AutoJs源码-直线和圆交点.js

/* 软件作者：https://xuhss.com/oxox/pro */ log(t(2,1,2,2,1)); function t(a, b, r, k, c) { let a1 = k * k + 1; let b1 = 2 * k * (c - b) - 2 * a; let c1 = a * a + (c - b) * (c - b) - r * r; let delta = b1 * b1 - 4 * a1 * c1; let result = []; let num = delta < 0 ? 0 : (delta > 0 ? 2 : 1); while (num-- > 0) { let x0 = Math.sqrt(delta); let x1 = (-b1 + Math.pow(-1, num) * x0) / (2 * a1); let y1 = k * x1 + c; result.push([{ x: x1, y: y1 }]); } return result; }