opencv arrowedLine

opencv arrowedLine

/** @brief Draws a arrow segment pointing from the first point to the second one.

The function arrowedLine draws an arrow between pt1 and pt2 points in the image. See also cv::line.

@param img Image.
@param pt1 The point the arrow starts from.
@param pt2 The point the arrow points to.
@param color Line color.
@param thickness Line thickness.
@param line_type Type of the line, see cv::LineTypes
@param shift Number of fractional bits in the point coordinates.
@param tipLength The length of the arrow tip in relation to the arrow length
 */
CV_EXPORTS_W void arrowedLine(InputOutputArray img, Point pt1, Point pt2, const Scalar& color,
                     int thickness=1, int line_type=8, int shift=0, double tipLength=0.1);

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