VB.NET Graphics.FillClosedCurve方法代码示例

Public Sub FillClosedCurvePoint(ByVal e As PaintEventArgs)

    ' Create solid brush.
    Dim redBrush As New SolidBrush(Color.Red)

    'Create array of points for curve.
    Dim point1 As New Point(100, 100)
    Dim point2 As New Point(200, 50)
    Dim point3 As New Point(250, 200)
    Dim point4 As New Point(50, 150)
    Dim points As Point() = {point1, point2, point3, point4}

    ' Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points)
End Sub

Public Sub FillClosedCurvePointF(ByVal e As PaintEventArgs)

    ' Create solid brush.
    Dim redBrush As New SolidBrush(Color.Red)

    'Create array of points for curve.
    Dim point1 As New PointF(100.0F, 100.0F)
    Dim point2 As New PointF(200.0F, 50.0F)
    Dim point3 As New PointF(250.0F, 200.0F)
    Dim point4 As New PointF(50.0F, 150.0F)
    Dim points As PointF() = {point1, point2, point3, point4}

    ' Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points)
End Sub

Public Sub FillClosedCurvePointFillMode(ByVal e As PaintEventArgs)

    ' Create solid brush.
    Dim redBrush As New SolidBrush(Color.Red)

    'Create array of points for curve.
    Dim point1 As New Point(100, 100)
    Dim point2 As New Point(200, 50)
    Dim point3 As New Point(250, 200)
    Dim point4 As New Point(50, 150)
    Dim points As Point() = {point1, point2, point3, point4}

    ' Set fill mode.
    Dim newFillMode As FillMode = FillMode.Winding

    ' Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points, newFillMode)
End Sub

Public Sub FillClosedCurvePointFFillMode(ByVal e As PaintEventArgs)

    ' Create solid brush.
    Dim redBrush As New SolidBrush(Color.Red)

    ' Create array of points for curve.
    Dim point1 As New PointF(100.0F, 100.0F)
    Dim point2 As New PointF(200.0F, 50.0F)
    Dim point3 As New PointF(250.0F, 200.0F)
    Dim point4 As New PointF(50.0F, 150.0F)
    Dim points As PointF() = {point1, point2, point3, point4}

    ' Set fill mode.
    Dim newFillMode As FillMode = FillMode.Winding

    ' Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points, newFillMode)
End Sub

Public Sub FillClosedCurvePointFillModeTension(ByVal e As PaintEventArgs)

    ' Create solid brush.
    Dim redBrush As New SolidBrush(Color.Red)

    ' Create array of points for curve.
    Dim point1 As New Point(100, 100)
    Dim point2 As New Point(200, 50)
    Dim point3 As New Point(250, 200)
    Dim point4 As New Point(50, 150)
    Dim points As Point() = {point1, point2, point3, point4}

    ' Set fill mode.
    Dim newFillMode As FillMode = FillMode.Winding

    ' Set tension.
    Dim tension As Single = 1.0F

    ' Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points, newFillMode, tension)
End Sub

Public Sub FillClosedCurvePointFFillModeTension(ByVal e As PaintEventArgs)

    ' Create solid brush.
    Dim redBrush As New SolidBrush(Color.Red)

    ' Create array of points for curve.
    Dim point1 As New PointF(100.0F, 100.0F)
    Dim point2 As New PointF(200.0F, 50.0F)
    Dim point3 As New PointF(250.0F, 200.0F)
    Dim point4 As New PointF(50.0F, 150.0F)
    Dim points As PointF() = {point1, point2, point3, point4}

    ' Set fill mode.
    Dim newFillMode As FillMode = FillMode.Winding

    ' Set tension.
    Dim tension As Single = 1.0F

    ' Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points, newFillMode, tension)
End Sub

' 导入命名空间
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class FillClosedCurve
   public Shared Sub Main
        Application.Run(New FillModesForm)
   End Sub
End class


Public Class FillModesForm
    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.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.
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        components = New System.ComponentModel.Container()
        Me.Text = "FillModesForm"
    End Sub

#End Region

    Private Sub FillModesForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
        Dim g As Graphics = e.Graphics
        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
        Dim fillBrush As Brush = Brushes.Gray

        Dim pen As Pen = New Pen(Color.Red, 4)
        Dim pointPen As Pen = New Pen(Color.Black, 3)
        pointPen.StartCap = pointPen.EndCap = LineCap.SquareAnchor

        Dim points As PointF() = New PointF() {New PointF(x + 25, y + height - 25), New PointF(x + width - 25, y + height - 25), New PointF(x + 25, height / 2), New PointF(x + width - 25, y + 25), New PointF(x + 25, y + 25), New PointF(x + width - 25, height / 2)}
        g.DrawClosedCurve(pen, points)

        Dim fill As FillMode = FillMode.Winding
        g.FillClosedCurve(fillBrush, points, fill)

    End Sub
End Class