Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/IllustrationPoints/GeneralResult.cs
===================================================================
diff -u -r79cd607bf75f24327b6889d8709b072c3da3c156 -r6d67c42595915b7385a6cf2f13885abc9ed1fad0
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/IllustrationPoints/GeneralResult.cs	(.../GeneralResult.cs)	(revision 79cd607bf75f24327b6889d8709b072c3da3c156)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/IllustrationPoints/GeneralResult.cs	(.../GeneralResult.cs)	(revision 6d67c42595915b7385a6cf2f13885abc9ed1fad0)
@@ -31,7 +31,7 @@
         /// <summary>
         /// Gets or sets the general beta value.
         /// </summary>
-        public double Beta { get; set; }
+        public double Beta { get; set; } = double.NaN;
 
         /// <summary>
         /// Gets or sets the governing wind direction.
@@ -47,6 +47,6 @@
         /// Gets or sets the tree of illustration points for each 
         /// wind direction and closing situation.
         /// </summary>
-        public IEnumerable<IllustrationPointTreeNode> IllustrationPoints { get; set; }
+        public Dictionary<WindDirectionClosingSituation, IllustrationPointTreeNode> IllustrationPoints { get; set; }
     }
 }
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