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创建Graphics对象,可以调用CreateGraphics()直接做图也可以创建Bitmap对象然后调用Graphics.FromBitmap(b)得到Graphics G
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G.Clear(Colors.Black)
G.DrawLine(Pens.White, 画线的坐标
自己用GDI+画的 无论什么什么尺寸的picturebox都行
不过别太小了o(∩_∩)o
代码放在哪里自己决定啊
最好是放在 picturebox的resize时间里
每次picturebox大小改变都重画一次坐标
Dim b As New Bitmap(PictureBox1.Width, PictureBox1.Height)
Dim g As Graphics = Graphics.FromImage(b)
g.Clear(Color.White)
Dim p As New Pen(Color.Black)
p.EndCap = Drawing2D.LineCap.ArrowAnchor
g.DrawLine(p, 30, PictureBox1.Height - 30, 30, 30)
g.DrawLine(p, 30, PictureBox1.Height - 30, PictureBox1.Width - 30, PictureBox1.Height - 30)
Dim i As Integer
Dim bs As New SolidBrush(Color.Green)
Dim po As New Point
po.X = 0
po.Y = PictureBox1.Height - 35
For i = 700 To 1000 Step 50
g.DrawString(i, Me.Font, bs, po.X, po.Y)
g.DrawLine(p, po.X + 28, po.Y + 5, po.X + 30, po.Y + 5)
po.Y -= (PictureBox1.Height - 100) / 6
Next
po.X = 30
po.Y = PictureBox1.Height - 30
For i = 0 To 40 Step 5
g.DrawString(i, Me.Font, bs, po.X, po.Y + 5)
g.DrawLine(p, po.X, po.Y + 2, po.X, po.Y)
po.X += (PictureBox1.Width - 100) / 8
Next
PictureBox1.Image = b
太好玩啦~~~~~哈哈 终于完工啦
窗体上放一个textbox 两条line 一个label 代码粘贴 运行 即见效果
'*************************************************************************
'**工程名称:平面座标
'**说 明:小鸟工作室 版权所有2007 - 2008(C)1
'**创 建 人:秋色烽火
'**日 期:2007-12-18 14:08:15
'**版 本:V1.0.0
'*************************************************************************
Const DPITCH = 300 '点距
Dim WithEvents oControlx1 As Line
Dim WithEvents oControlx2 As Line
Dim WithEvents oControly1 As Line
Dim WithEvents oControly2 As Line
Dim WithEvents oControlShape As Shape
Dim WithEvents oControlPixinfo As Label
Dim DPCound%, PixID%, PixBackColor, dotx%, doty%
Private Sub Form_Load()
Me.Caption = "平面座标 - by 秋色烽火[小鸟工作室]"
Me.Height = 9300
Me.Width = 9300
Line1.X1 = 150
Line1.X2 = Me.Width - 150
Line1.Y1 = Me.Height / 2
Line1.Y2 = Line1.Y1
Line2.Y1 = 150
Line2.Y2 = Me.Height - 150
Line2.X1 = Me.Width / 2
Line2.X2 = Line2.X1
Label1.Width = 255
Label1.Height = 255
Label1.AutoSize = ture
Label1.BackStyle = 0
Label1.FontItalic = True
Label1.FontBold = True
Label1.FontSize = 10
Label1.ForeColor = HFF
Label1.Caption = "O"
Label1.Left = Me.Width / 2 + Label1.Width - 100
Label1.Top = Me.Height / 2 - Label1.Height
Text1.Text = ""
Call AddLine
Text1.ToolTipText = "请输入整数座标(x,y) 中间用英文逗号分隔~~~,双击文本框或回车开始标注" vbCrLf " 右击显示帮助信息 " vbCrLf "输入座标请介乎于" DPCound \ 2 "至" -1 * DPCound \ 2 "之间~~"
PixID = 0
End Sub
Sub AddLine()
DPCound = (Me.Width - 300) / DPITCH - 2
For i = DPCound \ 2 + 1 To DPCound
Set oControlx1 = Controls.Add("VB.Line", "lineW" i, Me)
Set oControlx2 = Controls.Add("VB.Line", "lineW" DPCound \ 2 - (i - (DPCound \ 2 + 1)), Me)
Set oControly1 = Controls.Add("VB.Line", "lineH" i, Me)
Set oControly2 = Controls.Add("VB.Line", "lineH" DPCound \ 2 - (i - (DPCound \ 2 + 1)), Me)
With oControlx1
.Visible = True '显示
.X1 = Me.Width / 2 + (i - DPCound \ 2) * DPITCH
.X2 = Me.Width / 2 + (i - DPCound \ 2) * DPITCH
.Y1 = Me.Height / 2 - 60
.Y2 = Me.Height / 2 + 60
End With
With oControlx2
.Visible = True '显示
.X1 = Me.Width / 2 - (i - DPCound \ 2) * DPITCH
.X2 = Me.Width / 2 - (i - DPCound \ 2) * DPITCH
.Y1 = Me.Height / 2 - 60
.Y2 = Me.Height / 2 + 60
End With
With oControly1
.Visible = True '显示
.Y1 = Me.Height / 2 + (i - DPCound \ 2) * DPITCH
.Y2 = Me.Height / 2 + (i - DPCound \ 2) * DPITCH
.X1 = Me.Width / 2 - 60
.X2 = Me.Width / 2 + 60
End With
With oControly2
.Visible = True '显示
.Y1 = Me.Height / 2 - (i - DPCound \ 2) * DPITCH
.Y2 = Me.Height / 2 - (i - DPCound \ 2) * DPITCH
.X1 = Me.Width / 2 - 60
.X2 = Me.Width / 2 + 60
End With
Next
End Sub
Sub AddPix()
If InStr(Text1.Text, ",") 0 Then
If IsNumeric(Mid$(Text1.Text, 1, InStr(Text1.Text, ",") - 1)) And IsNumeric(Mid$(Text1.Text, InStr(Text1.Text, ",") + 1, Len(Text1.Text))) Then
If CInt(Mid$(Text1.Text, 1, InStr(Text1.Text, ",") - 1)) = DPCound \ 2 And CInt(Mid$(Text1.Text, 1, InStr(Text1.Text, ",") - 1)) = -1 * DPCound \ 2 Then
PixID = PixID + 1
Set oControlShape = Controls.Add("VB.Shape", "Pix" PixID, Me)
Set oControlPixinfo = Controls.Add("VB.Label", "Pixinfo" PixID, Me)
With oControlShape
.Visible = True '显示
.Shape = 3
'.BorderColor = HFF
.BackColor = HFF 'RGB(Int(Rnd * 255), Int(Rnd * 255), Int(Rnd * 255)) 'HFF
.BackStyle = 1
.BorderStyle = 0
.Width = 75
.Height = 75
.Left = Me.Width / 2 + CInt(Mid$(Text1.Text, 1, InStr(Text1.Text, ",") - 1)) * DPITCH
.Top = Me.Height / 2 - CInt(Mid$(Text1.Text, InStr(Text1.Text, ",") + 1, Len(Text1.Text))) * DPITCH
dotx = .Left
doty = .Top
PixBackColor = .BackColor
End With
With oControlPixinfo
.Visible = True '显示
.BackStyle = 0
' .FontItalic = True
'.FontBold = True
.FontSize = 9
.ForeColor = HFF 'PixBackColor 'HFF
.Caption = "[" PixID "]" CStr(CInt(Mid$(Text1.Text, 1, InStr(Text1.Text, ",") - 1))) "," CInt(Mid$(Text1.Text, InStr(Text1.Text, ",") + 1, Len(Text1.Text)))
.Width = 1000
.Height = 255
.Left = dotx
.Top = doty - .Height
.AutoSize = ture
End With
Text1.Text = ""
Else
MsgBox "输入座标请介乎于" DPCound \ 2 "至" -1 * DPCound \ 2 "之间~~", , "错误"
Text1.Text = ""
End If
Else
MsgBox "座标请使用数字输入", , "错误"
Text1.Text = ""
End If
Else
MsgBox "输入的座标请使用英文逗号 , 进行分隔", , "错误"
Text1.Text = ""
End If
End Sub
Sub init()
If PixID 0 Then
If MsgBox("确实要清空所有标注点吗?", vbOKCancel + vbInformation + vbDefaultButton2 + vbMsgBoxSetForeground + vbSystemModal, "信息!") = vbOK Then
For i = 1 To PixID
Controls.Remove "Pix" i
Controls.Remove "Pixinfo" i
Next
PixID = 0
End If
End If
End Sub
Private Sub Text1_DblClick()
Call AddPix
End Sub
Private Sub Text1_KeyDown(KeyCode As Integer, Shift As Integer)
If KeyCode = 13 Then
Call AddPix
End If
End Sub
Private Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
If Button = 2 Then
MsgBox "请输入整数座标(x,y) 中间用英文逗号分隔~~~,双击文本框或回车开始标注" vbCrLf "输入座标请介乎于" DPCound \ 2 "至" -1 * DPCound \ 2 "之间~~" vbCrLf "中键清空所有创建的座标", , "帮助"
End If
If Button = 4 Then
Call init
End If
End Sub
'好玩的东东
'****************************
'如果加上下面的就好罗
'定时设为500
'Dim a, b As Integer
'a = 14
'b = 14
'Private Sub Timer1_Timer()
'Text1.Text = a "," b
'a = a - 1
'b = b - 1
'Call Text1_KeyDown(13, 1)
'End Sub
'***************************
使用Picturebox。
使用Picturebox来比较合适,picture1.scale (x1,y1)-(x2,y2)。
(x1,y1):定义的左上角坐标值
(x2,y2):定义的右下角坐标值
Frame只能当容起诉来用,picture控件比较适合。不过习惯了计算机绘画作图的人都是喜欢从屏幕左上角开始第四象限坐标系的.,单位也喜欢用像素。
可以考虑使用图表控件,比如MSCHART或者TEECHART控件,可以减少一定的工作量,MSCHART是VB6自带的控件,在组件项里找一下加上去就可以了,TEECHART是TEEMA公司出品的控件,网上有破解版,如果图形不复杂使用5.0版即可。
坐标原点默认是左上角,可以改变的,FORM1.SCALE
(X1,Y1)-(X2,Y2)横坐标范围是从X1到X2,纵坐标是从Y1到Y2,若坐标设在窗体中间,则FORM1.SCALE
(-ME.WIDTH/2,-ME.HEIGTH/2)-(ME.WIDTH/2,ME.HEIGTH/2),画横坐标ME.LINE
(-ME.WIDTH/2,0)-(ME.WIDTH/2,0)
画纵坐标FORM1.LINE
(0,-ME.HEIGTH/2,0,ME.HEIGTH/2)
scale(x1,y1)-(x2,y2)
你只要记住,这里的x1,y1是左上角的坐标,x2,y2是右下角的坐标,通过这两个点的坐标设定,就可以决定坐标原点的位置以及坐标轴的方向了,比如
Scale (-300,200)-(300,-200)
以上是把坐标原点设在窗体中心,x轴长600,方向从左到右,y轴长400,方向从下向上。
Scale (800,0)-(0,600)
以上是把坐标原点设在窗体右上角,x轴长800,方向从右到左,y轴长600,方向从上向下。
下面说坐标轴和原点的标示法:
假定自定义坐标设为:
Scale (-300, 200)-(300, -200)
则
Line (-300, 0)-(300, 0) '画x轴
Line (0, 200)-(0, -200) '画y轴
CurrentX = 290
CurrentY = -5
Print "x" '标示x轴
CurrentX = 5
CurrentY = 200
Print "y" '标示y轴
CurrentX = 5
CurrentY = -5
Print "0" '标示原点