Index: Riskeer/Piping/src/Riskeer.Piping.Data/Probabilistic/ProbabilisticPipingCalculation.cs
===================================================================
diff -u -r984b298e426bd997cb17196b8d4e1a06f1395eb2 -r4b9dc2d9640585db572f99b5f38880b3a343a45b
--- Riskeer/Piping/src/Riskeer.Piping.Data/Probabilistic/ProbabilisticPipingCalculation.cs	(.../ProbabilisticPipingCalculation.cs)	(revision 984b298e426bd997cb17196b8d4e1a06f1395eb2)
+++ Riskeer/Piping/src/Riskeer.Piping.Data/Probabilistic/ProbabilisticPipingCalculation.cs	(.../ProbabilisticPipingCalculation.cs)	(revision 4b9dc2d9640585db572f99b5f38880b3a343a45b)
@@ -45,6 +45,14 @@
         /// </summary>
         public ProbabilisticPipingOutput Output { get; set; }
 
+        /// <summary>
+        /// Clears the calculated illustration points.
+        /// </summary>
+        public void ClearIllustrationPoints()
+        {
+            Output?.ClearIllustrationPoints();
+        }
+
         public override void ClearOutput()
         {
             Output = null;
Index: Riskeer/Piping/test/Riskeer.Piping.Data.Test/Probabilistic/ProbabilisticPipingCalculationTest.cs
===================================================================
diff -u -rb73588e5f0c90398c590383b9e6996f996c19735 -r4b9dc2d9640585db572f99b5f38880b3a343a45b
--- Riskeer/Piping/test/Riskeer.Piping.Data.Test/Probabilistic/ProbabilisticPipingCalculationTest.cs	(.../ProbabilisticPipingCalculationTest.cs)	(revision b73588e5f0c90398c590383b9e6996f996c19735)
+++ Riskeer/Piping/test/Riskeer.Piping.Data.Test/Probabilistic/ProbabilisticPipingCalculationTest.cs	(.../ProbabilisticPipingCalculationTest.cs)	(revision 4b9dc2d9640585db572f99b5f38880b3a343a45b)
@@ -21,6 +21,7 @@
 
 using Core.Common.Data.TestUtil;
 using NUnit.Framework;
+using Riskeer.Common.Data.TestUtil.IllustrationPoints;
 using Riskeer.Piping.Data.Probabilistic;
 using Riskeer.Piping.Data.TestUtil;
 
@@ -75,6 +76,42 @@
         }
 
         [Test]
+        public void ClearIllustrationPoints_CalculationWithOutput_ClearsIllustrationPointResult()
+        {
+            // Setup
+            PartialProbabilisticPipingOutput sectionSpecificOutput =
+                PipingTestDataGenerator.GetRandomPartialProbabilisticPipingOutput(new TestGeneralResultFaultTreeIllustrationPoint());
+            PartialProbabilisticPipingOutput profileSpecificOutput =
+                PipingTestDataGenerator.GetRandomPartialProbabilisticPipingOutput(new TestGeneralResultFaultTreeIllustrationPoint());
+            var output = new ProbabilisticPipingOutput(sectionSpecificOutput, profileSpecificOutput);
+            var calculation = new ProbabilisticPipingCalculation(new GeneralPipingInput())
+            {
+                Output = output
+            };
+
+            // Call
+            calculation.ClearIllustrationPoints();
+
+            // Assert
+            Assert.AreSame(output, calculation.Output);
+            Assert.IsNull(output.SectionSpecificOutput.GeneralResult);
+            Assert.IsNull(output.ProfileSpecificOutput.GeneralResult);
+        }
+
+        [Test]
+        public void ClearIllustrationPoints_CalculationWithoutOutput_NothingHappens()
+        {
+            // Setup
+            var calculation = new ProbabilisticPipingCalculation(new GeneralPipingInput());
+
+            // Call
+            void Call() => calculation.ClearIllustrationPoints();
+
+            // Assert
+            Assert.DoesNotThrow(Call);
+        }
+
+        [Test]
         public void ClearOutput_Always_SetsOutputToNull()
         {
             // Setup