Joined: 07 Dec 2005 Posts: 14 Location: iran- tehran
Posted: Sun Jan 01, 2006 12:03 am Post subject: نحوه حركت نمايش سيگنال روي نمودار
سلام
به چه صورتي ميشه كه ما سيگنالي رو كه روي نمودار نمايش ميديم حركت بديم؟
(محيط نمايش نمودار از add كردن كامپوننت mathwork:strip chat روي فرم قرار ميگيره)
من خودم اين پيشنهاد رو دارم كه از سمت راست پيكسلها رو پاك كنيم و از سمت چپ شيفت بديم و در سمت راست كه پاك كرديم مقدار چديد رو بديم كه نمودار بعدي وارد بشه
در ضمن مقدار دهي به اين پيكسلها با چه دستوريه؟
ممنون
سلام
یه پروژه ی خوب
کد زیر رو در notepad کپی کنید و با پسوند .cls ذخیره کنید
VERSION 1.0 CLASS
BEGIN
MultiUse = -1 'True
Persistable = 0 'NotPersistable
DataBindingBehavior = 0 'vbNone
DataSourceBehavior = 0 'vbNone
MTSTransactionMode = 0 'NotAnMTSObject
END
Attribute VB_Name = "Cls_diagram"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Public HorzSplits As Long
Public VertSplits As Long
Public Max As Single 'Max value
Private ValueArray() As Single 'Array to hold values
Private mem_LineColor As Long
Private mem_GridColor As Long
Private mem_ShowGrid As Boolean
Private mem_pBox As PictureBox
Private mem_pBoxHeight As Long
Private mem_pBoxWidth As Long
Private mem_movingGrid As Boolean
Private StartPosition As Long 'Needed to not to display first zero values when starting a new diagram
Private GridPosition As Long
Public Enum ENUM_DIAGRAMTYPE
TYPE_LINE = 0
TYPE_POINT = 1
End Enum
Public DiagramType As ENUM_DIAGRAMTYPE 'Type of diagram (line or point)
Const const_tolerance = 0.0001 'Used to fix last line tolerance problem in some cases
Public Function InitDiagram(pBox As PictureBox, LineColor As Long, ShowGrid As Boolean, Optional GridColor As Variant, Optional MovingGrid As Variant)
'If user didn't give a grid color, we are using default (dark green) color
If IsMissing(GridColor) Then
mem_GridColor = RGB(0, 130, 0) 'Dark green
Else:
mem_GridColor = GridColor
End If
'If user didn't give a movingGrid parameter, we are using default (off)
If IsMissing(MovingGrid) Then
mem_movingGrid = False
Else:
mem_movingGrid = MovingGrid
End If
Set mem_pBox = pBox 'Save picturebox, so we dont need to ask it again
'Allocate array to hold all diagram values (value per pixel)
ReDim ValueArray(mem_pBoxWidth - 1)
StartPosition = mem_pBoxWidth - 1
GridPosition = 0
End Function
Public Sub AddValue(value As Single)
Dim l As Long
'Check if InitDiagram has not been executed yet
If mem_pBox Is Nothing Then
'Failed! (exit function)
Exit Sub
End If
'Move all values from array one position lower
For l = 1 To mem_pBoxWidth - 1
ValueArray(l - 1) = ValueArray(l)
Next
'Max can't be 0 or smaller
If Max <= 0 Then Max = 1
'Add new value to the last element of array
ValueArray(l - 1) = mem_pBoxHeight - ((value / Max) * mem_pBoxHeight)
If StartPosition >= 1 Then StartPosition = StartPosition - 1
GridPosition = GridPosition - 1
End Sub
Public Sub RePaint()
Dim x As Single
Dim y As Single
Dim l As Long
'Check if InitDiagram has not been executed yet
If mem_pBox Is Nothing Then
'Failed! (exit sub)
Exit Sub
End If
'Create background image
'First clear hole picture box, then draw grid if set, then draw diagram
mem_pBox.Cls 'Clear picturebox
'Draw grid if set
If (mem_ShowGrid) Then
mem_pBox.ForeColor = mem_GridColor
'Draw vertical lines with or without using gridposition
If (mem_movingGrid) Then
For x = GridPosition To mem_pBoxWidth - 1 Step ((mem_pBoxWidth - 1) / (VertSplits + 1)) - const_tolerance
mem_pBox.Line (x, 0)-(x, mem_pBoxHeight)
Next
Else:
For x = 0 To mem_pBoxWidth - 1 Step ((mem_pBoxWidth - 1) / (VertSplits + 1)) - const_tolerance
mem_pBox.Line (x, 0)-(x, mem_pBoxHeight)
Next
End If
For y = 0 To mem_pBoxHeight - 1 Step ((mem_pBoxHeight - 1) / (HorzSplits + 1)) - const_tolerance
mem_pBox.Line (0, y)-(mem_pBoxWidth, y)
Next
'Reset gridposition, when first line is not visible anymore
If GridPosition <= -Int((mem_pBoxWidth - 1 / (HorzSplits + 1))) Then
GridPosition = 0
End If
End If
'Draw line diagram only if theres 2 or more values defined
If StartPosition <= mem_pBoxWidth - 1 Then
mem_pBox.ForeColor = mem_LineColor
Select Case DiagramType
Case TYPE_LINE
For l = StartPosition + 1 To mem_pBoxWidth - 2
mem_pBox.Line (l, ValueArray(l))-(l + 1, ValueArray(l + 1))
Next
Case TYPE_POINT
For l = StartPosition + 1 To mem_pBoxWidth - 2
mem_pBox.PSet (l + 1, ValueArray(l + 1))
Next
End Select
End If
End Sub
کد زیر رو هم با پسوند .frm ذخیره کنید بعد هر دو فایل رو در یک پروژه ی vb اضافه کنید تا برنامه به درستی کار کند
VERSION 5.00
Begin VB.Form Form_main
Caption = "Pure VB diagram monitors"
ClientHeight = 5175
ClientLeft = 1800
ClientTop = 1965
ClientWidth = 6090
LinkTopic = "Form1"
ScaleHeight = 5175
ScaleWidth = 6090
Begin VB.Frame Frame2
Caption = "Point"
Height = 2235
Left = 120
TabIndex = 3
Top = 2400
Width = 5835
Begin VB.PictureBox Picture_point2
BackColor = &H00000000&
BorderStyle = 0 'None
CausesValidation= 0 'False
ClipControls = 0 'False
Height = 1695
Left = 2940
ScaleHeight = 113
ScaleMode = 3 'Pixel
ScaleWidth = 181
TabIndex = 6
Top = 300
Width = 2715
End
Begin VB.PictureBox Picture_point
BackColor = &H00000000&
BorderStyle = 0 'None
CausesValidation= 0 'False
ClipControls = 0 'False
Height = 1695
Left = 180
ScaleHeight = 113
ScaleMode = 3 'Pixel
ScaleWidth = 181
TabIndex = 4
Top = 300
Width = 2715
End
End
Begin VB.Timer Timer1
Interval = 500
Left = 3720
Top = 4680
End
Begin VB.CommandButton Command1
Caption = "Start"
Height = 315
Left = 4380
TabIndex = 2
Top = 4740
Width = 1575
End
Begin VB.Frame Frame1
Caption = "Line"
Height = 2235
Left = 120
TabIndex = 0
Top = 120
Width = 5835
Begin VB.PictureBox Picture_line2
BackColor = &H00000000&
BorderStyle = 0 'None
CausesValidation= 0 'False
ClipControls = 0 'False
Height = 1695
Left = 2940
ScaleHeight = 113
ScaleMode = 3 'Pixel
ScaleWidth = 181
TabIndex = 5
Top = 300
Width = 2715
End
Begin VB.PictureBox Picture_line
BackColor = &H00000000&
BorderStyle = 0 'None
CausesValidation= 0 'False
ClipControls = 0 'False
Height = 1695
Left = 180
ScaleHeight = 113
ScaleMode = 3 'Pixel
ScaleWidth = 181
TabIndex = 1
Top = 300
Width = 2715
End
End
End
Attribute VB_Name = "Form_main"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
''''''''''''''''''''''''''''''''''''
'Simple diagrams
'Just add new reference to cls_diagram!
'By Sami Riihilahti
'Free to use at any case!
''''''''''''''''''''''''''''''''''''
Public linediagram As New Cls_linediagram
Public linediagram As New Cls_diagram
Public linediagram2 As New Cls_diagram
Public pointdiagram As New Cls_diagram
Public pointdiagram2 As New Cls_diagram
Public tancounter As Single 'We are using this just to create tan diagrams
Private Sub Command1_Click()
'Create all 4 diagrams. See what options we have when calling .InitDiagram()
'.InitDiagram picturebox, linecolor, showgrid, gridcolor, movinggrid
'picturebox = the picturebox in which to add the diagram
'linecolor = line color
'showgrid = grid ON/OFF
'gridcolor = [optional] grid color (default=dark green)
'movinggrid = [optional] boolean true/false of moving grid (default=false)
With linediagram
.InitDiagram Picture_line, RGB(0, 255, 0), True
.Max = 10
.HorzSplits = 9
.VertSplits = 9
.DiagramType = TYPE_LINE
.RePaint
End With
With pointdiagram
.InitDiagram Picture_point, RGB(0, 255, 0), True
.Max = 20
.HorzSplits = 9
.VertSplits = 9
.DiagramType = TYPE_POINT
.RePaint
End With
With linediagram2
.InitDiagram Picture_line2, RGB(255, 255, 0), True, , True
.Max = 100
.HorzSplits = 9
.VertSplits = 9
.DiagramType = TYPE_LINE
.RePaint
End With
With pointdiagram2
.InitDiagram Picture_point2, RGB(0, 255, 255), True, RGB(100, 0, 0), True
.Max = 10
.HorzSplits = 9
.VertSplits = 9
.DiagramType = TYPE_POINT
.RePaint
End With
End Sub
Private Sub Picture_line_Paint()
linediagram.RePaint
End Sub
Private Sub Picture_line2_Click()
linediagram2.RePaint
End Sub
Private Sub Picture_point_Paint()
pointdiagram.RePaint
End Sub
Private Sub Picture_point2_Click()
pointdiagram.RePaint
End Sub
Private Sub Timer1_Timer()
'Just randomize a new value in this sample
Dim value As Single
tancounter = tancounter + 0.1
value = Tan(tancounter) + 2
linediagram.AddValue value
linediagram2.AddValue value
pointdiagram.AddValue value
pointdiagram2.AddValue value
linediagram.RePaint
linediagram2.RePaint
pointdiagram.RePaint
pointdiagram2.RePaint
End Sub
Joined: 07 Dec 2005 Posts: 14 Location: iran- tehran
Posted: Mon Jan 02, 2006 4:34 pm Post subject:
سلام
محيط سياه نمايش توسط چه كنترلي روي فرم قرار ميگيره و اطلاعا ت سيگنال با چه دستوري نمايش داده ميشه؟ در ضمن اين پروژه براي نمايش چه سيگنالي بوده؟
ممنون از راهنماييتون
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