Re: [matplotlib-devel] minor fixes to backend_ps

[Jochen V. <vo...@se...>]

Hello John,

On Tue, Oct 19, 2004 at 09:37:37AM -0500, John Hunter wrote:
> For my information, what ps viewers/printers were giving you trouble.
None, I looked at the generated PS file out of curiosity and
noticed that it does not follow the DSC conventions very well.
As this is just shuffling around comments it will probably
not affect many applications.

> Finally, by changing the version information to
>=20
>             pstype =3D 'PS-Adobe-3.0 EPSF-3.0'
>=20
> will we break devices that only support PS level II?
I do not think so.  It is only a change to comments and not to the
actual PostScript code.  It will only affect applications which try to
parse the DSC comments and do not understand DSC version 3.

I changed this because the document at

    http://partners.adobe.com/asn/developer/pdfs/tn/5001.DSC_Spec.pdf

which defines DSC version 3 is dated "25 September 1992", which seems
quite old to me.  If you feel more comfortable using DSC version 2 we
could either try to reverse engineer the version 2 specification using
the "Changes Since Earlier Versions" chapter in above document or try
to find a DSC 2 specification somewhere.

All the best,
Jochen
--=20
http://seehuhn.de/