Graphics.DrawArc Method (Pen, RectangleF, Single, Single)
Draws an arc representing a portion of an ellipse specified by a RectangleF structure.
Assembly: System.Drawing (in System.Drawing.dll)
Public Sub DrawArc ( pen As Pen, rect As RectangleF, startAngle As Single, sweepAngle As Single )
RectangleF structure that defines the boundaries of the ellipse.
Angle in degrees measured clockwise from the x-axis to the starting point of the arc.
Angle in degrees measured clockwise from the startAngle parameter to ending point of the arc.
This method draws an arc that is a portion of the perimeter of an ellipse. The ellipse is defined by the boundaries of a rectangle. The arc is the portion of the perimeter of the ellipse between the startAngle parameter and the startAngle + sweepAngle parameters.
Creates a black pen.
Creates a rectangle to bound an ellipse.
Defines the start (45 degrees) and sweep (270 degrees) angles.
Draws the elliptical arc to the screen.
The result is a partial ellipse missing a segment between + and - 45 degrees of the x axis.
Private Sub DrawArcRectangleF(ByVal e As PaintEventArgs) ' Create pen. Dim blackPen As New Pen(Color.Black, 3) ' Create rectangle to bound ellipse. Dim rect As New RectangleF(0.0F, 0.0F, 100.0F, 200.0F) ' Create start and sweep angles on ellipse. Dim startAngle As Single = 45.0F Dim sweepAngle As Single = 270.0F ' Draw arc to screen. e.Graphics.DrawArc(blackPen, rect, startAngle, sweepAngle) End Sub
Available since 1.1