[Printing-architecture] OPVP spec RC4

[Ira McDonald]

Hi,

My congratulations to the OP Japan team for all your efforts!  When I
return home from the Linux Foundation Collaboration Summit, I'll sit
down next week and read carefully over the spec.

Thanks very much,
- Ira

On 6/14/07, Osamu MIHARA <osamu.mihara at fujixerox.co.jp> wrote:
> Hi,
>
> Toratani-san has posted the latest update of vector driver API spec.  It
> is the result of big efforts of OPWG Japan members in these several months.
>
> ftp://ftp.pwg.org/pub/pwg/fsg/vector/pdapi-spec-1.0rc4.odt
> ftp://ftp.pwg.org/pub/pwg/fsg/vector/pdapi-spec-1.0rc4.pdf
>
> Massive parts are reviewed and improved.  The change list is not
> attached at the end of the document, due to the time limitation, here is
> the main changes since RC2/RC3.
>
> # Toratani-san, we should make a document to describe the changes
> # of spec from version 0.2 to 1.0.
>
> - Improve English expressions.
>
> - Rewrite introduction section.
>
> - Raster operation (ROP) functions are removed, since it does not
> directly reflect the graphics model of PDF or PostScript. Because the
> mapping scheme of superposition of graphical elements from
> PDF/PostScript to ROP is ambiguous in the previous spec., and it causes
> some artifact problems with vector printer driver implementations.  We
> review the related functions carefully and confirmed that ROP is not
> essential factor for our model and removing it does not cause problems
> in the aspect of function and performance.
>
> - Remove unnecessary sentences and paragraphs.
>
> - All descriptions are rewritten to remove ambiguities, using RFC2119
> definition (MUST/SHOULD/MAY...).
>
> - Parameters for bitmaps and brushes are reviewed and rearranged.
>
> - Some figures are added for clarification of concepts of functions.
>
> - Etc. etc. etc.....
>
> Please review the spec. and post the feedback to this mailing list.
>
> Thank you!
>
> --
>    Osamu Mihara // Fuji Xerox
>
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-- 
Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Blue Roof Music / High North Inc
PO Box 221  Grand Marais, MI  49839
phone: +1-906-494-2434
email: blueroofmusic at gmail.com