Forgot the test if region is large enough to do a SUPERMESH plot.

RoutingPreProc.py

@@ -161,7 +161,8 @@ if nbcore == 1 :
 print("=================== LINKUP ====================")
 hsuper.linkup(hydrodata)
 if nbcore == 1 :
-    DP.SUPERMESHPLOT("MapSuperGrid_Afterlinkup", lonint, latint, hoverlap, hsuper, modelgrid.polyll)
+    if lonint[0] != lonint[1] and latint[0] != latint[1] :
+        DP.SUPERMESHPLOT("MapSuperGrid_Afterlinkup", lonint, latint, hoverlap, hsuper, modelgrid.polyll)
 
 #
 # Do some memory management and synchronize procs.