From 583cb024a1cc440250859ffcb4cb4d0c4bd69e4e Mon Sep 17 00:00:00 2001
From: Unick Soft <admin@unick-soft.ru>
Date: Sun, 3 May 2020 21:46:33 +0200
Subject: [PATCH] Fix create graph by matrix.

---
 script/BaseEdge.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/script/BaseEdge.js b/script/BaseEdge.js
index 1757e30..09ee243 100755
--- a/script/BaseEdge.js
+++ b/script/BaseEdge.js
@@ -17,7 +17,11 @@ function BaseEdge(vertex1, vertex2, isDirect, weight, upText)
     this.useWeight = false;
     this.id        = 0;
     this.model = new EdgeModel();
-    this.upText    = upText;
+    
+    if (upText === undefined)
+        this.upText    = "";
+    else
+        this.upText    = upText;
     
     if (weight !== undefined)
       this.SetWeight(weight);