Re: [Scidvspc-devel] Patch2: MultiPV traffic lights for boards, inturn Enabled for Analysis Board

[C H. M. <han...@gm...>]

Hi Steve,

The MultiPV-TrafficLights divides a single bar into multiple blocks
based on the number of PVs in the multipv and inturn paints each block
within it based on the score wrt the corresponding pv. Thus a single
multicolor (if needed) bar, giving a summary status wrt all PVs in the
MultiPVs in one go.

In the image which you attached, because all the 4 PVs have similar
scores around 0, the full bar is yellow. The PV1 disappearing is more
of the separate eval bar, which is independent of the
multipv-trafficlights and which is disappearing for some reason on
your mac, which you are using. On linux I can see both the eval bar as
well as the multipv trafficlights bar. I will check if the
disappearing eval bar issue is there on windows (wsl).

I am also attaching the image of a position, where all 3 colors and
shades are there, bcas what will be the next move will decide whether
the game will move/tend towards an advantageous position or balance or
losing position.

On Thu, Dec 26, 2024 at 9:52 AM Steve A <ste...@gm...> wrote:
>
> Hmmm. Just doesnt work on my mac. (I'll test it out later on my linux box., so sorry for being lazy)
> PV1 is always disappearing, and only yellow shows up.
> Pic attached
>
> I know knowing how sharp a line is is desirable, but i'm not sure traffic lights are the best solution.
>
>
>
> On Thu, Dec 26, 2024 at 9:58 AM C Hanish Menon <han...@gm...> wrote:
>>
>> Hi,
>>
>> Eval bar gives position score wrt the main pv only, while with the
>> faster comps and engines and thus in turn multipv, there is additional
>> info like how good or bad or tricky a position is etc.
>>
>> Inturn to show the same to user in a simple and straightforward way,
>> have added generic support for a additional bar next to eval bar,
>> which shows the scores wrt all the PVs in a MultiPV in terms of
>> Red-Yellow-Green traffic light summary wrt each PV, next to one
>> another. So by looking at the color pattern one can get a quick hint
>> has to whether the position is good or bad for white or black and also
>> how sharp or not the position may be and so.
>>
>> The same is enabled for AnalysisBoard, which will be driven from the
>> corresponding engine's MultiPV.
>>
>>
>> On Thu, Dec 26, 2024 at 5:13 AM C Hanish Menon <han...@gm...> wrote:
>> >
>> > Hi,
>> >
>> > This patch adds generic support for showing eval bar wrt any specified
>> > board. Inturn the same is enabled for analysis boards and the main
>> > pv's score is shown as the evalbar.
>> >
>> > Have implemented two different versions of eval bar, one is a simple
>> > linear one and another is a combination of linear+logarithmic one.
>> >
>> > The simple linear version shows the eval bar linearly wrt -4 to 4 with
>> > clipping of values beyond it
>> >
>> > The linear+log version shows a linear movement wrt -1 to 1 which maps
>> > to being adjacent to the 4 and 5 rows, and a logarithmic movement for
>> > beyond. The log values are mapped such that crossing 3 and 6 rows map
>> > to be equivalent to gaining or losing a minor piece and 2 and 7 rows
>> > map to gaining or losing 10 points, and remaining beyond.
>> >
>> > Currently I havent tried to enable this for MainBoard. As one may want
>> > to add an option entry to menu or buttons bar or ...
>> >
>> > --
>> > Keep ;-)
>> > HanishKVC
>>
>>
>>
>> --
>> Keep ;-)
>> HanishKVC



-- 
Keep ;-)
HanishKVC