[pstricks] not backwards compatible
msharpe at ucsd.edu
Mon Oct 20 03:52:03 CEST 2008
Backwards compatibility is a fine goal, but may not be truly possible.
Bugs cannot always be fixed and improvements cannot always be
constructed without side effects, especially in a language as singular
as TeX. With the changes over the years in TeX, TeX fonts and their
metrics, style files and all the rest, practically nothing I wrote in
TeX over 20 years ago comes out exactly the same when processed now.
For example, I wrote a book in the mid 80's that is now out of print,
and I am unable to duplicate the page layout of the original---it used
the Almost Modern fonts and the original AMSTeX 1.0, none of which I
can duplicate exactly now.
In generating and saving graphics, my experience is that the eps
format is the most unchanged over the last 20 years. I save all
PTricks output as eps as well as pdf, so that I can at the very least
edit the eps file with a tool like Adobe Illustrator, making use of
psfrag if necessary to substitute the font or wording of labels, even
if the original pstricks document produces different output than it
I remember how exciting it was when the original PSTricks appeared,
and thanks to the continuing work of Herbert and other experts, it
continues to be a most useful tool for mathematical illustration.
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