tweaked function naming

lib/network/modules/LayoutEngine.js

@@ -331,7 +331,7 @@ class LayoutEngine {
         if (this.body.nodes.hasOwnProperty(nodeId)) {
           node = this.body.nodes[nodeId];
           if (node.edges.length === hubSize) {
-            this._setLevel(0, node);
+            this._setLevelByHubsize(0, node);
           }
         }
       }
@@ -347,7 +347,7 @@ class LayoutEngine {
    * @param parentId
    * @private
    */
-  _setLevel(level, node) {
+  _setLevelByHubsize(level, node) {
     if (this.hierarchicalLevels[node.id] !== undefined)
       return;
 
@@ -360,7 +360,7 @@ class LayoutEngine {
       else {
         childNode = node.edges[i].to;
       }
-      this._setLevel(level + 1, childNode);
+      this._setLevelByHubsize(level + 1, childNode);
     }
   }