debug handle singletons in layout

app.py

@@ -172,22 +172,35 @@ for i in range(len(neighbors.index)):
 layout = nx.spring_layout(G)
 
 
+
+
 node_color_lut = {
     "seed" : "#4866F0",    # blue
     "neighbor" : "#F0C547" # gold
 }
 
 elements = []
+singleton_index = 0
 for i in range(len(node_info.index)):
     node = node_info.iloc[i]
+
+    if False: #node["gene_index"] in layout.keys():
+        layout_x = layout[node["gene_index"]][0] * 600 + 1500/2
+        layout_y = layout[node["gene_index"]][1] * 600 + 1500/2
+    else:
+        layout_x = (singleton_index %% 10) * 150
+        layout_y = (singleton_index / 10) * 50 + 200
+        singleton_index += 1
+
+    
     elements.append({
         "data": {
             "id": node["gene_id"],
             "label": node["gene_name"] if node["gene_name"] is not None else node["gene_id"],
             "color": node_color_lut[node["gene_type"]]},
         "position": {
-            "x" : layout[node["gene_index"]][0] * 600 + 1500/2,
-            "y" : layout[node["gene_index"]][1] * 600 + 1500/2}})
+            "x" : layout_x,
+            "y" : layout_y}})
 
 for i in range(len(neighbors.index)):
     edge = neighbors.iloc[i]