в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

Admin: 1 версия

2010-05-26T12:54:50Z

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==Change PageUnit==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TransformUnits
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)
g.DrawEllipse(Pens.Red, 0, 0, 100, 50)
g.PageUnit = GraphicsUnit.Pixel
g.DrawEllipse(Pens.Red, 0, 0, 100, 50)
g.PageUnit = GraphicsUnit.Millimeter
g.DrawEllipse(Pens.Blue, 0, 0, 100, 50)
g.PageUnit = GraphicsUnit.Point
g.DrawEllipse(Pens.Green, 0, 0, 100, 50)
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>

==Change Pen width by setting the PageUnit==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class PenWidth
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private Sub RadioButton_CheckedChanged( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles UsePixels.CheckedChanged, _
UseMillimeters.CheckedChanged, _
UseInches.CheckedChanged
" ----- Change the scaling system.
Me.Refresh()
End Sub
Private Sub Form1_Paint(ByVal sender As Object, _
ByVal e As System.Windows.Forms.PaintEventArgs) _
Handles Me.Paint
Dim canvas As Graphics
canvas = e.Graphics
If (UseMillimeters.Checked = True) Then
canvas.PageUnit = GraphicsUnit.Millimeter
ElseIf (UseInches.Checked = True) Then
canvas.PageUnit = GraphicsUnit.Inch
Else
canvas.PageUnit = GraphicsUnit.Pixel
End If
canvas.DrawLine(New Pen(Color.Red, 1), 1, 1,200, 100)
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.UsePixels = New System.Windows.Forms.RadioButton
Me.UseMillimeters = New System.Windows.Forms.RadioButton
Me.UseInches = New System.Windows.Forms.RadioButton
Me.SuspendLayout()
"
"UsePixels
"
Me.UsePixels.AutoSize = True
Me.UsePixels.Checked = True
Me.UsePixels.Location = New System.Drawing.Point(24, 128)
Me.UsePixels.Name = "UsePixels"
Me.UsePixels.Size = New System.Drawing.Size(52, 17)
Me.UsePixels.TabIndex = 0
Me.UsePixels.TabStop = True
Me.UsePixels.Text = "Pixels"
Me.UsePixels.UseVisualStyleBackColor = True
"
"UseMillimeters
"
Me.UseMillimeters.AutoSize = True
Me.UseMillimeters.Location = New System.Drawing.Point(24, 152)
Me.UseMillimeters.Name = "UseMillimeters"
Me.UseMillimeters.Size = New System.Drawing.Size(73, 17)
Me.UseMillimeters.TabIndex = 1
Me.UseMillimeters.Text = "Millimeters"
Me.UseMillimeters.UseVisualStyleBackColor = True
"
"UseInches
"
Me.UseInches.AutoSize = True
Me.UseInches.Location = New System.Drawing.Point(24, 176)
Me.UseInches.Name = "UseInches"
Me.UseInches.Size = New System.Drawing.Size(57, 17)
Me.UseInches.TabIndex = 2
Me.UseInches.Text = "Inches"
Me.UseInches.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(513, 384)
Me.Controls.Add(Me.UseInches)
Me.Controls.Add(Me.UseMillimeters)
Me.Controls.Add(Me.UsePixels)
Me.Name = "Form1"
Me.Text = "Drawing Lines One Pixel Wide Regardless of Scaling"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents UsePixels As System.Windows.Forms.RadioButton
Friend WithEvents UseMillimeters As System.Windows.Forms.RadioButton
Friend WithEvents UseInches As System.Windows.Forms.RadioButton
End Class</source>

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

в 16:40, 26 мая 2010

Admin: 1 версия