[matplotlib-devel] arbitrary spine locations in svn trunk

[Andrew S. <str...@as...>]

I've gone ahead and committed my arbitrary spine location implementation
to the trunk (svn r7144). I'd appreciate it if you could kick the tires.
To get you started, try the new demo:
examples/pylab_examples/spine_placement_demo.py

I believe I addressed all the issues raised with the patch I emailed the
list last week and I tried to avoid any breakage. Thanks to all who
commented -- you made this a better implementation.

Note that Axes.frame no longer exists, and I made a note of this in
api_changes.rst and a hopefully carefully worded AttributeError will be
raised if you try to access it.

Also, as excercised by the demo, in addition to support for a offset of
spines specified in points, one may specify spine placement in both axes
and data coordinates. Here is the docstring for Spine.set_position:

"""
set the position of the spine

Spine position is specified by a 2 tuple of (position type,
amount). The position types are:

* 'outward' : place the spine out from the data area by the
  specified number of points. (Negative values specify placing the
  spine inward.)

* 'axes' : place the spine at the specified Axes coordinate (from
  0.0-1.0).

* 'data' : place the spine at the specified data coordinate.

Additionally, shorthand notations define a special positions:

* 'center' -> ('axes',0.5)
* 'zero' -> ('data', 0.0)
"""

As always, please let me know of any suggestions or comments.

-Andrew