From 1ca4a035bae9621bc7a3d0525d76faa1d9b6a34a Mon Sep 17 00:00:00 2001
From: Nirjhar Das <69003365+nirjhar-das@users.noreply.github.com>
Date: Thu, 29 Apr 2021 04:12:27 +0530
Subject: [PATCH] Updated rlocus.py to remove warning by sisotool with
 rlocus_grid=True

At line 239 in rlocus.py parameter passed to _sgrid_func() has been corrected. It was giving error when calling sisotool() with parameter rlocus_grid=True.
---
 control/rlocus.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/control/rlocus.py b/control/rlocus.py
index bad243292..4f83c019b 100644
--- a/control/rlocus.py
+++ b/control/rlocus.py
@@ -236,7 +236,7 @@ def root_locus(sys, kvect=None, xlim=None, ylim=None,
             if isdtime(sys, strict=True):
                 zgrid(ax=ax)
             else:
-                _sgrid_func(f)
+                _sgrid_func(fig=fig)
         elif grid:
             if isdtime(sys, strict=True):
                 zgrid(ax=ax)