VB.Net/2D/Pie
Draw and Fill a Pie
<source lang="vbnet"> Imports System Imports System.Windows.Forms Imports System.Drawing Imports System.Drawing.Drawing2D
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() " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(504, 629) Me.Name = "Form1" Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen Me.Text = "Form1" 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 R1 As New Rectangle(10, 10, 40, 40) e.Graphics.SmoothingMode = SmoothingMode.HighQuality "Use first rect to bound pie e.Graphics.ResetTransform() e.Graphics.TranslateTransform(100.0F, 50.0F) e.Graphics.DrawPie(Pens.DarkViolet, R1, 0, 60) "Use first rect to fill pie e.Graphics.ResetTransform() e.Graphics.TranslateTransform(150.0F, 50.0F) e.Graphics.FillPie(Brushes.DarkViolet, R1, 0, 60)
End Sub
End Class
</source>
Fill a Pie
<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" End Sub
- End Region
" display ovals lines, and rectangles Protected Overrides Sub OnPaint( _ ByVal paintEvent As PaintEventArgs) " get graphics object Dim graphicsObject As Graphics = paintEvent.Graphics Dim rectangle1 As Rectangle = New Rectangle(15, 35, 80, 80) Dim brush1 As SolidBrush = New SolidBrush(Color.Firebrick) Dim pen1 As Pen = New Pen(brush1, 1) Dim brush2 As SolidBrush = New SolidBrush(Color.DarkBlue) Dim pen2 As Pen = New Pen(brush2, 1)
" start at 0 and sweep 360 degrees rectangle1.Location = New Point(15, 120) rectangle1.Size = New Size(80, 40) graphicsObject.DrawRectangle(pen1, rectangle1) graphicsObject.FillPie(brush2, rectangle1, 0, 360) End Sub " OnPaint
End Class " FrmDrawing
</source>