[VB.NET] Draw pie Chart [SRC] - Printable Version

Design

Code:
Inherits System.Windows.Forms.Form

Code:
#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.ComponentModel.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.

    Friend WithEvents Button1 As System.Windows.Forms.Button

    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

        Me.Button1 = New System.Windows.Forms.Button()

        Me.SuspendLayout()

        '

        'Button1

        '

        Me.Button1.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.75!, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, CType(0, Byte))

        Me.Button1.Location = New System.Drawing.Point(368, 280)

        Me.Button1.Name = "Button1"

        Me.Button1.Size = New System.Drawing.Size(152, 40)

        Me.Button1.TabIndex = 0

        Me.Button1.Text = "Draw Pie "

        '

        'Form1

        '

        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)

        Me.ClientSize = New System.Drawing.Size(528, 325)

        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1})

        Me.Name = "Form1"

        Me.Text = "Form1"

        Me.ResumeLayout(False)

    End Sub

#End Region

Project Source

Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim G As System.Drawing.Graphics

        G = Me.CreateGraphics

        Dim Brush As System.Drawing.SolidBrush

        Brush = New System.Drawing.SolidBrush(Color.Green)

        Dim Rect As Rectangle

        Rect = New Rectangle(100, 10, 300, 300)

        Dim Angles() As Single = {0, 40, 80, 125, 170, 260, 360}

        Dim Colors() As Color = {Color.Red, Color.Cornsilk, Color.Firebrick, Color.OliveDrab, Color.LawnGreen, Color.SandyBrown, Color.MidnightBlue}

        G.Clear(Color.Ivory)

        Dim Angle As Integer

        For Angle = 1 To Angles.GetUpperBound(0)

            Brush.Color = Colors(Angle - 1)

            G.FillPie(Brush, Rect, Angles(Angle - 1), Angles(Angle) - Angles(Angle - 1))

        Next

        G.DrawEllipse(Pens.Black, Rect)

    End Sub