Facebook

Login

Support Sailonline

If you haven't already - join the SAILONLINE YACHT CLUB!

Please also consider making a donation - all amounts are greatly appreciated!

Board » Technical Support » qtVlm thread

Page: First Previous 3 4 5 6 7 8 9 Next Last

Posted by
maitai


Users avatar

Posts
114
Registered at
2016-02-25 08:15:33
2016-10-09 16:02:50 - Re: qtVlm thread
FYI there was some changes (fixes) in instruments (gauges) concerning TWA/TWD/AWA/AWD etc and since I remember there was once some problems with SOL can you please check nothing is broken? I don't have a boat racing so I cannot test it myself.
Thanks
Philippe
Posted by
peskasail


Users avatar

Posts
1
Registered at
2014-07-22 18:11:02
2016-10-09 17:37:16 - Re: qtVlm thread
qtVLM 5.4.0-beta4 quick tests with sol. Intruments ok with brainaids and kipper's AG tool. Routing seems to work as expected also. Couldn't find any problems.
TWA number when wind is from the port, is colored green (not red). Is this ok?
Posted by
maitai


Users avatar

Posts
114
Registered at
2016-02-25 08:15:33
2016-10-09 18:20:14 - Re: qtVlm thread
Yes it is normal. You have a small round icon red/green that shows port/starboard. Green in the numbers means it's within the polar angles. Numbers become red if not (for instance if you go upwind at 5° twa)
Thanks for testing I was a bit worried about that one ;)

Philippe.
Posted by
JB


Users avatar

Posts
305
Registered at
2013-03-07 08:54:34
2016-10-10 09:57:37 - Re: qtVlm thread
Viva Philippe and all.

In general I feel some improvements in qT (5.4.0-beta4) routing process.
I also see that one my previous suggestions - related with the CSV output files columns - were also implemented.

Anyhow, some qT problems remain and they are described in the PDF attached file.

I didn't find out where you: "Add a possibility to compare actual boat's speed with polar speed in board".

Thank you Philippe.


--- Last Edited by JB at 2016-10-10 10:08:01 ---
Sail Fair.
Attachments
Posted by
dikkehenk


Users avatar

Posts
66
Registered at
2012-02-24 15:03:37
2016-10-11 08:16:50 - Re: qtVlm thread
Psail, are you sailing the SOL boat ? :)


ps, the beta runs fine here.

--- Last Edited by dikkehenk at 2016-10-11 08:46:12 ---
Posted by
maitai


Users avatar

Posts
114
Registered at
2016-02-25 08:15:33
2016-10-11 08:28:47 - Re: qtVlm thread
Thanks for your feed back

I couldn't reproduce the pb with VMC. If I change the target POI the VMC is updated accordingly here.

Concerning the "past poi" issue, in VLM mode I know a WP has been reached because VLM server has this information. But here how am I supposed to decide if a POI was reached while the computer was off? Just because it is somehow "behind" is not enough. If you have a solution please tell me. Note that in the options you can check "automatically remove from route POIs before current WP", in that case the only thing you have to do is to set the current active WP to another POI in the route and all "past" WP will be automatically removed. This option is available in the main parameters windows to make it persistent, or at the route level.

Concerning the management of POIs and route etc, that is on the todo-list... one day for sure it will reach the top of the list ;)

Philippe
Posted by
JB


Users avatar

Posts
305
Registered at
2013-03-07 08:54:34
2016-10-11 10:58:33 - Re: qtVlm thread
Viva Robbie.

Nope, I'm not sailing the Sol boat.

I've only used a particular boat just for the last qT version tests purpose.
And just that.

A Big Hug!
Sail Fair.
Posted by
JB


Users avatar

Posts
305
Registered at
2013-03-07 08:54:34
2016-10-11 12:23:11 - Re: qtVlm thread
Viva Philippe,

Good afternoon.

VMC problema.

The VMC problema really exists and, again confirmed by me.
The reason you didn’t replicated the issue is probably because you didn’t use test waypoints like the ones I’m describing now.
Try to put a waypoint before the IDL and another one after (from East to West direction).
If you calculate VMC for the first waypoint it goes normaly.
Now, try to calculate VMC for the second waypoint (the one to West of the IDL).
You get the problema.

Waypoints in the “past”, suggestion for a solution.

If the boat GPS is connected she is moving, ok.
If she is moving at a reasonable speed it is obvious that the first waypoints will be “in the past” when the routing stops.
Each calculated waypoint has geo coordinates and time stamp. The same for the boat when the routing stops.
If the boat’s time stamp is higher than the calculated waypoints, those should be eliminated, being he first to be used in the process the one who has a big time stamp than the boat.

Thank you Philippe.
Sail Fair.
Posted by
maitai


Users avatar

Posts
114
Registered at
2016-02-25 08:15:33
2016-10-11 20:00:05 - Re: qtVlm thread
New beta available (tomorrow is probably the release day)

http://www.virtual-winds.org/forum/index.php?/topic/7575-qtvlm/&do=findComment&comment=269865

That fixes your VMC issue (btw potentially a much more serious problem than just VMC instrument, thanks for reporting that).

As for the "past POIs" theory, your idea is not a correct solution: first of all you have to understand that eta to a poi is recalculated every time your boat moves, something is changed in the route, the grib changes, your polar changes, etc. There is nothing like a "fixed eta" concept. Let's imagine I find a way to add such a strange concept. Even if you POI "fixed eta" is in the past does not prove anything: what if you spent 5 days away from this pc and just switch it on? Grib has changed, you might have change the route itself because you are on way back, etc. I can imagine many cases where it will be wrong to delete "past" POIs from a route.

Better set a new POI as target, and all past POIs will be removed by the route at once, if the correct setting is activated.

Cheers and thanks again for your input,
Philippe
Posted by
kroppyer


Users avatar

Posts
347
Registered at
2010-02-05 15:25:55
2016-10-12 09:09:04 - Re: qtVlm thread
Is it possible to have QtVLM automatically choose a new POI as target? You could just pick the POI of the route closest to the boat, but better is probably to skip the closest and pick the next one (or the one after). Just make a small selection of candidates (the closest one, and a couple POIs further down), try them all, then choose the one that yields the earliest ETA. Instead of recalculating the complete route, calculating the ETA for the POI within the selection that is furthest down the route should be sufficient to pick the best target.

When you deviate more than just a little from the route, this might not work properly, but in that case you'd have to re-route anyway.

Page: First Previous 3 4 5 6 7 8 9 Next Last

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Regata dell’Accademia Navale 2025

Welcome to Sailonline’s first partnership with the City of Livorno, in cooperation with the local yacht clubs and the Italian Navy, to offer you the online opportunity to race the Regata dell’Accademia Navale. 630nm in length, starting and finishing in Livorno, the race takes you the length and breadth of the Tyrrhenian Sea via Porto Cervo and Capri. Online, you will be sailing a Class 40, which should keep you well in with the top of the real-life fleet which we will be tracking on screen!
Race #1902
INFO by brainaid.de
Class 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 26th 10:00 Registration Open!

▶ Flash
GO TO RACE

Gulf of St Lawrence 2025


The Gulf of St. Lawrence, with one of the largest and deepest estuaries in the world, will be the site of a completely new race in SOL. Our Melges 40 will take us 950 nm from Bathurst in Baie des Chaleurs around the islands of Anticosti, Pelee and Prince Edward admiring beautiful landscapes along the way. Fair winds.
Race #1910
INFO from brainaid.de
Melges 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
ARQ2 - ARCH - SUPSOL – SYC
Race starts: Apr 21st 17:00 Registration Open!
▶ Flash
GO TO RACE

Transat à Deux 2025

Above you see a single-handed sailor semi-foiling his Beneteau Figaro III to the horizon. It is in fact Ireland’s Sailor of the Year and the overall winner of last year’s Solitaire du Figaro, Tom Dolan. Somehow, we got our hands on a polar for the Class, and rather than trying to surreptitiously track Tom and his mates in the 2025 edition of the Solitaire, sailing rather-short, single-handed legs across the Celtic Sea and Biscay, we thought we’d see how our virtual craft would fare on the Class’s double-handed 3900nm Trans-Atlantic, from somewhere in Brittanny to somewhere in the Caribbean via somewhere in the Canaries. Allez, mes braves!
Race #1901
INFOby brainaid.de
Figaro III foil PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 20th 11:00 Registration Open!
▶ Flash
GO TO RACE

Gladstone Ports Corporation Brisbane to Gladstone Yacht Race 2025


Sailonline is thrilled to partner with the Queensland Cruising Yacht Club for the 2025 Gladstone Ports Corporation Brisbane to Gladstone Yacht Race. This 308 nautical mile offshore classic takes our fleet from Brisbane to Gladstone along Australia's stunning east coast. Racing in high-performance Cookson 50s, SOLers will face shifting winds and tactical decisions at every turn. It’s time to test your skills in one of Australia’s most iconic yacht races. See you on the start line!
Race #1904
INFO by brainaid.de
Cookson 50 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 18th 01:00 Registration Open!
▶ Flash
GO TO RACE

Bahamas and Back TIMED Race 2025

Welcome to sunny South Florida for this race that has us crossing the Gulf Stream twice. We depart from Palm Beach for a short run over to Freeport, Bahamas then it’s on to Miami before heading to the finish line back in Palm Beach. This is a TIMED race, so you may RE-REGISTER HERE to try again, after finishing a run. You will have 13 days and 11 hours to test your skill and decision making after the race opens.
Race #1911
INFO by brainaid.de
Santa Cruz 70 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SUPSOL - SYC
RACE CLOSE: Saturday,
26 April at 23:00 UTC
Race starts: Apr 13th 12:00 Registration Open!
▶ Flash
GO TO RACE

Sinbad by Balloon 2025 - Toamasina to Baia de l'Oiseau


You may recall that when last we visited Madagascar in the company of Sinbad, the Sultan commanded our intrepid inspirator to seek out fabled islands where in Summer the sun barely set. We did and we returned but the Sultan wasn’t happy with Sinbad’s report, so here we go again, now by SOL Balloon instead of sailing vessel. Expect to be in the air for at least 2100nm and depending on how the wind brings us, anything between two weeks and two months before we shall descend at the Sultan’s given coordinates!
Race #1884
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - SBB
Race starts: Apr 09th 11:00 Registration Closed
▶ Flash
GO TO RACE

Valparaiso to San Francisco 2025

Get ready for an exhilarating new challenge as we set sail on the fourth leg of the 2025 Ocean Championship Series! Following in the 19th century footsteps of Isabel Allende's heroine, Eliza Sommers, 'Daughter of Fortune', this all-new route takes us across the vast eastern Pacific, from Valparaíso, Chile, to San Francisco, California - a 3500nm journey of endurance, strategy, and pure sailing adrenaline. This leg will be raced aboard the powerful Rapido 60, pushing sailors to their limits as they navigate the open ocean. Do you have what it takes to conquer the Pacific? Join us and put your skills to the ultimate test!
PRIZE: SMPF
Race #1900
INFO by brainaid.de
Rapido 60 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - OCCH - SUPSOL - SYC
Race starts: Apr 07th 11:00 Registration Closed
▶ Flash
GO TO RACE

Melbourne Osaka Cup Double-Handed Yacht Race 2025

Welcome once again to what these days is Sailonline’s almost annual virtual Melbourne to Osaka Yacht Race. In real life, this double-handed 5500 nm race between these two sister cities, one deep in the southern hemisphere, the other high in the northern hemisphere, is run every four to five years, and this year is such a year. So, this year’s online version is in sync with the Melbourne Osaka Cup 2025 organised by the Ocean Racing Club of Victoria (ORCV), and the Sandringham (SYC) and Osaka Hokko (OHYC) yacht clubs. We’ll be racing the well-known First 40, a popular size of boat which should be a good match for many of the boats entered in the real race. With the doldrums unavoidably lying across our course, you can expect to be at virtual sea for at least a month!
Race #1669
INFO by brainaid.de
First 40 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
RACE CLOSE: Wednesday,
April 23 at 2300 UTC.
Race starts: Mar 16th 06:00 Registration Closed

▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member WRmirekd
  2. Sailonline Yacht Club Member Patrick70119
  3. Sailonline Yacht Club Member KaSToR
  4. Sailonline Yacht Club Member CriticalHippo
  5. Sailonline Yacht Club Member vida
  6. Sailonline Yacht Club Member FreyjaUSA
  7. Sailonline Yacht Club Member rafa
  8. Sailonline Yacht Club Member bonknhoot
  9. Sailonline Yacht Club Member Kipper1258
  10. Sailonline Yacht Club Member rumskib

View full list

Series

Mobile Client

SYC members have the benefit of access to our mobile/lightweight web client!

The mobile client