matplotlib Code

SC 31/10/2004

minor fixes

backend_ps.py: clean up the generated PostScript code, use
the PostScript stack to hold itermediate values instead of
storing them in the dictionary.

SC 31/10/2004

Fix the position of text in the PostScript output. The new FT2Font
method get_descent gives the distance between the lower edge of the
bounding box and the baseline of a string. In backend_ps the text is
shifted upwards by this amount.

minor white space fix

* backend_ps.py:
- clean up the code a lot.
- Change the PostScript output to be more DSC compliant. All
definitions for the generated PostScript are now in a
PostScript dictionary 'mpldict'.
- Moved the long comment about drawing ellipses from the PostScript
output into a Python comment.

SC 30/10/2004

SC 30/10/2004

SC 30/10/2004