в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

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2010-05-26T12:41:46Z

1 версия

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==Fill a star shape==

<source lang="vbnet">
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math
Public Class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1()
Application.Run(form1)
End Sub
End Class

Public Class Form1
Private Sub Form1_Paint(ByVal sender As Object, _
ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
Dim x As Integer = 10
Dim y As Integer = 10
Dim wid As Integer = 150
Dim hgt As Integer = 150
" Fill a star shape.
Dim cx As Integer = x + wid \ 2
Dim cy As Integer = y + hgt \ 2
Dim r1 As Integer = CInt(wid * 0.5)
Dim r2 As Integer = CInt(hgt * 0.25)
Dim star_pts(9) As Point
For i As Integer = 0 To 9 Step 2
star_pts(i).X = cx + CInt(r1 * Cos(i * PI / 5 - PI / 2))
star_pts(i).Y = cy + CInt(r1 * Sin(i * PI / 5 - PI / 2))
star_pts(i + 1).X = cx + CInt(r2 * Cos((i + 1) * PI / 5 - PI / 2))
star_pts(i + 1).Y = cy + CInt(r2 * Sin((i + 1) * PI / 5 - PI / 2))
Next i
Dim star_path As New GraphicsPath
star_path.AddPolygon(star_pts)
Dim star_brush As New PathGradientBrush(star_pts)
star_brush.CenterColor = Color.Black
star_brush.SurroundColors = New Color() { _
Color.Black, Color.White, _
Color.Black, Color.White, _
Color.Black, Color.White, _
Color.Black, Color.White, _
Color.Black, Color.White _
}
e.Graphics.FillPolygon(star_brush, star_pts)
End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads 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.SuspendLayout()
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(200, 200)
Me.Name = "Form1"
Me.Text = ""
Me.ResumeLayout(False)
End Sub
End Class

</source>

==GraphicsPath: Draw Star==

<source lang="vbnet">
Imports System
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Drawing.Text
Public Class MainClass
Shared Sub Main()
Dim myform As Form = New FrmDrawShapes()
Application.Run(myform)
End Sub " Main
End Class

Public Class FrmDrawShapes
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()
"
"frmDrawShapes
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(520, 197)
Me.Name = "frmDrawShapes"
Me.Text = "Drawing Shapes"
End Sub
#End Region
" draw various shapes on form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim graphicsObject As Graphics = e.Graphics
Dim i As Integer
Dim random As Random = New Random()
Dim brush As SolidBrush = _
New SolidBrush(Color.DarkMagenta)
" x and y points of the path
Dim xPoints As Integer() = _
{55, 67, 109, 73, 83, 55, 27, 37, 1, 43}
Dim yPoints As Integer() = _
{0, 36, 36, 54, 96, 72, 96, 54, 36, 36}
" create graphics path for star
Dim star As GraphicsPath = New GraphicsPath()
" translate the origin to (150, 150)
graphicsObject.TranslateTransform(150, 150)
" create star from series of points
For i = 0 To 8 Step 2
star.AddLine(xPoints(i), yPoints(i), _
xPoints(i + 1), yPoints(i + 1))
Next
" close the shape
star.CloseFigure()
graphicsObject.FillPath(brush, star)
End Sub " OnPaint
End Class

</source>

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в 16:40, 26 мая 2010

Admin: 1 версия