[Bug-gnubg] Feature request --Pip Graph

[Shiotani, Kazuhiko [FI]]

One suggestion I would like to make is 
to have a pip graph of a game. 
this is a simple graph in that the X axis would have 
the number of rolls played and the Y axis would have pips left. 
the curve that would result will be a downward sloping 
curve from left to right.  You will have two curves for each 
player. I think this kind of graph would have several  useful functions. 

(1) in reviewing the game, it would serve as a a way to quickly find
the "inflection point" of a game. This is very similar to the 
"equity evolution" graph of Snowie, but it would require no
calculation of equity, so should run easily.
It would be great if you would be able to jump to that roll in the analysis
by clicking on the pip graph. Snowie does not have any such function.

(2) it would have value as an educational tool for beginners/intermediates
such as myself who still have trouble with the concept of 
"racing when ahead, staying back when behind" or 
timing. I have made several pip graphs using  excel and 
it has helped me to think about races, holding games, prime vs prime 
situations. 

Backgammon is a very dynamic game yet almost all the analysis 
tools are visually static. by adding something like the "pip graph",
it should make it more interesting to analyse. 

thanks
-- Kaz Shiotani
Tokyo Japan