Autominorticker feature added

Aditya Sinha A · Aditya Sinha A · commit ba2c9c5d0341 · 2019-06-01T00:31:46.000+05:30
diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
@@ -233,6 +233,11 @@ def validate_int_or_None(s):
         return int(s)
     except ValueError:
         raise ValueError('Could not convert "%s" to int' % s)
+        
+def validate_int_or_auto(s):
+    if s == 'auto':
+        return s
+    return validate_int(s)
 
 
 def validate_fonttype(s):
@@ -1310,7 +1315,7 @@ def _validate_linestyle(ls):
     'xtick.minor.bottom':    [True, validate_bool],    # draw x axis bottom minor ticks
     'xtick.major.top':   [True, validate_bool],  # draw x axis top major ticks
     'xtick.major.bottom':    [True, validate_bool],    # draw x axis bottom major ticks
-    'xtick.minor.default':  [4,validate_int],   #set default value for x axis minor ticks
+    'xtick.minor.ndivs':  ['auto', validate_int_or_auto],   #set ndivs value for x axis minor ticks
 
     # fontsize of the xtick labels
     'xtick.labelsize':   ['medium', validate_fontsize],
@@ -1333,7 +1338,7 @@ def _validate_linestyle(ls):
     'ytick.minor.right':    [True, validate_bool],    # draw y axis right minor ticks
     'ytick.major.left':   [True, validate_bool],  # draw y axis left major ticks
     'ytick.major.right':    [True, validate_bool],    # draw y axis right major ticks
-    'ytick.minor.default':  [4,validate_int],   #set default value for y axis minor ticks
+    'ytick.minor.ndivs':  ['auto', validate_int_or_auto],   #set ndivs value for y axis minor ticks
 
     # fontsize of the ytick labels
     'ytick.labelsize':   ['medium', validate_fontsize],
diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
@@ -2634,7 +2634,15 @@ def __init__(self, n=None):
 
         If *n* is omitted or None, it will be set to 5 or 4.
         """
-        self.ndivs = n
+        if n == None:
+            if self.axis.__name__ == 'x':
+                self.ndivs = rcParams['xtick.minor.ndivs']
+            elif self.axis.__name__ == 'y':
+                self.ndivs = rcParams['ytick.minor.ndivs']
+        elif n == 'auto':
+            self.ndivs = None
+        else:
+            self.ndivs = n
 
     def __call__(self):
         'Return the locations of the ticks'
@@ -2658,9 +2666,9 @@ def __call__(self):
             majorstep_no_exponent = 10 ** (np.log10(majorstep) % 1)
 
             if np.isclose(majorstep_no_exponent, [1.0, 2.5, 5.0, 10.0]).any():
-                ndivs = rcParams['xtick.minor.default'] + 1
+                ndivs = 5
             else:
-                ndivs = rcParams['xtick.minor.default']
+                ndivs = 4
         else:
             ndivs = self.ndivs
 
diff --git a/matplotlibrc.template b/matplotlibrc.template
@@ -377,7 +377,7 @@
 #xtick.minor.top      : True   ## draw x axis top minor ticks
 #xtick.minor.bottom   : True   ## draw x axis bottom minor ticks
 #xtick.alignment      : center ## alignment of xticks
-#xtick.minor.default  : 4	   ## set default value for x axis minor ticks
+#xtick.minor.ndivs    : auto   ## set ndivs value for x axis minor ticks
 
 #ytick.left           : True   ## draw ticks on the left side
 #ytick.right          : False  ## draw ticks on the right side
@@ -398,7 +398,7 @@
 #ytick.minor.left     : True   ## draw y axis left minor ticks
 #ytick.minor.right    : True   ## draw y axis right minor ticks
 #ytick.alignment      : center_baseline ## alignment of yticks
-#ytick.minor.default  : 4	   ## set default value for y axis minor ticks
+#ytick.minor.ndivs    : auto   ## set ndivs value for y axis minor ticks
 
 #### GRIDS
 #grid.color       :   b0b0b0    ## grid color
