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AVL.DrawCircle Method

Draws a circle on an image.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax

public static void DrawCircle(
	ref AvlNet.Image ioImage,
	AvlNet.Circle2D inCircle,
	AvlNet.CoordinateSystem2D? inCircleAlignment,
	AvlNet.Pixel inColor,
	AvlNet.DrawingStyle inDrawingStyle
)

Parameters

Name Type Range Default Description
ioImageAvlNet.Image
inCircleAvlNet.Circle2D
inCircleAlignmentAvlNet.CoordinateSystem2D?
inColorAvlNet.Pixel
inDrawingStyleAvlNet.DrawingStyle

Description

The operation draws a single of circle on the ioImage. Circle may exceed the image dimensions - those will be drawn partially or not at all, but the filter execution will succeed.

Examples

Following example draws a red circles that bounds regions, which area is lower than 2000 pixels. It is a part of the bigger Blob Analysis Example. 

            foreach (Region mount in mounts)
            {
                int area;
                AVL.RegionArea(mount, out area);
                if (area < 2000)
                {
                    Circle2D circle;
                    AVL.RegionBoundingCircle(mount, out circle);
                    AVL.DrawCircle(ref mountsImage, circle, red, style);
                }
            }

See also