parametrize output directory

src/lclayout/graphrouter/inspect.py

@@ -23,9 +23,10 @@ class InspectRouter(GraphRouter):
 
     def __init__(self,
                  sub_graphrouter: GraphRouter,
-                 plot_to_files = True):
+                 plot_to_files = True,
+                 output_dir: str = "/tmp"):
         self.sub_graphrouter = sub_graphrouter
-        self.output_dir = "/tmp"
+        self.output_dir = output_dir
         self.plot_to_files = plot_to_files
         self.iteration_count = 0
         self._graph = None