From aad26b3d9e2d98e1ce08ec6cfcdc055cd8fc398c Mon Sep 17 00:00:00 2001
From: duxingchen <duxingchen@iris-rs.cn>
Date: Thu, 6 Aug 2026 11:50:10 +0800
Subject: [PATCH] =?UTF-8?q?2D=E5=B8=83=E5=B1=80=E5=9B=9E=E9=80=80=E7=8A=B6?=
 =?UTF-8?q?=E6=80=81=E5=88=A4=E5=AE=9A:=20=E7=88=B6WIP=E2=86=92=E5=B9=B6?=
 =?UTF-8?q?=E8=A1=8C=E5=90=8CY=20/=20=E7=88=B6COMPLETED=E2=86=92=E4=B8=B2?=
 =?UTF-8?q?=E8=A1=8C=E6=8D=A2=E8=A1=8C(=E5=90=8E=E7=AB=AF=E5=B7=B2?=
 =?UTF-8?q?=E9=99=90=E5=88=B6COMPLETED=E5=90=8E=E4=B8=8D=E5=8F=AFspawn)?=
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---
 track-uniapp/src/pages/scan/components/TreeCanvas.vue | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/track-uniapp/src/pages/scan/components/TreeCanvas.vue b/track-uniapp/src/pages/scan/components/TreeCanvas.vue
index e83b9bd..caedfd5 100644
--- a/track-uniapp/src/pages/scan/components/TreeCanvas.vue
+++ b/track-uniapp/src/pages/scan/components/TreeCanvas.vue
@@ -66,12 +66,10 @@ export default {
       const layout = (tasks, parentRowIdx, parentX) => {
         if (!tasks || !tasks.length) return;
         tasks.forEach(t => {
-          // 时间戳判定：子任务创建于父任务完成之后 → 串行(下一行)；否则 → 并行(同Y偏右)
-          const parentNode = this.taskDataMap[t.parent_task_id];
-          const isSerial = !t.parent_task_id || (
-            parentNode && parentNode.completed_at &&
-            new Date(t.created_at) > new Date(parentNode.completed_at)
-          );
+          // 工业拓扑：父WIP→并行(同Y)；父COMPLETED→串行(换行)
+          // 后端保证 COMPLETED 后不可 spawn，故 COMPLETED 的子任务必为转交产物
+          const parent = this.taskDataMap[t.parent_task_id];
+          const isSerial = !t.parent_task_id || (parent && parent.status === 'COMPLETED');
           const rowIdx = isSerial ? (parentRowIdx >= 0 ? parentRowIdx + 1 : rows.length) : parentRowIdx;
           while (rows.length <= rowIdx) rows.push({ y: 0, tasks: [] });