Posi.x)
Text4.Text = Str(b1.Posi.y)
Text5.Text = Str(b1.V.x)
Text6.Text = Str(b1.V.y)
Text7.Text = Str(b2.M)
Text8.Text = Str(b2.Posi.x)
Text9.Text = Str(b2.Posi.y)
Text10.Text = Str(b2.V.x)
Text11.Text = Str(b2.V.y)
Text1.Text = Str(g)
Text12.Text = Str(dt)
End Sub
Private Sub ChangeEnabled(bo As Boolean)
Text2.Enabled = bo
Text3.Enabled = bo
Text4.Enabled = bo
Text5.Enabled = bo
Text6.Enabled = bo
Text7.Enabled = bo
Text8.Enabled = bo
Text9.Enabled = bo
Text10.Enabled = bo
Text11.Enabled = bo
xiugai.Enabled = Not bo
queren1.Enabled = bo
End Sub
Private Sub Loading()
g = Val(Text1.Text)
dt = Val(Text12.Text)
b1.M = Val(Text2.Text)
b1.Posi.x = Val(Text3.Text)
b1.Posi.y = Val(Text4.Text)
b1.V.x = Val(Text5.Text)
b1.V.y = Val(Text6.Text)
b2.M = Val(Text7.Text)
b2.Posi.x = Val(Text8.Text)
b2.Posi.y = Val(Text9.Text)
b2.V.x = Val(Text10.Text)
b2.V.y = Val(Text11.Text)
End Sub
Private Sub Give()
oldb1 = b1
oldb2 = b2
oldG = g
olddt = dt
End Sub
Private Sub xiugai_Click()
Command1.Enabled = False
Command2.Enabled = False
Timer1.Enabled = False
queren1.Enabled = True
xiugai.Enabled = False
Text1.Enabled = True
Text2.Enabled = True
Text3.Enabled = True
Text4.Enabled = True
Text5.Enabled = True
Text6.Enabled = True
Text7.Enabled = True
Text8.Enabled = True
Text9.Enabled = True
Text10.Enabled = True
Text11.Enabled = True
Text12.Enabled = True
End Sub
Private Sub pengzhaung2()
Dim i As Single
i = (b1.Posi.x - b2.Posi.x) ^ 2 + (b1.Posi.y - b2.Posi.y) ^ 2
i = Sqr(i)
If i <= 2 Then
MsgBox "两天体相撞！", 0, "提示"
Timer1.Enabled = False
End If
End Sub
Private Function jiance(b1 As body, b2 As body) As Boolean
Dim dd12 As Single
dd12 = (b1.Posi.x - b2.Posi.x) ^ 2 + (b1.Posi.y + b2.Posi.y) ^ 2
If dd12 = 0 Then
jiance = False
Else
jiance = True
End If
End Function