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Graphics.FillClosedCurve Method (Brush, PointF[])

Fills the interior of a closed cardinal spline curve defined by an array of PointF structures.

Namespace: System.Drawing
Assembly: System.Drawing (in system.drawing.dll)

public void FillClosedCurve (
	Brush brush,
	PointF[] points
)
public void FillClosedCurve (
	Brush brush, 
	PointF[] points
)
public function FillClosedCurve (
	brush : Brush, 
	points : PointF[]
)
Not applicable.

Parameters

brush

Brush that determines the characteristics of the fill.

points

Array of PointF structures that define the spline.

Exception typeCondition

ArgumentNullException

brush is a null reference (Nothing in Visual Basic).

-or-

points is a null reference (Nothing in Visual Basic).

This method fills the interior of a closed cardinal spline that passes through each point in the array. If the last point does not match the first point, an additional curve segment is added from the last point to the first point to close it.

The array of points must contain at least four PointF structures.

This method uses a default tension of 0.5.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a solid red brush.

  • Creates an array of four points to define a spline.

  • Fills the curve on the screen.

The curve has a default tension of 0.5.

public void FillClosedCurvePointF(PaintEventArgs e)
{
             
    // Create solid brush.
    SolidBrush redBrush = new SolidBrush(Color.Red);
             
    //Create array of points for curve.
    PointF point1 = new PointF(100.0F, 100.0F);
    PointF point2 = new PointF(200.0F,  50.0F);
    PointF point3 = new PointF(250.0F, 200.0F);
    PointF point4 = new PointF(50.0F, 150.0F);
    PointF[] points = {point1, point2, point3, point4};
             
    // Fill curve on screen.
    e.Graphics.FillClosedCurve(redBrush, points);
}

public void FillClosedCurvePointF(PaintEventArgs e) 
{

    // Create solid brush.
    SolidBrush redBrush =  new SolidBrush(Color.get_Red());

    //Create array of points for curve.
    PointF point1 =  new PointF(100, 100);
    PointF point2 =  new PointF(200, 50);
    PointF point3 =  new PointF(250, 200);
    PointF point4 =  new PointF(50, 150);
    PointF points[] =  {point1, point2, point3, point4};

    // Fill curve on screen.
    e.get_Graphics().FillClosedCurve(redBrush, points);
} //FillClosedCurvePointF

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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