opencv中画圆circle函数和椭圆ellipse函数

1.      void ellipse(InputOutputArray img, Point center, Size axes, double angle, double startAngle, double endAngle,

const Scalar& color, int thickness = 1,   int lineType = LINE_8, int shift = 0);

ellipse函数将椭圆画到图像 lmg 上， 椭圆中心为点center，并且大小位于矩形 axes 内，椭圆旋转角度为 angle， 扩展的弧度从 0 度到 360 度，

图形颜色为 Scalar(x， y，z)，线宽 (thickness)为 1，线型(lineType)为 8 (8 联通线型)。

2.     void circle(InputOutputArray img,  Point center,  int radius,  const Scalar& color,   int thickness = 1,   int lineType = LINE_8,  int shift = 0);

img :表示输入的图像

center:  圆心坐标

radius: 圆的半径

color：Scalar类型，表示圆的颜色，例如蓝色为Scalar（255,0,0）

thickness:线的宽度

lineType：线的类型，（默认为8联通型）

 #include<iostream>

 #include<opencv2/opencv.hpp>

 using namespace cv;

 using namespace std;

 #define WINDOW_NAME1 "绘制图1"

 #define WINDOW_NAME2 "绘制图2"

 #define WINDOW_WIDTH 600    //定义窗口大小

 string image = "C:\\Users\\asus\\Pictures\\Saved Pictures\\123.jpg";
 

 void DrawEllipse(Mat img, double angle);

 void DrawFi1ledCirc1e(Mat img, Point center);

 int main()

 {

     Mat atomImage = Mat::zeros(WINDOW_WIDTH, WINDOW_WIDTH, CV_8UC3);

     Mat rookImage = Mat::zeros(WINDOW_WIDTH, WINDOW_WIDTH, CV_8UC3);

     //绘制椭圆

     DrawEllipse(atomImage, );

     DrawEllipse(atomImage, );

     DrawEllipse(atomImage, );

     DrawEllipse(atomImage, -);

     //绘制圆心

     DrawFi1ledCirc1e(atomImage, Point(WINDOW_WIDTH / ,WINDOW_WIDTH / ));

     imshow(WINDOW_NAME1, atomImage);

     waitKey();

     return ;

 }

 void DrawEllipse(Mat img, double angle) {

     int thickness = ;

     int lineType = ;

     ellipse(img, Point(WINDOW_WIDTH / , WINDOW_WIDTH / ),

         Size(WINDOW_WIDTH / , WINDOW_WIDTH / ), angle, , , Scalar(, , ),

         thickness, lineType);

 }

 void DrawFi1ledCirc1e(Mat img, Point center) {

     int thickness = -;

     int lineType = ;

     circle(img, center, WINDOW_WIDTH / , Scalar(, , ), thickness, lineType);

 }