Fix loading old graphs.

script/BaseEdgeDrawer.js

@@ -43,8 +43,19 @@ const WeightTextCenter = 0,
    if (this.hasOwnProperty('weightPosition'))
      baseStyle.weightPosition = this.weightPosition;
  
-   return baseStyle;
- }
+   return this.FixNewFields(baseStyle);
+}
+  
+BaseEdgeStyle.prototype.FixNewFields = function (style)
+{
+  if (!style.hasOwnProperty('lineDash'))
+    style.lineDash = 0;
+
+  if (!style.hasOwnProperty('weightPosition'))
+    style.weightPosition = WeightTextCenter;
+
+  return style;
+}
 
  BaseEdgeStyle.prototype.Clear = function ()
  {

script/BaseVertexDrawer.js

@@ -112,7 +112,19 @@ BaseVertexStyle.prototype.GetStyle = function (baseStyle, object)
 		baseStyle.commonTextPosition = this.commonTextPosition;
 
 	baseStyle.lineWidth = parseInt(baseStyle.lineWidth);
-	return baseStyle;
+
+	return this.FixNewFields(baseStyle);
+}
+
+BaseVertexStyle.prototype.FixNewFields = function (style)
+{
+	if (!style.hasOwnProperty('shape'))
+		style.shape = VertexCircleShape;
+
+	if (!style.hasOwnProperty('commonTextPosition'))
+		style.commonTextPosition = CommonTextCenter;
+
+	return style;
 }
 
 BaseVertexStyle.prototype.Clear = function ()

tpl/home.php

@@ -10,7 +10,7 @@
 
         <script src="<?= Root('i/js/dev/jquery-ui.js')?>"></script>
 	    <script src="<?= Root('i/js/dev/jquery.feedback_me.js')?>"></script>
-        <script src="<?= Root("script/example.js?v=43")?>" ></script>
+        <script src="<?= Root("script/example.js?v=44")?>" ></script>
     </head>
 <!--
 <div class="pull-right">