fix inconsistency in title for Nyquist plots

murrayrm · murrayrm · commit ae41977328d1 · 2024-07-28T06:54:47.000-07:00
diff --git a/control/ctrlplot.py b/control/ctrlplot.py
@@ -67,7 +67,7 @@
 #
 #     # Update the plot title (only if ax was not given)
 #     sysnames = [response.sysname for response in data]
-#     if ax == None and title is None:
+#     if ax is None and title is None:
 #         title = "Name plot for " + ", ".join(sysnames)
 #         _update_plot_title(title, fig, rcParams=rcParams)
 #     elif ax == None:
diff --git a/control/freqplot.py b/control/freqplot.py
@@ -1975,9 +1975,12 @@ def _parse_linestyle(style_name, allow_false=False):
         legend = None
 
     # Add the title
-    if ax_user is None:
-        if title is None:
-            title = "Nyquist plot for " + ", ".join(labels)
+    sysnames = [response.sysname for response in nyquist_responses]
+    if ax_user is None and title is None:
+        title = "Nyquist plot for " + ", ".join(sysnames)
+        _update_plot_title(
+            title, fig=fig, rcParams=rcParams, frame=title_frame)
+    elif ax_user is None:
         _update_plot_title(
             title, fig=fig, rcParams=rcParams, frame=title_frame,
             use_existing=False)

Original file line number	Diff line number	Diff line change
`@@ -67,7 +67,7 @@`
`67`	`67`	`#`
`68`	`68`	`# # Update the plot title (only if ax was not given)`
`69`	`69`	`# sysnames = [response.sysname for response in data]`
`70`		`-# if ax == None and title is None:`
	`70`	`+# if ax is None and title is None:`
`71`	`71`	`# title = "Name plot for " + ", ".join(sysnames)`
`72`	`72`	`# _update_plot_title(title, fig, rcParams=rcParams)`
`73`	`73`	`# elif ax == None:`