Zezo forum:

Post by zezo | 2017-10-30 | 13:59:03

I've made a subtle change in the router algorithm:

The behavior at optimum TWAs is now slightly different.

Previously, with optimum at e.g. 141, TWA 140 would be omitted from the list of possible sailing directions. That would increase the chance to sail at the optimum, but then if that got lost in the noise the router would choose 135 as next possibility.

It should not affect the routing in general, and you should always be checking the polars when sailing at the optimum TWA, it's just something to keep in mind because changes can also introduce new bugs and off-by-one errors.

17 Comments

Post by zezo | 2017-10-30 | 14:03:59

I also tried to unify the code base for the different boats, because they had drifted apart with the ongoing game changes. That means some things are not tested and there may be small cosmetic issues like wrong sail names and the like Please drop me a note via email to zezo @ this domain or the feedback form if you see something.

The foils are now integrated into the track tool, so the track should match the isochrones with the checkbox both on and off.

I'll fix the polar chart display too, but my day-job also requires some attention.

Post by zezo | 2017-10-30 | 14:08:18

It also looks like the current races will benefit from a 16-day routing possibility.

Especially the Mini had two possible tracks around an anticyclone few days ago. That may not be the case at the start, but still it will be nice to have.

I'll try to bring that option back before the next race start.

Post by Inicio | 2017-10-30 | 14:59:35

Thanks!!!!!!!

Post by pmangino | 2017-10-30 | 15:11:21

Thx Cvetan..!!!

Post by zezo | 2017-10-30 | 16:06:55

Hmm boat speed in Clipper does not match. Will have to check the polars again.

Post by zezo | 2017-10-30 | 16:24:11

They use the proper polars now instead of Imoca Open 60. Fixed.

Post by GeGaX | 2017-10-30 | 16:39:58

Hi Cvetan,

Thanks for all these changes ;)

If you want to see quickly and easily if there are any errors on the names of the sails, you can download the extension 'Route zezo' on the chrome web store.

(I do not advertise for this one but it can be useful, I only put the 7 sails available on VR, if the background color remains white is that it is not a sail refereed in VR )

Edit :
Name of 'Pro Sails'
Good for VOR / TJV / Mini Transat ( Leg 1 ) , not good for Clipper / Mini transat (Leg 2)

Post by zezo | 2017-10-30 | 16:48:07

Oh, I can easily check it:

grep name leg2_polar.js
"name": "JIB",
"name": "SPI",
"name": "STAYSAIL",
"name": "LIGHT_JIB",
"name": "CODE_0",
"name": "HEAVY_GNK",
"name": "LIGHT_GNK",

But those things are hardcoded in 2 different places (polars.js and a config file for the router) and that makes 8 files to get in sync for 4 races.

Post by GeGaX | 2017-10-30 | 16:57:49

CLIPPER :

Post by GeGaX | 2017-10-30 | 17:05:50

MINI TRANSAT ( LEG 2 ) :

Post by GeGaX | 2017-10-31 | 02:04:55

The files 'polars.js?7' for the Clipper and the Mini Transat are OK so these are the config files of the router that are not up to date ;)

Post by zezo | 2017-10-31 | 07:50:11

I'll probably split polars.js into two parts, with a 2-liner config, so the rest can be maintained separately.

Post by GeGaX | 2017-10-31 | 22:52:04

Hi Cvetan,
What change did you make on the Clipper?
I can not extract the route with my extension ... but I can do it on all the other races ... :'(
I just realized it by watching if you made the modifications of the config files concerning the sails