restore plotting.py after backend investigations

Author: DanielGoldfarb

src/mplfinance/plotting.py

@@ -3,7 +3,6 @@
 import matplotlib.colors as mcolors
 import matplotlib.axes   as mpl_axes
 import matplotlib.figure as mpl_fig
-import matplotlib.ticker as mtk
 import pandas as pd
 import numpy  as np
 import copy
@@ -472,13 +471,6 @@ def plot( data, **kwargs ):
         if collection is not None:
             axA1.add_collection(collection)
 
-    xrotation = config['xrotation']
-    if not external_axes_mode:
-        _set_ticks_on_bottom_panel_only(panels,formatter,rotation=xrotation)
-    else:
-        axA1.tick_params(axis='x',rotation=xrotation)
-        axA1.xaxis.set_major_formatter(formatter)
-
     datalen = len(xdates)
     if config['volume']:
         vup,vdown = style['marketcolors']['volume'].values()
@@ -496,6 +488,13 @@ def plot( data, **kwargs ):
         maxy = 1.1 * np.nanmax(volumes)
         volumeAxes.set_ylim( miny, maxy )
 
+    xrotation = config['xrotation']
+    if not external_axes_mode:
+        _set_ticks_on_bottom_panel_only(panels,formatter,rotation=xrotation)
+    else:
+        axA1.tick_params(axis='x',rotation=xrotation)
+        axA1.xaxis.set_major_formatter(formatter)
+
     addplot = config['addplot']
     if addplot is not None and ptype not in VALID_PMOVE_TYPES:
         # NOTE: If in external_axes_mode, then all code relating
@@ -610,14 +609,9 @@ def plot( data, **kwargs ):
     axA1.set_ylabel(config['ylabel'])
 
     if config['volume']:
-        if external_axes_mode:
-            volumeAxes.tick_params(axis='x',rotation=xrotation)
-            volumeAxes.xaxis.set_major_formatter(formatter)
-        #volumeAxes.figure.canvas.draw()  # This is needed to calculate offset
-        volumeAxes.yaxis.set_major_formatter(mtk.FormatStrFormatter('%.0e'))
-        #offset = volumeAxes.yaxis.get_major_formatter().get_offset()
-        #volumeAxes.yaxis.offsetText.set_visible(False)
-        offset = ''
+        volumeAxes.figure.canvas.draw()  # This is needed to calculate offset
+        offset = volumeAxes.yaxis.get_major_formatter().get_offset()
+        volumeAxes.yaxis.offsetText.set_visible(False)
         if len(offset) > 0:
             offset = (' x '+offset)
         if config['ylabel_lower'] is None:
@@ -627,6 +621,9 @@ def plot( data, **kwargs ):
                 offset = '\n'+offset
             vol_label = config['ylabel_lower'] + offset
         volumeAxes.set_ylabel(vol_label)
+        if external_axes_mode:
+            volumeAxes.tick_params(axis='x',rotation=xrotation)
+            volumeAxes.xaxis.set_major_formatter(formatter)
 
     if config['title'] is not None:
         if config['tight_layout']: