Shorten some inset_locator docstrings.

We don't need to repeat the definition of `loc` again and again across
helper functions.

Author: anntzer

lib/mpl_toolkits/axes_grid1/inset_locator.py

@@ -168,24 +168,8 @@ class BboxConnector(Patch):
     @staticmethod
     def get_bbox_edge_pos(bbox, loc):
         """
-        Helper function to obtain the location of a corner of a bbox
-
-        Parameters
-        ----------
-        bbox : `matplotlib.transforms.Bbox`
-
-        loc : {1, 2, 3, 4}
-            Corner of *bbox*. Valid values are::
-
-                'upper right'  : 1,
-                'upper left'   : 2,
-                'lower left'   : 3,
-                'lower right'  : 4
-
-        Returns
-        -------
-        x, y : float
-            Coordinates of the corner specified by *loc*.
+        Return the ``(x, y)`` coordinates of corner *loc* of *bbox*; parameters
+        behave as documented for the `.BboxConnector` constructor.
         """
         x0, y0, x1, y1 = bbox.extents
         if loc == 1:
@@ -200,35 +184,9 @@ def get_bbox_edge_pos(bbox, loc):
     @staticmethod
     def connect_bbox(bbox1, bbox2, loc1, loc2=None):
         """
-        Helper function to obtain a Path from one bbox to another.
-
-        Parameters
-        ----------
-        bbox1, bbox2 : `matplotlib.transforms.Bbox`
-            Bounding boxes to connect.
-
-        loc1 : {1, 2, 3, 4}
-            Corner of *bbox1* to use. Valid values are::
-
-                'upper right'  : 1,
-                'upper left'   : 2,
-                'lower left'   : 3,
-                'lower right'  : 4
-
-        loc2 : {1, 2, 3, 4}, optional
-            Corner of *bbox2* to use. If None, defaults to *loc1*.
-            Valid values are::
-
-                'upper right'  : 1,
-                'upper left'   : 2,
-                'lower left'   : 3,
-                'lower right'  : 4
-
-        Returns
-        -------
-        path : `matplotlib.path.Path`
-            A line segment from the *loc1* corner of *bbox1* to the *loc2*
-            corner of *bbox2*.
+        Construct a `.Path` connecting corner *loc1* of *bbox1* to corner
+        *loc2* of *bbox2*, where parameters behave as documented as for the
+        `.BboxConnector` constructor.
         """
         if isinstance(bbox1, Rectangle):
             bbox1 = TransformedBbox(Bbox.unit(), bbox1.get_transform())
@@ -250,22 +208,15 @@ def __init__(self, bbox1, bbox2, loc1, loc2=None, **kwargs):
         bbox1, bbox2 : `matplotlib.transforms.Bbox`
             Bounding boxes to connect.
 
-        loc1 : {1, 2, 3, 4}
-            Corner of *bbox1* to draw the line. Valid values are::
+        loc1, loc2 : {1, 2, 3, 4}
+            Corner of *bbox1* and *bbox2* to draw the line. Valid values are::
 
                 'upper right'  : 1,
                 'upper left'   : 2,
                 'lower left'   : 3,
                 'lower right'  : 4
 
-        loc2 : {1, 2, 3, 4}, optional
-            Corner of *bbox2* to draw the line. If None, defaults to *loc1*.
-            Valid values are::
-
-                'upper right'  : 1,
-                'upper left'   : 2,
-                'lower left'   : 3,
-                'lower right'  : 4
+            *loc2* is optional and defaults to *loc1*.
 
         **kwargs
             Patch properties for the line drawn. Valid arguments include:
@@ -308,18 +259,10 @@ def __init__(self, bbox1, bbox2, loc1a, loc2a, loc1b, loc2b, **kwargs):
         bbox1, bbox2 : `matplotlib.transforms.Bbox`
             Bounding boxes to connect.
 
-        loc1a, loc2a : {1, 2, 3, 4}
-            Corners of *bbox1* and *bbox2* to draw the first line.
-            Valid values are::
-
-                'upper right'  : 1,
-                'upper left'   : 2,
-                'lower left'   : 3,
-                'lower right'  : 4
-
-        loc1b, loc2b : {1, 2, 3, 4}
-            Corners of *bbox1* and *bbox2* to draw the second line.
-            Valid values are::
+        loc1a, loc2a, loc1b, loc2b : {1, 2, 3, 4}
+            The first line connects corners *loc1a* of *bbox1* and *loc2a* of
+            *bbox2*; the second line connects corners *loc1b* of *bbox1* and
+            *loc2b* of *bbox2*.  Valid values are::
 
                 'upper right'  : 1,
                 'upper left'   : 2,