BitmapDataExtensionsDrawPie(IReadWriteBitmapData, Color32, Rectangle, Single, Single, DrawingOptions) Method

Draws a one-pixel wide pie shape with the specified color.

Definition

Namespace: KGySoft.Drawing.Shapes
Assembly: KGySoft.Drawing.Core (in KGySoft.Drawing.Core.dll) Version: 9.1.1

C#

public static void DrawPie(
	this IReadWriteBitmapData bitmapData,
	Color32 color,
	Rectangle bounds,
	float startAngle,
	float sweepAngle,
	DrawingOptions? drawingOptions = null
)

VB

<ExtensionAttribute>
Public Shared Sub DrawPie ( 
	bitmapData As IReadWriteBitmapData,
	color As Color32,
	bounds As Rectangle,
	startAngle As Single,
	sweepAngle As Single,
	Optional drawingOptions As DrawingOptions = Nothing
)

C++

public:
[ExtensionAttribute]
static void DrawPie(
	IReadWriteBitmapData^ bitmapData, 
	Color32 color, 
	Rectangle bounds, 
	float startAngle, 
	float sweepAngle, 
	DrawingOptions^ drawingOptions = nullptr
)

F#

[<ExtensionAttribute>]
static member DrawPie : 
        bitmapData : IReadWriteBitmapData * 
        color : Color32 * 
        bounds : Rectangle * 
        startAngle : float32 * 
        sweepAngle : float32 * 
        ?drawingOptions : DrawingOptions 
(* Defaults:
        let _drawingOptions = defaultArg drawingOptions null
*)
-> unit

Parameters

bitmapData IReadWriteBitmapData: The IReadWriteBitmapData instance to draw on.
color Color32: The color of the pie to draw.
bounds Rectangle: The bounding rectangle that defines the ellipse from which the pie is drawn.
startAngle Single: The starting angle of the pie shape, measured in degrees clockwise from the x-axis.
sweepAngle Single: The sweep angle of the pie shape, measured in degrees clockwise from startAngle.
drawingOptions DrawingOptions (Optional): A DrawingOptions instance that specifies the drawing options to use. If , then the default options are used. This parameter is optional.
Default value: .

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IReadWriteBitmapData. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

The pie shape is defined by a partial outline of an ellipse and the two radial lines that intersect the endpoints of the partial outline.

This method tries to use a shortcut to draw the pie shape directly, which is faster than creating a Path and adding the pie to it. A shortcut is possible when drawingOptions is and the specified color is opaque, or when FastThinLines is enabled in drawingOptions, and it specifies that no anti-aliasing and no alpha blending is required, the transformation is the identity matrix, and neither Quantizer nor Ditherer is specified.

When no shortcut can be used and the same pie shape is drawn repeatedly, creating a Path with PreferCaching enabled can provide a better performance.

Note

This method adjusts the degree of parallelization automatically, blocks the caller, and does not support cancellation or reporting progress. You can use the overloads that have a ParallelConfig parameter to configure these, while still executing the method synchronously. Alternatively, use the BeginDrawPie or DrawPieAsync (in .NET Framework 4.0 and above) methods to perform the operation asynchronously.

Exceptions

ArgumentNullException	bitmapData is .
OverflowException	The coordinates (after a possible transformation specified in drawingOptions) are outside the bounds of an int value.