Cape Horn route is not possible it is crossing land
Post by iconPost by LaRe-Belle | 2020-12-23 | 21:29:19

Cape Horn route is not possible the routing is crossing land just above the Cape Horn and it is important to adapt your map according to the VR Map.
Thank you a lot for everything

LaRe-Belle

commenticon 5 Comments
Post by iconPost by jf44 | 2020-12-24 | 10:08:39
Probably you are to far from Cape Horn.
Cvetan has yet answered many times that the route will be correct when you'll be nearer.
Post by iconPost by Ormetkruper | 2020-12-24 | 10:48:55
I think Cvetan said once that the map projection is not the same beteween VR and Zezo. Just try to follow the route in VR as good as you can to avoid land. Always do that near land because zezo is best in open sea.
Post by iconPost by BooBill | 2020-12-24 | 14:13:00
I did notice yesterday that the Zezo route did appear to want to go through an area that was solid land in the VR maps.

Regardless, it's best to just get a general idea from the router and manually fit something in that works around the land. Zezo uses a 10 minute time step in the short-term, where as you can do 1 minute changes in the game. Normally, in steady winds you would want to use waypoints for precision. However, as I went through the Cape yesterday, winds were varying 6 or 7 knots between inside gybes and outside gybes, each with different max VMG angles. That necessitated multiple programmation moves on each tack and constant monitoring and adjustment. I'm just happy it happened during the North American evening. I imagine the European leaders were up all night.
Post by iconPost by Hardtack | 2020-12-24 | 14:16:14
A precise land check is of course possible, theoretically, but
a) it is very expensive - the router has to check millions of points for each routing. Likely zezo made some simplifications (like using more coarse-grained coastlines) to make the router fast enough to serve thousands of users.
b) VR doesn't disclose which map data they're using. We know for sure their map differs from Google map. Some users figured it out and overlayed it on VR Dashboard. A screenshot surfaced on the VR forum a couple of month ago but it seems they don't want to make it available to all.
Post by iconPost by LaRe-Belle | 2020-12-25 | 00:47:41
Thank you for all your advices! Best wishes for Christmas.
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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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Colone Tile red
3
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Destination setting - Fixer la destination
2
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Anyone else experiencing erratic course changing behavior?
9
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Looks like game winds not updating.
6
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difference between wind on he map and wind on the route
8
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Cape Horn route is not possible it is crossing land
6
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Lost the lines..
2
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all.grb question
3
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2 routings ?
1
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What point or line is being used to determine the rankings?
61
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180 degree bug and downwind track
11
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démarrer avec zezo au milieu de la course
2
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Local times in the charts
1
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red and green lines ahead of isochrones
13
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20 Minute tack
6
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nemo point challenge problem
8
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Nemo Point Challenge
51
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Point Nemoers
1
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Route doesn't give prediction over 24h anymore
7
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Iterations on server & Zezo
5
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Sidney-Hobart 2020
3
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To day zezo don’t give me any route
6
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Fatal Grib error tonight ?
2
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predicted times JV
3
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Loick Peyron uses zezo, the best virtual sailing router ;)
9
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Orthodromy vs loxodromy around the poles
6
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Strange 1st dot heading
3
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Campbell Island
4
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VR bugs and rants
11
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Cap constant, ou angle au vent ? Constant heading, or wind angle?
18
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Colors of wind in the chart
4
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Virtual Regatta API
2
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Compliment
12
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Cap Horn bug
3
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New forecast unavailable
32
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