www.gusucode.com > 基于matlab程序hough变换检测圆源码 > 基于matlab程序hough变换检测圆源码/hough检测圆/DrawCircle.m
function DrawCircle(x, y, r, nseg, s) % Draw a circle on the current figure using ploylines % % DrawCircle(x, y, r, nseg, S) % A simple function for drawing a circle on graph. % % INPUT: (x, y, r, nseg, S) % x, y: Center of the circle % r: Radius of the circle % nseg: Number of segments for the circle % S: Colors, plot symbols and line types % % OUTPUT: None % % BUG REPORT: % Please send your bug reports, comments and suggestions to % pengtao@glue.umd.edu . Thanks. % Author: Tao Peng % Department of Mechanical Engineering % University of Maryland, College Park, Maryland 20742, USA % pengtao@glue.umd.edu % Version: alpha Revision: Jan. 10, 2006 theta = 0 : (2 * pi / nseg) : (2 * pi); pline_x = r * cos(theta) + x; pline_y = r * sin(theta) + y; %plot(pline_x, pline_y, s); plot(pline_x, pline_y,'r','LineWidth',2) hold on plot(pline_x, pline_y,'r','LineWidth',4)