给我一个中点画圆法matlab代码
时间: 2023-11-18 15:03:48 浏览: 108
以下是使用中点画圆法绘制圆形的 MATLAB 代码:
```matlab
function midpoint_circle(xc, yc, r)
% xc, yc are the coordinates of the center of the circle
% r is the radius of the circle
x = 0;
y = r;
p = 1 - r;
plot_points(xc, yc, x, y);
while x < y
x = x + 1;
if p < 0
p = p + 2*x + 1;
else
y = y - 1;
p = p + 2*(x - y) + 1;
end
plot_points(xc, yc, x, y);
end
function plot_points(xc, yc, x, y)
plot(xc+x, yc+y, 'r.', 'MarkerSize', 10);
plot(xc-x, yc+y, 'r.', 'MarkerSize', 10);
plot(xc+x, yc-y, 'r.', 'MarkerSize', 10);
plot(xc-x, yc-y, 'r.', 'MarkerSize', 10);
plot(xc+y, yc+x, 'r.', 'MarkerSize', 10);
plot(xc-y, yc+x, 'r.', 'MarkerSize', 10);
plot(xc+y, yc-x, 'r.', 'MarkerSize', 10);
plot(xc-y, yc-x, 'r.', 'MarkerSize', 10);
```
你可以将圆心坐标 `(xc, yc)` 和半径 `r` 传递给 `midpoint_circle` 函数,它将使用中点画圆法绘制圆形。 `plot_points` 函数用于绘制圆上的点。
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