[plotter] add basic movie feature

plotter.py

@@ -26,6 +26,7 @@ if os.environ.get("DISPLAY", "") == "":
 import datetime
 
 import matplotlib.pyplot as plt
+from moviepy.video.io import ImageSequenceClip
 
 import pspec_read
 from baseprocessor import Rule, BaseProcessor
@@ -265,6 +266,8 @@ class Plotter(Aggregator, BaseProcessor):
         select=None,
         ax=None,
         from_cells=False,
+        movie=False,
+        movie_fps=15,
         **kwargs,
     ):
         """
@@ -373,6 +376,14 @@ class Plotter(Aggregator, BaseProcessor):
                     self.simulations[run].snapshots.add(snap)
 
             datafiles.append(df)
+
+        if movie:
+            filenames = [df[filetype] for df in datafiles]
+            clip = ImageSequenceClip(filenames, fps=movie_fps)
+            movie_filename = self._find_filename(name_full)
+            movie.filename = os.path.splitext(movie_filename)[0] + ".mp4"
+            clip.write_videofile(movie_filename)
+
         return datafiles
 
     def _plot_rule(