diff --git a/AlgebraicDataflowArchitectureModel/src/application/editor/SimulationLayout.java b/AlgebraicDataflowArchitectureModel/src/application/editor/SimulationLayout.java
index 4534ab4..99bbdff 100644
--- a/AlgebraicDataflowArchitectureModel/src/application/editor/SimulationLayout.java
+++ b/AlgebraicDataflowArchitectureModel/src/application/editor/SimulationLayout.java
@@ -15,7 +15,9 @@
 import java.util.Set;
 
 public class SimulationLayout {
+    // Hold the division level for each resource
     HashMap<ResourceIdentifier,Integer> divisionLevelMap = new HashMap<>();
+    // Hold the scaling factor for each resource
     HashMap<ResourceIdentifier,Double> resourceScaleMap = new HashMap<>();
     int maxDivisionLevel = 1;
     public final double BASE_WIDTH = 400;
@@ -24,9 +26,11 @@
     SystemState systemState;
     public SimulationLayout(SystemState systemState){
         this.systemState = systemState;
+        // Calculate the division level for each resource
         for (Resource res:systemState.getRootResources()) {
             setDivisionLevel(divisionLevelMap, res.getResourceIdentifier(), 1);
         }
+        // Calculate the scaling factor for each resource
         for (ResourceIdentifier res:divisionLevelMap.keySet()) {
             double scale = (double) maxDivisionLevel / divisionLevelMap.get(res);
             resourceScaleMap.put(res, scale);
@@ -63,6 +67,16 @@
             }
         }
     }
+    /**
+     *
+     * Draw an object corresponding to the target resource on the mxGraph.
+     * @param graph The mxGraph for drawing.
+     * @param parent The parent object of the target resource.
+     * @param resourceIdentifier The ID of the target resource.
+     * @param index The index.
+     * @param length The number of sibling resources of the target resource.
+     * @return The drawing object of the target resource.
+     */
 
     private Object setLayout(mxGraph graph,Object parent, ResourceIdentifier resourceIdentifier,double index, double length){
         double width, height, x, y;
@@ -73,6 +87,7 @@
         height = width/2;
         x = parentWidth * (index - 1)/length + (parentWidth/length)*(1-MARGIN_SCALE)/2;
 
+        // Process to avoid hiding the parent's resource name
         if ((int)length == 1) {
             y = 20;
             height -=20;