VB.Net Tutorial/2D Graphics/LineJoin styles

All LineJoin styles

<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class JoinsDemo

  public Shared Sub Main
       Application.Run(New JoinsForm)
  End Sub

End class

Public Class JoinsForm

   Inherits System.Windows.Forms.Form

1. 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 = "JoinsForm"
   End Sub

1. End Region

   Private Sub JoinsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
       Dim g As Graphics = e.Graphics
       Dim joinNames As String() = System.Enum.GetNames(GetType(LineJoin))
       Array.Sort(joinNames)
       Dim x As Integer = 0
       Dim y As Integer = 0
       Dim width As Integer = Me.ClientRectangle.Width / 2
       Dim height As Integer = Me.ClientRectangle.Height / 4
       Dim blackBrush As Brush = Brushes.Black
       Dim blackPen As Pen = Pens.Black
       Dim whitePen As Pen = Pens.White
       Dim joinName As String
       For Each joinName In joinNames
           Dim pen As Pen = New Pen(Color.Black, 12)
           pen.LineJoin = CType(System.Enum.Parse(GetType(LineJoin), joinName), LineJoin)
           g.DrawRectangle(pen, New Rectangle(x + 20, y + 20, width - 40, height - 40))
           g.DrawRectangle(whitePen, New Rectangle(x + 20, y + 20, width - 40, height - 40))
           Dim format As StringFormat = New StringFormat()
           format.Alignment = StringAlignment.Center
           format.LineAlignment = StringAlignment.Center
           g.DrawString(joinName, Me.Font, blackBrush, New RectangleF(x, y, width, height), format)
           y = y + height
       Next
   End Sub

End Class</source>

LineJoin.Bevel, LineJoin.Miter, LineJoin.Round

<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class LineJoinBevelMiterRound

  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)
       DrawSample(e.Graphics, 10, 10, Drawing2D.LineJoin.Bevel)
       DrawSample(e.Graphics, 110, 10, Drawing2D.LineJoin.Miter)
       DrawSample(e.Graphics, 210, 10, Drawing2D.LineJoin.Round)
   End Sub
   Private Sub DrawSample(ByVal gr As Graphics, ByVal x As Integer, ByVal y As Integer, ByVal join_style As Drawing2D.LineJoin)
       Dim the_pen As New Pen(Color.Black, 20)
       the_pen.LineJoin = join_style
       gr.DrawString(join_style.ToString, Me.Font, Brushes.Black, x, y)
       Dim pts() As Point = { New Point(x, y + 30),New Point(x + 50, y + 30),New Point(x + 25, y + 80) }
       gr.DrawLines(the_pen, 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>