в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

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2010-05-26T12:55:08Z

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==Assign Matrix to Graphics.Transform==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ScalingMatrixOrder
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim curBitmap As New Bitmap("yourfile.jpg") "
Dim X As New Matrix
X.Scale(2, 1, MatrixOrder.Append)
g.Transform = X
g.DrawImage(curBitmap, New Rectangle(0, 0, 200, 200), 0, 0, curBitmap.Width, curBitmap.Height, GraphicsUnit.Pixel)
curBitmap.Dispose()
g.Dispose()
End Sub
Public Sub New()

MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class</source>

==Matrix.Invert==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MatrixReflection
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim curBitmap As New Bitmap("yourfile.jpg") "
Dim X As New Matrix
X.Invert()
g.Transform = X
g.DrawImage(curBitmap, New Rectangle(0, 0, 200, 200), 0, 0, curBitmap.Width, curBitmap.Height, GraphicsUnit.Pixel)
" Dispose
curBitmap.Dispose()
g.Dispose()
End Sub
Public Sub New()

MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class</source>

==Matrix Operation Invert==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class Test
public Shared Sub Main
Console.WriteLine("Original values: ")
" Create a Matrix object
Dim X As New Matrix(2, 1, 3, 1, 0, 4)
" Write its values
Dim i As Integer
For i = 0 To X.Elements.Length - 1
Console.WriteLine(X.Elements(i))
Next i
Console.WriteLine("Inverted values: ")
" Invert Matrix
X.Invert()
Dim pts As Single() = X.Elements
" Read inverted Matrix
Dim i1 As Integer
For i = 0 To pts.Length - 1
Console.WriteLine(pts(i))
Next i
End Sub
End class</source>

==Matrix Operation Multiply==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class Test
public Shared Sub Main
Dim X As New Matrix(2.0F, 1.0F, 3.0F, 1.0F, 0.0F, 4.0F)
Dim Y As New Matrix(0.0F, 1.0F, -1.0F, 0.0F, 0.0F, 0.0F)
X.Multiply(Y, MatrixOrder.Append)
" Read the result Matrix
Dim i As Integer
For i = 0 To X.Elements.Length - 1
Console.WriteLine(X.Elements(i).ToString())
Next i

End Sub
End class</source>

==Matrix: RotateAt==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MatrixRotateAt
public Shared Sub Main
Application.Run(New RotateForm)
End Sub
End class

Public Class RotateForm
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()
"
"RotateForm
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(280, 214)
Me.Name = "RotateForm"
Me.Text = "RotateForm"
End Sub
#End Region

Sub RotateForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Dim x As Integer = 400
Dim y As Integer = 400
Dim width As Integer = 250
Dim height As Integer = 250
Dim textWidth As Single = g.MeasureString("00", Me.Font).Width
Dim length As Single = 250
Dim textRect As RectangleF = New RectangleF(x + length, y - Me.Font.GetHeight(g) / 2, length, textWidth)
Dim format As StringFormat = New StringFormat()
format.Alignment = StringAlignment.Near
format.LineAlignment = StringAlignment.Center
Dim i As Integer
For i = 0 To 360 Step 5
Dim matrix As Matrix = New Matrix()
matrix.RotateAt(i, New PointF(x, y))
g.Transform = matrix
g.DrawLine(Pens.Black, x, y, x + length, y)
g.DrawString(i.ToString(), Me.Font, Brushes.Black, textRect, format)
Next
End Sub
End Class</source>

==Matrix: Shear(0,0)==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class Shearing0
public Shared Sub Main
Application.Run(New ShearingForm)
End Sub
End class

Public Class ShearingForm
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()
components = New System.ruponentModel.Container()
Me.Text = "ShearingForm"
End Sub
#End Region

Sub Foo(ByVal g As Graphics)
Dim matrix As Matrix = New Matrix()
matrix.Translate(10, 20)
matrix.Scale(2, 3)
matrix.Reset()
matrix.Scale(2, 3)
matrix.Translate(10, 20, MatrixOrder.Append)
g.Transform = matrix
g.DrawString("(0,0)", Me.Font, Brushes.Black, 0, 0)
End Sub
Sub ShearingForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Dim width As Single = 200
Dim height As Single = 50
Dim format As StringFormat = New StringFormat()
format.Alignment = StringAlignment.Center
format.LineAlignment = StringAlignment.Center
Dim rect As RectangleF = New RectangleF(0, 0, width, height)
Dim matrix As Matrix = New Matrix()
matrix.Shear(0.0F, 0.0F)
g.Transform = matrix
g.DrawString("Shear(0,0)", Me.Font, Brushes.Black, rect, format)
g.DrawRectangle(Pens.Black, rect.X, rect.Y, rect.Width, rect.Height)
End Sub
End Class</source>

==Matrix: Shear(0)==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class Shearing05
public Shared Sub Main
Application.Run(New ShearingForm)
End Sub
End class

Public Class ShearingForm
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()
components = New System.ruponentModel.Container()
Me.Text = "ShearingForm"
End Sub
#End Region
Sub ShearingForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Dim width As Single = 200
Dim height As Single = 50
Dim format As StringFormat = New StringFormat()
format.Alignment = StringAlignment.Center
format.LineAlignment = StringAlignment.Center
Dim rect As RectangleF = New RectangleF(0, 0, width, height)
Dim matrix As Matrix = New Matrix()
matrix.Shear(0.5F, 0.0F)
g.Transform = matrix
g.DrawString("Shear(0,0)", Me.Font, Brushes.Black, rect, format)
g.DrawRectangle(Pens.Black, rect.X, rect.Y, rect.Width, rect.Height)
End Sub
End Class</source>

==Matrix: Shear(1,0)==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class Shearing11
public Shared Sub Main
Application.Run(New ShearingForm)
End Sub
End class

Public Class ShearingForm
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()
components = New System.ruponentModel.Container()
Me.Text = "ShearingForm"
End Sub
#End Region
Sub ShearingForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Dim width As Single = 200
Dim height As Single = 50
Dim format As StringFormat = New StringFormat()
format.Alignment = StringAlignment.Center
format.LineAlignment = StringAlignment.Center
Dim rect As RectangleF = New RectangleF(0, 0, width, height)
Dim matrix As Matrix = New Matrix()
matrix.Shear(1.0F, 0.0F)
g.Transform = matrix
g.DrawRectangle(Pens.Black, rect.X, rect.Y, rect.Width, rect.Height)
End Sub
End Class</source>

==Matrix: Translate==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MatrixTranslationDemo
public Shared Sub Main
Application.Run(New TranslationForm)
End Sub
End class

Public Class TranslationForm
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()
components = New System.ruponentModel.Container()
Me.Text = "TranslationForm"
End Sub
#End Region
Sub TranlationForm_Pain(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
Dim g As Graphics = e.Graphics
Dim rect As RectangleF = New RectangleF(0, 0, 125, 125)
g.FillRectangle(Brushes.White, rect)
g.DrawRectangle(Pens.Black, rect.X, rect.Y, rect.Width, rect.Height)
Dim matrix As Matrix = New Matrix()
matrix.Translate(150, 150)
g.Transform = matrix
g.FillRectangle(Brushes.White, rect)
g.DrawRectangle(Pens.Black, rect.X, rect.Y, rect.Width, rect.Height)
End Sub
End Class</source>

==Mirror Text: use Drawing2D.Matrix to transform Graphics==

<source lang="vbnet">"Visual Basic 2005 Cookbook Solutions for VB 2005 Programmers
"by Tim Patrick (Author), John Craig (Author)
"# Publisher: O"Reilly Media, Inc. (September 21, 2006)
"# Language: English
"# ISBN-10: 0596101775
"# ISBN-13: 978-0596101770

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MirrorText
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private Const QuoteText As String = "www.vbex.ru"
Private Sub VerticalMirror_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles VerticalMirror.CheckedChanged
MirroredText.Invalidate()
End Sub
Private Sub MirroredText_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MirroredText.Paint
Dim drawingArea As Rectangle
Dim saveState As Drawing2D.GraphicsState
Dim mirrorMatrix As Drawing2D.Matrix
e.Graphics.Clear(Color.White)
If (VerticalMirror.Checked = True) Then
drawingArea = New Rectangle(5, 5, _
(MirroredText.ClientRectangle.Width \ 2) - 10, _
MirroredText.ClientRectangle.Height - 10)
e.Graphics.DrawLine(Pens.Black, MirroredText.ClientRectangle.Width \ 2, _
5, MirroredText.ClientRectangle.Width \ 2, _
MirroredText.ClientRectangle.Height - 10)
Else
drawingArea = New Rectangle(5, 5, _
MirroredText.ClientRectangle.Width - 10, _
(MirroredText.ClientRectangle.Height \ 2) - 10)
e.Graphics.DrawLine(Pens.Black, 5, _
MirroredText.ClientRectangle.Height \ 2, _
MirroredText.ClientRectangle.Width - 10, _
MirroredText.ClientRectangle.Height \ 2)
End If
e.Graphics.DrawString(QuoteText, MirroredText.Font, _
Brushes.Black, drawingArea)
saveState = e.Graphics.Save()
If (VerticalMirror.Checked = True) Then
mirrorMatrix = New Drawing2D.Matrix(-1, 0, 0, 1, MirroredText.ClientRectangle.Width, 0)
Else
mirrorMatrix = New Drawing2D.Matrix(1, 0, 0, -1, 0, MirroredText.ClientRectangle.Height)
End If
e.Graphics.Transform = mirrorMatrix
e.Graphics.DrawString(QuoteText, MirroredText.Font, _
Brushes.Black, drawingArea)
e.Graphics.Restore(saveState)
End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
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.VerticalMirror = New System.Windows.Forms.RadioButton
Me.MirroredText = New System.Windows.Forms.PictureBox
Me.HorizontalMirror = New System.Windows.Forms.RadioButton
CType(Me.MirroredText, System.ruponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
"
"VerticalMirror
"
Me.VerticalMirror.AutoSize = True
Me.VerticalMirror.Checked = True
Me.VerticalMirror.Location = New System.Drawing.Point(8, 8)
Me.VerticalMirror.Name = "VerticalMirror"
Me.VerticalMirror.Size = New System.Drawing.Size(60, 17)
Me.VerticalMirror.TabIndex = 0
Me.VerticalMirror.TabStop = True
Me.VerticalMirror.Text = "&Vertical"
Me.VerticalMirror.UseVisualStyleBackColor = True
"
"MirroredText
"
Me.MirroredText.BackColor = System.Drawing.Color.White
Me.MirroredText.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.MirroredText.Location = New System.Drawing.Point(104, 8)
Me.MirroredText.Name = "MirroredText"
Me.MirroredText.Size = New System.Drawing.Size(304, 168)
Me.MirroredText.TabIndex = 1
Me.MirroredText.TabStop = False
"
"HorizontalMirror
"
Me.HorizontalMirror.AutoSize = True
Me.HorizontalMirror.Location = New System.Drawing.Point(8, 32)
Me.HorizontalMirror.Name = "HorizontalMirror"
Me.HorizontalMirror.Size = New System.Drawing.Size(72, 17)
Me.HorizontalMirror.TabIndex = 1
Me.HorizontalMirror.Text = "&Horizontal"
Me.HorizontalMirror.UseVisualStyleBackColor = True
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(419, 187)
Me.Controls.Add(Me.HorizontalMirror)
Me.Controls.Add(Me.MirroredText)
Me.Controls.Add(Me.VerticalMirror)
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
Me.MaximizeBox = False
Me.Name = "Form1"
Me.Text = "Mirror Text"
CType(Me.MirroredText, System.ruponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents VerticalMirror As System.Windows.Forms.RadioButton
Friend WithEvents MirroredText As System.Windows.Forms.PictureBox
Friend WithEvents HorizontalMirror As System.Windows.Forms.RadioButton
End Class</source>

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VB.Net Tutorial/2D Graphics/Matrix - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия