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解决圆点抖动问题 #58

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解决圆点抖动问题 #58

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88194aa
resolve the spot shake issue
Apr 15, 2019
c6b0ff6
add Math.abs() to fix bug
Apr 16, 2019
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6 changes: 5 additions & 1 deletion src/CanvasNest.js
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Original file line number Diff line number Diff line change
Expand Up @@ -115,7 +115,11 @@ export default class CanvasNest {
y_dist = r.y - e.y; // y轴距离 n
dist = x_dist * x_dist + y_dist * y_dist; // 总距离, m

dist < e.max && (e === current && dist >= e.max / 2 && (r.x -= 0.03 * x_dist, r.y -= 0.03 * y_dist), // 靠近的时候加速
dist < e.max && (e === current &&
(
((Math.abs(r.xa / r.ya - x_dist / y_dist) < 0.1 ) && (dist <= e.max / 1.995 && dist >= e.max / 2.005) && (r.x -= r.xa, r.y -= r.ya)) || //当加速度斜率逼近距离斜率且距离小于某个范围时，就停止运动
(dist >= e.max / 2 && (r.x -= 0.03 * x_dist, r.y -= 0.03 * y_dist))
), // 靠近的时候加速
d = (e.max - dist) / e.max,
context.beginPath(),
context.lineWidth = d / 2,
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