Post by iconPost by PatH | 2012-01-02 | 16:40:48

Hi Cvetan,

I understand the various durations extend how far out in time you wish to have the model look, but i'm interested in what other differences are in included in their AI. Clearly in cycling through different "durations" give me different choices (even when the target is within range of all durations selected). It almost seems that the 1 day forecast allows for shorter tacks (10 mins) whereas others are more limited. Are there "preferences" programmed into the different duration models other than just the duration?

I still love the site... I hope donations are still dribbling in.

Pat

commenticon 4 Comments
Post by iconPost by zezo | 2012-01-04 | 14:11:45
This comes from the fact that different duration is run wit different time step. 7 days uses 1-hour step and you just can't have integer number of 1-hour steps if you run the program at random point in time. It's only correct if you run it in the first minutes of the hour.

The proper fix for that is to make the time step variable - use 10 minutes for the first 12 hours of all forecasts and then increase it depending of the interval. But it involves serious rewrite because the step is hardcoded in the current version.
Post by iconPost by PatH | 2012-01-04 | 21:13:26
Thanks Cvetan. That is very insightful. It makes sense about needing to be run the 7 day plan in the early parts of the hour to be accurate when running a 7 day plan.

If the one day plan used a 10 minute timestep, and the 7 day plan uses a 1 hour timestep, what are the various timesteps used for the 2, 3, and 5 day plans?

Thanks again. Awesome tool.
Post by iconPost by zezo | 2012-01-04 | 21:44:45
2 and 3 days use 20-minute step, 5 days uses 30 minutes.
Post by iconPost by PatH | 2012-01-04 | 22:02:24
Outstanding. Thanks very much!
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Expanded View on PC
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Panic at VR Nord
7
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Delays during the sail changes, or directions changes
3
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(Game wind = Zezo wind ) ⍯ (Grib winds = Windy.com)
7
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VR ending the ELO ranking.
34
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NMEA feed
128
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Dashboard Map Track Label not including the segment.tag
5
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VR ingame time
6
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VIRTUAL REGATTA and Phillip Ganier. Worst and worst every day...
7
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beta.realsail.net
2
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Escort Frigate
6
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Out of memory. If you are the developer of this content ....
17
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Question about GFS Grib
5
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RORC Caribbean 600
14
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sliding VSR
16
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Trying to use Zezo to select best combination of sails to select
7
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TARA OCEAN 3
9
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RORC Transatlantique Race
6
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Game appears stuck on 00Z weather from yesterday
4
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Sydney to Auckland
28
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Personal Message pages deleted
7
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New zezo fonction
2
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VR Ranking 2021
7
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Autosail malfunction
3
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Comments from a newbie to "long term" routing
1
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Massive thanks to Cvetan
7
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Fleet section mode record not working
2
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Possible routes on the Map tab
3
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Purple skippers on VR Dashboard
3
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UTC or CET time ?
2
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multiple routes?
2
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Real Sail
4
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Map a little gloomy
8
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Trophée Jules Verne - Route à l'envers ?
2
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Looks like weather updates offline for next 18h
26
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Bring the good old days back
7
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All.grib 0.0k ?
9
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different speed
3
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Strange 0.5 mille VR Scale
3
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Just an idea for a new feature...
7
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Connexion impossible
1
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Donations
7
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New leader - seems to be using Zezo
38
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Bravo Zezo
4
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zezo : Huge job - Huge thx
2
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Difference between boat speed display on VR, dashboard and polar curves
7
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Vendée Globe: Track lines falling too short of ischrones
8
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Tara Ocean
29
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VR winds currently not up to date ?
1
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"Sails Change" within the Programming
3
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RORC Transat finish moved to Antigua
3
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Weather update not appearing...
19
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Dashboard not updating.
6
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Boats Skins Vendée Globe
3
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Safari on iOS: Bearing lines gone
3
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Wrong coordinates in zezo
2
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Winds in the chart do not show changes between 78 hours and 114 hours forecast
2
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Decoding of All grib
6
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I CANNOT ENTER FOR 3 HOURS IN THE GAME
23
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Why the vc data is yellow underlined ?
3
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Jules Verne 2020 - "Start NOW" discrepancy VS real time
7
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Would like to know the reasenable time to update your pisition on zezo
16
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Arrival Vendée Globe in Normandy !!?
4
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MIssing the Obvious: How to get Zezo routes back into VR
2
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VG 2020-01-02 has Zezo a problem with geographic or ...
8
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How to retrieve a waypoint (TWA/HDG) that already passed...
16
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Track duration window
3
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Ways to bypass the client to give orders?
6
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Problem to Load zero route in windy.com
40
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French tutorial for zezo
4
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boat positioning
2
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Export routes in GPX format ?
4
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Sail selection issue ?
11
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Your friends boats in Google Earth
2
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Delay in Wind update ?N
1
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VR Dashboard
54
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