в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

Admin: 1 версия

2010-05-26T12:41:42Z

1 версия

Новая страница

==Draw Colorful Line and Dash Line==

<source lang="vbnet">
Imports System
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Drawing.Text
Public Class MainClass
Shared Sub Main()
Dim myform As Form = New FrmDrawShapes()
Application.Run(myform)
End Sub " Main
End Class

Public Class FrmDrawShapes
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
"This call is required by the Windows Form Designer.
InitializeComponent()
"Add any initialization after the InitializeComponent() call
End Sub
"Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
"Required by the Windows Form Designer
Private components As System.ruponentModel.Container
"NOTE: The following procedure is required by the Windows Form Designer
"It can be modified using the Windows Form Designer.
"Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
"
"frmDrawShapes
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(520, 197)
Me.Name = "frmDrawShapes"
Me.Text = "Drawing Shapes"
End Sub
#End Region
" draw various shapes on form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim graphicsObject As Graphics = e.Graphics
" bitmap texture
Dim textureBitmap As Bitmap = New Bitmap(10, 10)
Dim graphicsObject2 As Graphics = _
Graphics.FromImage(textureBitmap) " get bitmap graphics
" brush and pen used throughout program
Dim solidColorBrush As SolidBrush = _
New SolidBrush(Color.Red)
Dim coloredPen As Pen = New Pen(solidColorBrush)
" draw pie-shaped arc in white
coloredPen.Color = Color.White
coloredPen.Width = 6
graphicsObject.DrawPie(coloredPen, 240, 30, 75, 100, 0, 270)
" draw lines in green and yellow
coloredPen.Color = Color.Green
coloredPen.Width = 5
graphicsObject.DrawLine(coloredPen, 395, 30, 320, 150)
" draw a rounded, dashed yellow line
coloredPen.Color = Color.Yellow
coloredPen.DashCap = LineCap.Round
coloredPen.DashStyle = DashStyle.Dash
graphicsObject.DrawLine(coloredPen, 320, 30, 395, 150)
End Sub " OnPaint
End Class

</source>

==Draw lines to connect rectangles==

<source lang="vbnet">
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Drawing.Text
Public Class MainClass
Shared Sub Main()
Dim myform As Form = New FrmDrawing()
Application.Run(myform)
End Sub " Main
End Class

Public Class FrmDrawing
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
"This call is required by the Windows Form Designer.
InitializeComponent()
"Add any initialization after the InitializeComponent() call
End Sub
"Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
"Required by the Windows Form Designer
Private components As System.ruponentModel.Container
"NOTE: The following procedure is required by the Windows Form Designer
"It can be modified using the Windows Form Designer.
"Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
"
"frmDrawing
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.BackColor = System.Drawing.SystemColors.AppWorkspace
Me.ClientSize = New System.Drawing.Size(472, 157)
Me.Name = "frmDrawing"
Me.Text = "Drawing lines, rectangles and ovals"
End Sub
#End Region
" display ovals lines, and rectangles
Protected Overrides Sub OnPaint( _
ByVal paintEvent As PaintEventArgs)
" get graphics object
Dim g As Graphics = paintEvent.Graphics
Dim brush As SolidBrush = New SolidBrush(Color.Blue)
Dim pen As Pen = New Pen(Color.AliceBlue)
" draw lines to connect rectangles
g.DrawLine(pen, 90, 30, 110, 40)
g.DrawLine(pen, 90, 120, 110, 130)
g.DrawLine(pen, 240, 30, 260, 40)
g.DrawLine(pen, 240, 120, 260, 130)

" draw top rectangle
g.DrawRectangle(pen, 110, 40, 150, 90)
End Sub " OnPaint
End Class " FrmDrawing

</source>

==Paint Lines==

<source lang="vbnet">
Imports System
Imports System.Drawing
Imports System.Drawing.Printing
Imports System.Collections
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.Drawing.Drawing2D
Class MyFirstForm
Inherits Form

Public Sub Draw(ByVal g As Graphics)
g.SmoothingMode = SmoothingMode.AntiAlias
Dim rect As Rectangle = Me.ClientRectangle
Dim cx As Integer = rect.Width
Dim cy As Integer = rect.Height
Dim scale As Single = CSng(cy) / CSng(cx)
Dim _brush As LinearGradientBrush = New LinearGradientBrush(Me.ClientRectangle, Color.Empty, Color.Empty, 45)
Dim blend As ColorBlend = New ColorBlend()
blend.Colors = New Color() {Color.Red, Color.Green, Color.Blue}
blend.Positions = New Single() {0.0, 0.5, 1.0}
_brush.InterpolationColors = blend
Dim _pen As Pen = New Pen(_brush)
Dim x As Integer
For x = 0 To cx Step 7
g.DrawLine(_pen, 0, x * scale, cx - x, 0)
g.DrawLine(_pen, 0, (cx - x) * scale, cx - x, cx * scale)
g.DrawLine(_pen, cx - x, 0 * scale, cx, (cx - x) * scale)
g.DrawLine(_pen, cx - x, cx * scale, cx, x * scale)
Next
Dim format As StringFormat = New StringFormat()
format.Alignment = StringAlignment.Center
format.LineAlignment = StringAlignment.Center
Dim s As String = "Ain"t graphics cool?"
g.DrawString(s, Me.Font, _brush, rect.X, rect.Y, format)
End Sub
Private Sub MyPaint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Draw(g)
End Sub
Shared Sub Main()
Dim myform As Form = New MyFirstForm()
Application.Run(myform)
End Sub
End Class

</source>

==Use Texture Brush to Draw a Line==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text

Public Class MainClass
Shared Sub Main()
Dim form1 As Form1 = new Form1
Application.Run(form1)
End Sub

End Class

Public Class Form1
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
"This call is required by the Windows Form Designer.
InitializeComponent()
"Add any initialization after the InitializeComponent() call
End Sub
"Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
"Required by the Windows Form Designer
Private components As System.ruponentModel.IContainer
"NOTE: The following procedure is required by the Windows Form Designer
"It can be modified using the Windows Form Designer.
"Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.SuspendLayout()
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(392, 213)
Me.Controls.AddRange(New System.Windows.Forms.Control() {})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim G As Graphics = e.Graphics
Dim P1 As Pen = New Pen(Color.Blue, 10)
"pentype
Dim P3 As Pen = New Pen(Color.Blue, 10)
P3.Brush = New TextureBrush(New Bitmap("figure2.bmp"))
G.DrawLine(P3, 20, CInt(Me.Height / 2), Me.Width - 20, CInt(Me.Height / 2))
End Sub
End Class

</source>

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VB.Net/2D/Line - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия