Fix plot_wingbox.py to work for matplotlib v3.8+ (#424)

Author: shamsheersc19

openaerostruct/utils/plot_wingbox.py

@@ -1,7 +1,10 @@
 """
-
+This is a custom script for visualizing the optimization results when using the wingbox structural model.
 This only works when using the wingbox model with MULTIPOINT analysis/optimization.
+Modifications will be necessary when moving away from the intended optimization problem formulation,
+and this can be used as a starting point.
 
+The usage, for example, if running a case from the `examples` directory would be `python ../utils/plot_wingbox.py aerostruct.db`.
 """
 
 
@@ -588,14 +591,6 @@ def plot_sides(self):
     def plot_wing(self):
         n_names = len(self.names)
         self.ax.cla()
-        az = self.ax.azim
-        el = self.ax.elev
-        dist = self.ax.dist
-
-        # for a planform view use:
-        # az = 270
-        # el = 0.
-        # dist = 15.
 
         for j, name in enumerate(self.names):
             # for wingbox viz
@@ -760,8 +755,7 @@ def plot_wing(self):
                 color="k",
             )
 
-        self.ax.view_init(elev=el, azim=az)  # Reproduce view
-        self.ax.dist = dist
+        self.ax.view_init()  # Reproduce view
 
     def save_video(self):
         options = dict(title="Movie", artist="Matplotlib")