VB.Net Tutorial/2D Graphics/LineJoin styles — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 19:40, 26 мая 2010
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
- 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
- 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>