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 11 12 13 14 15 16 17 Next Last

Posted by
SCARABOCCHIO


Users avatar

Posts
97
Registered at
2012-02-05 16:24:16
2017-04-05 11:00:01 - Re: qtVlm thread
I finally understand: "best performance" and "best accuracy" refer to calculation accuracy of the route, not to speed performance of the boat ...
Carlo Alberto
Posted by
Zoe


Users avatar

Posts
15
Registered at
2016-07-05 21:43:16
2017-04-05 14:55:34 - Re: qtVlm thread
Sorry, I still don't understand the difference between "performance" and "accuracy".
Thanks for any assistance.
Zoe
Posted by
SCARABOCCHIO


Users avatar

Posts
97
Registered at
2012-02-05 16:24:16
2017-04-05 18:39:25 - Re: qtVlm thread
Hi Zoe,
I realized that with "best performance" the software calculates the route in a faster way, but less precise, with "best accuracy" calculates your route more slowly but the result is more accurate.
Carlo Alberto
Posted by
Zoe


Users avatar

Posts
15
Registered at
2016-07-05 21:43:16
2017-04-05 19:02:39 - Re: qtVlm thread
Hi Scarabocchio,

Yes, I get that, but the difference in calculation time between the two is measured in seconds!. In my computer, using "Best accuracy" usually means extra seconds, (less than 1 minute), or so of "waiting", even on long legs routings.

To me, I don't see the reason in using "Best performance" ever.

Thanks,
Zoe.
Posted by
SCARABOCCHIO


Users avatar

Posts
97
Registered at
2012-02-05 16:24:16
2017-04-05 19:08:38 - Re: qtVlm thread
on my Mac, best performance calculated in seconds and optimizes in a minute, calculates best accuracy in a few minutes and optimizes it for a long time (depends on how many hours do you calculate the forecast).
C.A.
Posted by
SCARABOCCHIO


Users avatar

Posts
97
Registered at
2012-02-05 16:24:16
2017-04-05 19:17:38 - Re: qtVlm thread
(I use "best accuracy" only when I want to sleep well ...)
Posted by
Zoe


Users avatar

Posts
15
Registered at
2016-07-05 21:43:16
2017-04-05 19:18:52 - Re: qtVlm thread
Really?

I must have a fast computer them. I haven't seen any (routing) calculation that takes more than a minute.
I am running on a Dell Inspiron Laptop with Intel i7 at 2.30GHz and 16 GB of RAM. Windows 10. (One year old.)
Posted by
Zoe


Users avatar

Posts
15
Registered at
2016-07-05 21:43:16
2017-04-05 19:30:56 - Re: qtVlm thread
Scarabocchio,

Yes, sleep at night is important.
To me that is the appeal of using Qt, so I can sleep 8 hours at night. I always skip one weather update, usually the one at 2 AM, and that is fine with me. :)

Zoe
Posted by
SCARABOCCHIO


Users avatar

Posts
97
Registered at
2012-02-05 16:24:16
2017-04-05 19:33:39 - Re: qtVlm thread
Mine is a MacBookPro Retina 15" - 2,2 GHz Intel Core i7 - 16 GB RAM.
The computation time I said is related to the "automatic settings", if you change parameters the time is greatly reduced.
C.A.
Posted by
maitai


Users avatar

Posts
114
Registered at
2016-02-25 08:15:33
2017-04-07 06:42:17 - Re: qtVlm thread
Hello,
Best Accuracy uses more resources (memory and CPU) and takes more time. On a decent PC that should not be a problem and that should be your preferred setting.
But remember that qtVlm also runs on Android and iOS, so when running on a small phone it might be needed to reduce accuracy in order to save time (and battery). Some trials are needed in order to find the correct setting depending on your device and needs.

--- Dernière modification par maitai le 2017-04-07 06:42:50 ---

Page: First Previous 11 12 13 14 15 16 17 Next Last

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Lake Victoria TIMED Race 2026

This month’s TIMED race takes us inland to Lake Victoria in the heart of Africa. Starting at Rosebery Channel in Uganda sail the AC72v2 on a 196nm course around Bugala Island on the way to the finish line in Tanzania’s Speke Gulf. This is a TIMEDrace so you may RE-REGISTER HEREto 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 #2018
INFOby brainaid.de
AC72v2 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ1 - TRCH - SYC
RACE CLOSE: Saturday,
28 March at 23:00 UTC
Race starts: Mar 15th 12:00 Registration Open!
▶ Flash
GO TO RACE

SSANZ Round North Island Race 2026 - Leg 4

The final challenge awaits in Leg Four of the Round North Island Series! From Napier, the fleet sets off on a 354 nautical mile run back to Auckland, completing the full circumnavigation where the journey began. Fatigue may be setting in, but this last leg could decide the overall standings. Sailing the fast and responsive Sun Fast 3600, our skippers will need sharp tactics and steady focus to finish the series strong and claim victory!

The start time for this race may change at short notice to align with the real race. The confirmed start date and time will be announced via an in-race “L” flag message — Please monitor race communications closely.
Race #2014
INFO by brainaid.de
Sun Fast 3600 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RNI - SUPBUD - SYC
Race starts: Mar 12th 22:00 Registration Open!
▶ Flash
GO TO RACE

SSANZ Round North Island Race 2026 - Leg 3

Leg Three of our Round North Island Series, in partnership with SSANZ, keeps the pressure on! From Cook Strait, the fleet turns north for a 187 nautical mile passage up the east coast to Napier. It may look like a quick overnighter, but shifting coastal winds and the ever-lively Cook Strait demand sharp focus. In our responsive Sun Fast 3600s, a proven short-handed racer and powerful downwind performer, tactical decisions and precise timing will make all the difference!

The start time for this race may change at short notice to align with the real race. The confirmed start date and time will be announced via an in-race “L” flag message — Please monitor race communications closely.
Race #2013
INFO by brainaid.de
Sun Fast 3600 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RNI - SUPBUD - SYC
Race starts: Mar 08th 22:00 Registration Closed
▶ Flash
GO TO RACE

Iceland to the Falklands 2026

Welcome to an all-new route, the first of three Round the 'Old World' of Europe, Africa, Australia and Asia. To give each leg of the ROW a bit of length we'll try to hug the coasts as little as possible, so starting in Iceland our first leg of the series, which will also be the final leg of our Quarter 1 Ocean Championships takes us 7200nm to the Falklands, the full length of the Atlantic end to end. To make sure we'll get it done within the month we'll be sailing our Maxi Trimaran.
Race #2010
INFO by brainaid.de
Maxi Trimaran PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ1 - ROW - OCCH - SYC
RACE CLOSE: Tuesday,
March 24 at 2300 UTC.
Race starts: Mar 02nd 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member KaSToR
  2. Sailonline Yacht Club Member WRmirekd
  3. Sailonline Yacht Club Member rafa
  4. Sailonline Yacht Club Member rumskib
  5. Sailonline Yacht Club Member Sax747
  6. Sailonline Yacht Club Member CriticalHippo
  7. Sailonline Yacht Club Member vida
  8. Sailonline Yacht Club Member CollegeFund
  9. Sailonline Yacht Club Member Panpyc
  10. Sailonline Yacht Club Member sassy63

View full list

Series

Mobile Client

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

The mobile client