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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
)

Parameters

brush
Type: System.Drawing.Brush
Brush that determines the characteristics of the fill.
points
Type: System.Drawing.PointF[]
Array of PointF structures that define the spline.

ExceptionCondition
ArgumentNullException

brush is null.

-or-

points is null.

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 PaintEventArgs e, 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);
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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