matplotlib
diff --git a/‎lib/matplotlib/axes/_base.py
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+3-3Lines changed: 3 additions & 3 deletions b/‎lib/matplotlib/axes/_base.py
Copy file name to clipboardExpand all lines: lib/matplotlib/axes/_base.py
+3-3Lines changed: 3 additions & 3 deletions
diff --git a/‎lib/matplotlib/mpl-data/matplotlibrc
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+11-2Lines changed: 11 additions & 2 deletions b/‎lib/matplotlib/mpl-data/matplotlibrc
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+11-2Lines changed: 11 additions & 2 deletions
diff --git a/‎lib/matplotlib/rcsetup.py
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+18Lines changed: 18 additions & 0 deletions b/‎lib/matplotlib/rcsetup.py
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+18Lines changed: 18 additions & 0 deletions
diff --git a/‎lib/mpl_toolkits/mplot3d/axes3d.py
Copy file name to clipboardExpand all lines: lib/mpl_toolkits/mplot3d/axes3d.py
+14-4Lines changed: 14 additions & 4 deletions b/‎lib/mpl_toolkits/mplot3d/axes3d.py
Copy file name to clipboardExpand all lines: lib/mpl_toolkits/mplot3d/axes3d.py
+14-4Lines changed: 14 additions & 4 deletions
@@ -646,9 +646,9 @@ def __init__(self, fig,
             raise ValueError('Width and height specified must be non-negative')
         self._originalPosition = self._position.frozen()
         self.axes = self
-        self._aspect = 'auto'
-        self._adjustable = 'box'
-        self._anchor = 'C'
+        self._aspect = mpl.rcParams['axes.aspect']
+        self._adjustable = mpl.rcParams['axes.adjustable']
+        self._anchor = mpl.rcParams['axes.anchor']
         self._stale_viewlims = {name: False for name in self._axis_names}
         self._sharex = sharex
         self._sharey = sharey
 
@@ -424,8 +424,17 @@
 #axes.autolimit_mode: data  # If "data", use axes.xmargin and axes.ymargin as is.
                             # If "round_numbers", after application of margins, axis
                             # limits are further expanded to the nearest "round" number.
-#polaraxes.grid: True  # display grid on polar axes
-#axes3d.grid:    True  # display grid on 3D axes
+#axes.adjustable: box       # {box, adjustable}
+#axes.anchor:    C          # {C, E, N, S, W, NE, NW, SE, SW} or two-tuple of floats
+#axes.aspect:    auto       # {equal, auto} or a number
+
+#polaraxes.grid: True       # display grid on polar axes
+
+#axes3d.grid:    True       # display grid on 3D axes
+#axes3d.adjustable: box     # {box, adjustable}
+#axes3d.anchor:     C       # {C, E, N, S, W, NE, NW, SE, SW} or two-tuple of floats
+#axes3d.aspect:     auto
+#axes3d.proj_type:  persp   # {persp, ortho}
 
 #axes3d.xaxis.panecolor:    (0.95, 0.95, 0.95, 0.5)  # background pane on 3D axes
 #axes3d.yaxis.panecolor:    (0.90, 0.90, 0.90, 0.5)  # background pane on 3D axes
 
@@ -347,6 +347,17 @@ def validate_aspect(s):
         raise ValueError('not a valid aspect specification') from e
 
 
+def validate_anchor(s):
+    if s in ('C', 'E', 'N', 'S', 'W', 'NE', 'NW', 'SE', 'SW'):
+        return s
+    if isinstance(s, tuple):
+        try:
+            return (float(s[0]), float(s[1]))
+        except ValueError as e:
+            raise ValueError('not a valid anchor specification') from e
+    raise ValueError(f'not a valid anchor specification: {s!r}')
+
+
 def validate_fontsize_None(s):
     if s is None or s == 'None':
         return None
@@ -1014,9 +1025,16 @@ def _convert_validator_spec(key, conv):
     "axes.xmargin": _range_validators["0 <= x <= 1"],  # margin added to xaxis
     "axes.ymargin": _range_validators["0 <= x <= 1"],  # margin added to yaxis
     'axes.zmargin': _range_validators["0 <= x <= 1"],  # margin added to zaxis
+    "axes.adjustable": ["box", "datalim"],
+    "axes.anchor": validate_anchor,
+    "axes.aspect": validate_aspect,  # equal, auto, a number
 
     "polaraxes.grid": validate_bool,  # display polar grid or not
     "axes3d.grid":    validate_bool,  # display 3d grid
+    "axes3d.adjustable": ["box", "datalim"],
+    "axes3d.anchor": validate_anchor,
+    "axes3d.aspect": ["auto", "equal", "equalxy", "equalxz", "equalyz"],
+    "axes3d.proj_type": ["persp", "ortho"],
 
     "axes3d.xaxis.panecolor":    validate_color,  # 3d background pane
     "axes3d.yaxis.panecolor":    validate_color,  # 3d background pane
 
@@ -64,7 +64,7 @@ class Axes3D(Axes):
 
     def __init__(
             self, fig, rect=None, *args,
-            elev=30, azim=-60, roll=0, sharez=None, proj_type='persp',
+            elev=30, azim=-60, roll=0, sharez=None, proj_type=None,
             box_aspect=None, computed_zorder=True, focal_length=None,
             **kwargs):
         """
@@ -89,8 +89,12 @@ def __init__(
             scene to rotate counter-clockwise.
         sharez : Axes3D, optional
             Other Axes to share z-limits with.
-        proj_type : {'persp', 'ortho'}
-            The projection type, default 'persp'.
+        proj_type : {'persp', 'ortho'}, optional
+            The projection type, default :rc:`axes3d.proj_type`.
+
+            .. versionadded:: 3.8
+               rcParam added, in earlier versions, the default is 'persp'.
+
         box_aspect : 3-tuple of floats, default: None
             Changes the physical dimensions of the Axes3D, such that the ratio
             of the axis lengths in display units is x:y:z.
@@ -124,7 +128,7 @@ def __init__(
         self.initial_azim = azim
         self.initial_elev = elev
         self.initial_roll = roll
-        self.set_proj_type(proj_type, focal_length)
+        self.set_proj_type(proj_type or mpl.rcParams["axes3d.proj_type"], focal_length)
         self.computed_zorder = computed_zorder
 
         self.xy_viewLim = Bbox.unit()
@@ -148,6 +152,12 @@ def __init__(
                 'Use fig.add_axes(ax) instead.'
             )
 
+        if 'aspect' not in kwargs:
+            kwargs['aspect'] = mpl.rcParams("axes3d.aspect")
+        if 'adjustable' not in kwargs:
+            kwargs['adjustable'] = mpl.rcParams("axes3d.adjustable")
+        if 'anchor' not in kwargs:
+            kwargs['anchor'] = mpl.rcParams("axes3d.anchor")
         super().__init__(
             fig, rect, frameon=True, box_aspect=box_aspect, *args, **kwargs
         )