Date: Wed, 14 May 1997 19:37:58 -0400
From: Robert Jasiek <jasiek@berlin.snafu.de>
Subject: FG flags

Please accept my apologies for the very late discussion about 
FG. Before having read draft 10 I did not have the slightest 
idea what could have been meant with the FG property values.
Only now I know, why flags are needed and very useful.

FG has a good specification. However, now I think it might be
even better. Whether or not all or part of the following
should be part of SGF or only of a client's user interface,
is not quite clear to me. So please comment.

- game infos on/off (value: 0/128)
- comment on/off (value: 0/256)
- border closed/open (value: 0/512)
  border closed means: grid has border line on edges with no
  crossing lines.
  border open means: grid has no border line on edges different
  from minimal/maximal coordinates of board size and half lines
  goto outside
- hoshi dots on/off: (value: 0/1024)
- thick borderline on/off: (value: 0/2048)
- list all move1 on move2 cases on/off: (value: 0/4096)
- list all ko captures on/off: (value: 0/8192)
- list lists sequential / grouped as to first placed stone:
(value: 0/16384)
- show # captures on/off: (value: 0/32768)

Printing has more characteristics. With a further property PS
for Printing style reediting of diagrams' printing formats
would become superfluous (optional). Color, Size (mmxmm),
Place_Upper_Left_Corner, Places_Of_Parts_Of_Print. I mean
the layout of a whole book could be in SGF without need for
further graphics programs. (Seems PS is too late for FF[4],
but part of the FG extensions can still be included.)

BTW, many, many thanks to Arno for his great help!

--robert jasiek