VB.Net Tutorial/2D Graphics/Scale
Содержание
Scale(1,1)
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class Scaling11
public Shared Sub Main Application.Run(New ScalingFontsForm) End Sub
End class
Public Class ScalingFontsForm
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() " "ScalingFontsForm " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(512, 70) Me.Name = "ScalingFontsForm" Me.Text = "ScalingFontsForm" End Sub
- End Region
Sub ScalingFontsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width Dim height As Integer = Me.ClientRectangle.Height Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Center Dim matrix As Matrix = New Matrix() g.ResetTransform() g.DrawRectangle(Pens.Black, x, y, width, height) matrix.Reset() matrix.Scale(1, 1) g.Transform = matrix g.DrawString("Scale(1,1)", Me.Font, Brushes.Black, New RectangleF(x, y, width, height), format) End Sub
End Class</source>
Scale(-1, -1) (2)
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class ScalingNegative
public Shared Sub Main Application.Run(New ScalingFontsForm) End Sub
End class
Public Class ScalingFontsForm
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() " "ScalingFontsForm " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(512, 70) Me.Name = "ScalingFontsForm" Me.Text = "ScalingFontsForm" End Sub
- End Region
Sub ScalingFontsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width Dim height As Integer = Me.ClientRectangle.Height Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Center Dim matrix As Matrix = New Matrix() g.ResetTransform() g.DrawRectangle(Pens.Black, x, y, width, height) matrix.Reset() matrix.Scale(-1, -1) g.Transform = matrix g.DrawString("Scale(-1,-1)", Me.Font, Brushes.Black, New RectangleF(-x - width, -y - height, width, height), format) End Sub
End Class</source>
Scale(1,3)
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class Scaling13
public Shared Sub Main Application.Run(New ScalingFontsForm) End Sub
End class
Public Class ScalingFontsForm
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() " "ScalingFontsForm " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(512, 70) Me.Name = "ScalingFontsForm" Me.Text = "ScalingFontsForm" End Sub
- End Region
Sub ScalingFontsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width Dim height As Integer = Me.ClientRectangle.Height Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Center Dim matrix As Matrix = New Matrix() g.ResetTransform() g.DrawRectangle(Pens.Black, x, y, width, height) matrix.Reset() matrix.Scale(1, 3) g.Transform = matrix g.DrawString("Scale(1,3)", Me.Font, Brushes.Black, New RectangleF(x, y / 3.0F, width, height / 3.0F), format) End Sub
End Class</source>
Scale(3, 1)
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class Scaling31
public Shared Sub Main Application.Run(New ScalingFontsForm) End Sub
End class
Public Class ScalingFontsForm
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() " "ScalingFontsForm " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(512, 70) Me.Name = "ScalingFontsForm" Me.Text = "ScalingFontsForm" End Sub
- End Region
Sub ScalingFontsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width Dim height As Integer = Me.ClientRectangle.Height Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Center Dim matrix As Matrix = New Matrix() g.ResetTransform() g.DrawRectangle(Pens.Black, x, y, width, height) matrix.Reset() matrix.Scale(3, 1) g.Transform = matrix g.DrawString("Scale(3,1)", Me.Font, Brushes.Black, New RectangleF(x / 3.0F, y, width / 3.0F, height), format) End Sub
End Class</source>
Scale Diamond
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class TranslateTransformScaleTransform
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) DrawDiamond(e.Graphics)
e.Graphics.TranslateTransform(-125, -125, MatrixOrder.Append) e.Graphics.ScaleTransform(2, 2, MatrixOrder.Append) e.Graphics.TranslateTransform(125, 125, MatrixOrder.Append) DrawDiamond(e.Graphics) End Sub Private Sub DrawDiamond(ByVal gr As Graphics) Dim pts() As Point = { _ New Point(75, 125), _ New Point(125, 75), _ New Point(175, 125), _ New Point(125, 175) _ } gr.DrawPolygon(Pens.Black, pts) 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>
Scale first and then Transform
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class ScaleFirstThenTransform
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) e.Graphics.ScaleTransform(30, 30, MatrixOrder.Append) e.Graphics.TranslateTransform(50, 60, MatrixOrder.Append) DrawArrow(e.Graphics, HatchStyle.Vertical) End Sub Private Sub DrawArrow(ByVal gr As Graphics, ByVal hatch_style As HatchStyle) Dim pts() As Point = { _ New Point(0, 1), _ New Point(2, 1), _ New Point(2, 0), _ New Point(4, 2), _ New Point(2, 4), _ New Point(2, 3), _ New Point(0, 3) _ } gr.FillPolygon(New HatchBrush(hatch_style, Color.Black, Color.White), pts) gr.DrawPolygon(New Pen(Color.Black, 0), pts) 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>