DOC : move MEP15

matplotlib · efiring · Mar 30, 2015 · Mar 28, 2015 · Mar 28, 2015 · Mar 28, 2015
commit c2cbbc94a38c6f850ae1ede3fae9ed916083cc10
diff --git a/doc/devel/MEP/MEP15.rst b/doc/devel/MEP/MEP15.rst
@@ -0,0 +1,58 @@
+==========================================================================
+ MEP15 - Fix axis autoscaling when limits are specified for one axis only
+==========================================================================
+
+.. contents::
+   :local:
+
+Status
+======
+
+**Discussion**
+
+Branches and Pull requests
+==========================
+
+None so far.
+
+Abstract
+========
+
+When one axis of a 2-dimensional plot if overridden via `xlim` or `ylim`,
+automatic scaling of the remaining axis should be based on the data that falls
+within the specified limits of the first axis.
+
+Detailed description
+====================
+
+When axis limits for a 2-D plot are specified for one axis only (via `xlim` or
+`ylim`), matplotlib currently does not currently rescale the other axis.  The
+result is that the displayed curves or symbols may be compressed into a tiny
+portion of the available area, so that the final plot conveys much less
+information than it would with appropriate axis scaling.  An example of such a
+plot can be found at the following URL:
+
+http://phillipmfeldman.org/Python/MEP15.png
+
+The proposed change of behavior would make matplotlib choose the scale for the
+remaining axis using only the data that falls within the limits for the axis
+where limits were specified.
+
+Implementation
+==============
+
+I don't know enough about the internals of matplotlib to be able to suggest an
+implementation.
+
+Backward compatibility
+======================
+
+From the standpoint of software interfaces, there would be no break in
+backward compatibility.  Some outputs would be different, but if the user
+truly desires the previous behavior, he/she can achieve this by overriding
+the axis scaling for both axes.
+
+Alternatives
+============
+
+The only alternative that I can see is to maintain the status quo.
diff --git a/doc/devel/MEP/index.rst b/doc/devel/MEP/index.rst
@@ -18,4 +18,5 @@ Matplotlib Enhancement Proposals
    MEP12
    MEP13
    MEP14
+   MEP15
    MEP25
-Original file line number
+Diff line change
@@ Expand Up / @@ -18,4 +18,5 @@ Matplotlib Enhancement Proposals @@
        MEP12
        MEP13
        MEP14
+       MEP15
        MEP25