终点画线算法的matlab代码
时间: 2024-04-13 18:23:26 浏览: 12
终点画线算法(Bresenham算法)是一种用于在离散坐标系统中绘制直线的算法。以下是使用Matlab实现终点画线算法的代码:
```matlab
function line = bresenham(x1, y1, x2, y2)
dx = abs(x2 - x1);
dy = abs(y2 - y1);
steep = abs(dy) > abs(dx);
if steep
temp = dx;
dx = dy;
dy = temp;
end
if dy == 0
q = zeros(dx+1, 1);
else
q = [0; diff(mod([floor(dx/2):-dy:-dy*dx+floor(dx/2)]', dx)) >= 0];
end
if steep
if y1 <= y2
y = y1 : y2;
else
y = y1 : -1 : y2;
end
if x1 <= x2
x = x1 + cumsum(q);
else
x = x1 - cumsum(q);
end
else
if x1 <= x2
x = x1 : x2;
else
x = x1 : -1 : x2;
end
if y1 <= y2
y = y1 + cumsum(q);
else
y = y1 - cumsum(q);
end
end
line = [x', y'];
end
```
使用该函数,你可以传入起点和终点的坐标,然后得到连接这两个点的直线上的所有离散点坐标。