From 40c2583b1241fb93520df715e69946abb389a5c2 Mon Sep 17 00:00:00 2001
From: dong <58670809@qq.com>
Date: Tue, 15 Aug 2023 18:08:52 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=97=E8=BD=A6=E6=8A=A5=E9=94=99=E4=BF=AE?=
 =?UTF-8?q?=E6=94=B9?=
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---
 src/components/draw-app/dialogs/AddTrainDialog.vue | 2 +-
 src/graphics/train/Train.ts                        | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/components/draw-app/dialogs/AddTrainDialog.vue b/src/components/draw-app/dialogs/AddTrainDialog.vue
index 0fee054..be0fb05 100644
--- a/src/components/draw-app/dialogs/AddTrainDialog.vue
+++ b/src/components/draw-app/dialogs/AddTrainDialog.vue
@@ -57,7 +57,7 @@ import { ref } from 'vue';
 
 const props = defineProps({
   dev: {
-    type: Section || Turnout,
+    type: [Section, Turnout],
     required: true,
   },
   kmLength: {
diff --git a/src/graphics/train/Train.ts b/src/graphics/train/Train.ts
index 8e1e348..8e9d9f6 100644
--- a/src/graphics/train/Train.ts
+++ b/src/graphics/train/Train.ts
@@ -421,6 +421,9 @@ export class Train extends JlGraphic {
       }
       allLength = Math.abs(B - A);
     }
+    if (allLength == 0) {
+      allLength = 1;
+    }
     if (this.states.headOffset > allLength) {
       console.error('偏移长度超出最大长度');
       return;