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Draws the line segment between pt1 and pt2 points in the image. The line is clipped by the image or ROI rectangle. For non-antialiased lines with integer coordinates the 8-connected or 4-connected Bresenham algorithm is used. Thick lines are drawn with rounding endings. Antialiased lines are drawn using Gaussian filtering.

Namespace: Emgu.CV
Assembly: Emgu.CV (in Emgu.CV.dll) Version: 2.4.0.1717 (2.4.0.1717)

Syntax

C#
public static void cvLine(
	IntPtr img,
	Point pt1,
	Point pt2,
	MCvScalar color,
	int thickness,
	LINE_TYPE lineType,
	int shift
)
Visual Basic
Public Shared Sub cvLine ( _
	img As IntPtr, _
	pt1 As Point, _
	pt2 As Point, _
	color As MCvScalar, _
	thickness As Integer, _
	lineType As LINE_TYPE, _
	shift As Integer _
)
Visual C++
public:
static void cvLine(
	IntPtr img, 
	Point pt1, 
	Point pt2, 
	MCvScalar color, 
	int thickness, 
	LINE_TYPE lineType, 
	int shift
)

Parameters

img
Type: System..::..IntPtr
The image
pt1
Type: System.Drawing..::..Point
First point of the line segment
pt2
Type: System.Drawing..::..Point
Second point of the line segment
color
Type: Emgu.CV.Structure..::..MCvScalar
Line color
thickness
Type: System..::..Int32
Line thickness.
lineType
Type: Emgu.CV.CvEnum..::..LINE_TYPE
Type of the line: 8 (or 0) - 8-connected line. 4 - 4-connected line. CV_AA - antialiased line.
shift
Type: System..::..Int32
Number of fractional bits in the point coordinates

See Also