From ba8a2fd69a5a0971a2be1c06d9f22719b7ec085c Mon Sep 17 00:00:00 2001
From: wangyu <823267011@qq.com>
Date: Mon, 29 Jun 2026 16:48:34 +0800
Subject: [PATCH] =?UTF-8?q?fix(material):=20=E6=80=BB=E5=9B=BE=E7=84=8A?=
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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 frontend/src/views/Material.vue | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/frontend/src/views/Material.vue b/frontend/src/views/Material.vue
index d026fa2..5b9a9a5 100644
--- a/frontend/src/views/Material.vue
+++ b/frontend/src/views/Material.vue
@@ -654,14 +654,15 @@ export default {
     },
     tick() {
       this.now = Date.now()
-      this.weld.position = (this.weld.position + 0.012) % 1
-      // 新一卷开始时滚动卷号
-      if (this.weld.position < 0.012) {
-        this.prev_coil_no = this.current.coil_no
-        const n = parseInt(this.current.coil_no || '26053552', 10) + 1
-        this.current.coil_no = String(n)
+      // 焊缝(带头)位置与线速度跟随实际在产卷进度（带头 = run_length / 2000）
+      const pp = this.producingPlan
+      if (pp) {
+        this.weld.position = Math.max(0, Math.min(1, this.prodLength / 2000))
+        this.current.speed = pp.run_speed || 0
+      } else {
+        this.weld.position = 0
+        this.current.speed = 0
       }
-      this.current.speed = Math.max(0, rnd(this.current.speed, 4))
 
       const wig = (o, key, amp) => { o[key] = rnd(o[key], amp) }
       wig(this.uncoiler, 'tension', 0.4); wig(this.uncoiler, 'speed', 2)