两条直线之间的夹角,两个直线的夹角怎么算

计算上面两直线的夹角，代码如下

const getAngle = ({ x: x1, y: y1 }, { x: x2, y: y2 }) => { const dot = x1 * x2 + y1 * y2 const det = x1 * y2 - y1 * x2 const angle = Math.atan2(det, dot) / Math.PI * 180 return (angle + 360) % 360}const angle = getAngle({ x: x1 - x3, y: y1 - y3,}, { x: x2 - x3, y: y2 - y3,});console.log(angle);

转载于:https://www.cnblogs.com/ystrdy/p/10324466.html