📄 form23.frm
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VERSION 5.00
Object = "{A964BDA3-3E93-11CF-9A0F-9E6261DACD1C}#2.0#0"; "RESIZE32.OCX"
Begin VB.Form Form23
Caption = "指数分布最大反射系数模频率特性曲线"
ClientHeight = 4980
ClientLeft = 60
ClientTop = 345
ClientWidth = 7410
LinkTopic = "Form23"
MDIChild = -1 'True
ScaleHeight = 4980
ScaleWidth = 7410
Begin ResizeLibCtl.ReSize ReSize1
Left = 6990
Top = 600
_Version = 131072
_ExtentX = 741
_ExtentY = 741
_StockProps = 0
Enabled = -1 'True
FormMinWidth = 0
FormMinHeight = 0
FormDesignHeight= 4980
FormDesignWidth = 7410
End
Begin VB.PictureBox Picture1
AutoRedraw = -1 'True
BackColor = &H80000009&
DrawWidth = 2
Height = 4200
Left = 650
ScaleHeight = 276
ScaleMode = 3 'Pixel
ScaleWidth = 416
TabIndex = 0
Top = 400
Width = 6300
End
Begin VB.Label Label14
Caption = "6π"
BeginProperty Font
Name = "宋体"
Size = 18
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 5190
TabIndex = 14
Top = 4590
Width = 525
End
Begin VB.Label Label13
Caption = "5π"
BeginProperty Font
Name = "宋体"
Size = 18
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 4395
TabIndex = 13
Top = 4590
Width = 525
End
Begin VB.Label Label12
Caption = "3π"
BeginProperty Font
Name = "宋体"
Size = 18
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 2820
TabIndex = 12
Top = 4590
Width = 525
End
Begin VB.Label Label11
Caption = "π"
BeginProperty Font
Name = "宋体"
Size = 18
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 1230
TabIndex = 11
Top = 4590
Width = 525
End
Begin VB.Label Label10
Caption = "2π"
BeginProperty Font
Name = "宋体"
Size = 18
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 2025
TabIndex = 10
Top = 4590
Width = 525
End
Begin VB.Label Label9
Caption = "4π"
BeginProperty Font
Name = "宋体"
Size = 18
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 3600
TabIndex = 9
Top = 4590
Width = 525
End
Begin VB.Label Label8
Caption = "0.2"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 345
Left = 120
TabIndex = 8
Top = 3484
Width = 525
End
Begin VB.Label Label7
Caption = "0.6"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 345
Left = 120
TabIndex = 7
Top = 1942
Width = 525
End
Begin VB.Label Label6
Caption = "0.8"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 345
Left = 120
TabIndex = 6
Top = 1171
Width = 525
End
Begin VB.Label Label5
Caption = "0.4"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 345
Left = 120
TabIndex = 5
Top = 2713
Width = 525
End
Begin VB.Label Label1
Caption = "0.0"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 345
Left = 120
TabIndex = 4
Top = 4255
Width = 525
End
Begin VB.Label Label4
Caption = "1.0"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 345
Left = 120
TabIndex = 3
Top = 400
Width = 525
End
Begin VB.Label Label3
Caption = "2|Γm|/Ln(Zl/Zin)"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Left = 0
TabIndex = 2
Top = 90
Width = 2325
End
Begin VB.Label Label2
Caption = "2πλ/λg"
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 315
Left = 6270
TabIndex = 1
Top = 4650
Width = 1275
End
End
Attribute VB_Name = "Form23"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Function functioneval1(ByVal X As Double) As Double
If X = 0 Then
functioneval1 = 0
Else
functioneval1 = -Abs(Sin(X) / X)
End If
End Function
Private Sub Form_Load()
Dim pi As Double
pi = 4 * Atn(1)
Dim t, xmin, xmax, ymin, ymax, xpixels, functionval As Double
Dim i As Integer
ymin = 1E+101
ymax = -1E+101
xmin = 0
xmax = 8 * pi
Form23.Picture1.Cls
Form23.Picture1.ScaleMode = 3
xpixels = Form23.Picture1.ScaleWidth
For i = 1 To xpixels
t = xmin + (xmax - xmin) * i / xpixels
functionval = functioneval1(t)
If functionval > ymax Then ymax = functionval
If functionval < ymin Then ymin = functionval
Next
Form23.Picture1.Scale (xmin, ymin)-(xmax, ymax)
Form23.Picture1.FillColor = RGB(0, 0, 255)
Form23.Picture1.PSet (xmin, functioneval1(xmin))
For i = 0 To xpixels
t = xmin + (xmax - xmin) * i / xpixels
Form23.Picture1.Line -(t, functioneval1(t))
Next
Me.Left = 0
Me.Top = 0
Me.Width = 7530
Me.Height = 5385
End Sub
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