Dim angleIncrement As Single

angleIncrement = (sweepAngle - startAngle) / 10

Dim angle As Single

angle = startAngle

Dim i As Integer

For i = 0 To 10

xAngle(i) = x + (Math.Cos(angle * (Math.PI / 180)) * (width / 2))

yAngle(i) = y + (Math.Sin(angle * (Math.PI / 180)) * (height / 2))

angle += angleIncrement

Next i

xAngle(11) = x + (Math.Cos(sweepAngle * (Math.PI / 180)) * (width / 2))

yAngle(11) = y + (Math.Sin(sweepAngle * (Math.PI / 180)) * (height / 2))

Dim anglePoints(12) As Point

anglePoints(0) = New Point(x, y)

For i = 0 To 11

anglePoints(i + 1) = New Point(CInt(xAngle(i)), CInt(yAngle(i)))

Next

graphicsObject.DrawPolygon(pen, anglePoints)

End Sub

'=====================================================

'填充弧形

' graphicsObject - Graphics 對象

' solidBrush - 畫刷

' x,y - 弧的圓心

' width - 寬度 (X直徑)

' height - 高度 (Y直徑)

' startAngle - 起始角度

' sweepAngle - 結(jié)束角度

'

Sub fillPie(ByVal graphicsObject As Graphics, ByVal solidBrush As SolidBrush, ByVal x As Integer, ByVal y As Integer, ByVal width As Integer, ByVal height As Integer, ByVal startAngle As Single, ByVal sweepAngle As Single)

Dim xAngle(12) As Single

Dim yAngle(12) As Single

Dim angleIncrement As Single

angleIncrement = (sweepAngle - startAngle) / 10

Dim angle As Single

angle = startAngle

Dim i As Integer

For i = 0 To 10

xAngle(i) = x + (Math.Cos(angle * (Math.PI / 180)) * (width / 2))

yAngle(i) = y + (Math.Sin(angle * (Math.PI / 180)) * (height / 2))

angle += angleIncrement

Next i

xAngle(11) = x + (Math.Cos(sweepAngle * (Math.PI / 180)) * (width / 2))

yAngle(11) = y + (Math.Sin(sweepAngle * (Math.PI / 180)) * (height / 2))

Dim anglePoints(12) As Point

anglePoints(0) = New Point(x, y)

For i = 0 To 11

anglePoints(i + 1) = New Point(CInt(xAngle(i)), CInt(yAngle(i)))

Next

graphicsObject.FillPolygon(solidBrush, anglePoints)

End Sub