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fix: reduce chart spline tension to prevent jittery overshoot

This commit is contained in:
nate 2026-03-18 19:52:46 +04:00
parent 59861651bd
commit 1706e83a3f
1 changed files with 6 additions and 6 deletions
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12
apps/web/src/views/detail.ejs
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@ -253,18 +253,18 @@
ctx.beginPath(); ctx.beginPath();
ctx.strokeStyle = color; ctx.lineWidth = 1.5; ctx.lineJoin = 'round'; ctx.lineCap = 'round'; ctx.strokeStyle = color; ctx.lineWidth = 1.5; ctx.lineJoin = 'round'; ctx.lineCap = 'round';
// Catmull-Rom spline for smooth curves // Gentle Catmull-Rom spline — low tension to avoid overshoot on noisy data
ctx.moveTo(pts[0].x, pts[0].y); ctx.moveTo(pts[0].x, pts[0].y);
for (let i = 0; i < pts.length - 1; i++) { for (let i = 0; i < pts.length - 1; i++) {
const p0 = pts[Math.max(i - 1, 0)]; const p0 = pts[Math.max(i - 1, 0)];
const p1 = pts[i]; const p1 = pts[i];
const p2 = pts[i + 1]; const p2 = pts[i + 1];
const p3 = pts[Math.min(i + 2, pts.length - 1)]; const p3 = pts[Math.min(i + 2, pts.length - 1)];
const tension = 0.3; const t = 0.15;
const cp1x = p1.x + (p2.x - p0.x) * tension; const cp1x = p1.x + (p2.x - p0.x) * t;
const cp1y = p1.y + (p2.y - p0.y) * tension; const cp1y = p1.y + (p2.y - p0.y) * t;
const cp2x = p2.x - (p3.x - p1.x) * tension; const cp2x = p2.x - (p3.x - p1.x) * t;
const cp2y = p2.y - (p3.y - p1.y) * tension; const cp2y = p2.y - (p3.y - p1.y) * t;
ctx.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, p2.x, p2.y); ctx.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, p2.x, p2.y);
} }
ctx.stroke(); ctx.stroke();