Emgu CV Library Documentation
cvCircle Method (img, center, radius, color, thickness, lineType, shift)
NamespacesEmgu.CVCvInvokecvCircle(IntPtr, Point, Int32, MCvScalar, Int32, LINE_TYPE, Int32)

www.emgu.com/wiki
Draws a simple or filled circle with given center and radius. The circle is clipped by ROI rectangle.
Declaration Syntax
C#Visual BasicVisual C++
public static void cvCircle(
	IntPtr img,
	Point center,
	int radius,
	MCvScalar color,
	int thickness,
	LINE_TYPE lineType,
	int shift
)
Public Shared Sub cvCircle ( _
	img As IntPtr, _
	center As Point, _
	radius As Integer, _
	color As MCvScalar, _
	thickness As Integer, _
	lineType As LINE_TYPE, _
	shift As Integer _
)
public:
static void cvCircle(
	IntPtr img, 
	Point center, 
	int radius, 
	MCvScalar color, 
	int thickness, 
	LINE_TYPE lineType, 
	int shift
)
Parameters
img (IntPtr)
Image where the circle is drawn
center (Point)
Center of the circle
radius (Int32)
Radius of the circle.
color (MCvScalar)
Color of the circle
thickness (Int32)
Thickness of the circle outline if positive, otherwise indicates that a filled circle has to be drawn
lineType (LINE_TYPE)
Type of the circle boundary
shift (Int32)
Number of fractional bits in the center coordinates and radius value

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)