Index: Ringtoets/Common/src/Ringtoets.Common.Data/Structures/IStructuresCalculationInput.cs
===================================================================
diff -u -r7164686dd771bc08a22e91598be4db2c0800a072 -r2e2b3e2cc4bc8fe3d8bbc26f3095e9f274ec699f
--- Ringtoets/Common/src/Ringtoets.Common.Data/Structures/IStructuresCalculationInput.cs	(.../IStructuresCalculationInput.cs)	(revision 7164686dd771bc08a22e91598be4db2c0800a072)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Structures/IStructuresCalculationInput.cs	(.../IStructuresCalculationInput.cs)	(revision 2e2b3e2cc4bc8fe3d8bbc26f3095e9f274ec699f)
@@ -26,7 +26,13 @@
     /// <summary>
     /// Interface describing an object that is the input to a structures calculation.
     /// </summary>
-    public interface IStructuresCalculationInput : ICalculationInput {}
+    public interface IStructuresCalculationInput : ICalculationInput
+    {
+        /// <summary>
+        /// Gets if the illustration points should be calculated.
+        /// </summary>
+        bool ShouldIllustrationPointsBeCalculated { get; }
+    }
 
     /// <summary>
     /// Interface describing an object that is the input to a structures calculation.