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Board » Sailonline Race Committee » Rules and Decisions » Legality of the use of extra zoom on the apparent size of end points of finish line

When the end point of the finish line is examined on extra zoom, is it legal to set course very close to the point and still legally finish, even when, on standard zoom, the course would cross over the edge of the round dot?
If it breaks, it's not strong enough--if it doesn't, it's too heavy.
All marks and finish line endpoints are singular coordinates on server side. That is, the server thinks their diameter is zero.

However, I don't believe those "closest" pixels are really necessary in practice anyway as we talk very very small distances per pixel. I'd recommend leaving at least 0.002 degree margin in angle to be on the safe side (it's easy to check that the COG number in the infobox changes when aiming).

The finish line endpoints are not provided by the server currently but they are calculated by the client(s), which is a potential (small) error source on their position. There was an unfortunate incident not so long ago related to it because html5 client finish line code pre-dated my access to server-side formulas. I'd like to change this among many other things eventually such that the finish line coordinates are provided by the server so such errors would no longer be possible.

Occasionally pixel rounding related "jitter" may result in different positioning for the very same line so "crossing" is not even well-defined if only considered what is seen visually for a line.

--
i.

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Tuvalu Sprint 2022


We will start our sprint competition this year with a new 35.4 nm race around the Te Namo Lagoon islands of Tuvalu in the central Pacific. We will sail our Fareast 28 boats between the tiny islands of this archipelago. Prepare your boats and crews, and watch out for sandbars and bommies.
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Sail Newport Timed Race 2022


Welcome to Rhode Island in our first TIMEDrace this year. In 2020 we raced on Maxi Trimarans, now we will see how fast we can cover the 87nm route around Block Island, Fishers Island and back to the clubhouse on MC 38 monohulls. The previous record of 4 hours 5 minutes and 21 seconds belongs to Kipper1258. Try to judge your weather window well, but once you've finished (you must have finished), you can always try again (as often as you like) by clicking the link below.
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Race #1549
INFO by brainaid.de
MC 38 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
RANKING: TRQ1-TRCH-SUPSOL-SYC
REGISTRATION CLOSE: Sunday, 23 January at 2200utc
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Race starts: Jan 10th 12:00 Registration Open!
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Yellow Sea Race 2022
There are six seas along the eastern seaboard of mainland Asia. Six seas less travelled by the racing sailor. So, here we go. Six races up and down the Asian coast, plus one in the nearest sea to the Asian mainland of the Indonesian Archipelago, to make it a mythical seven; five to count. And in no particular order, we start with a 2200nm or so race criss-cross through the Yellow Sea in ever-elegant Italia 14.98's.
Race #1538
INFOby brainaid.de
Italia 14.98 PARTICULARS
WX Updates:
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Ranking: SYC - SSA
RACE CLOSE: Friday,
January 21 at 2300 UTC.
Race starts: Jan 04th 04:00 Registration Closed

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Cape Town to Rio 2022

Welcome to South Africa and RCYC's classic transatlantic Cape2Rio Race from Cape Town, South Africa, to Rio de Janeiro, Brazil. First run in 1971, the next race in reality will be in January 2023, but in the meantime you can test yourself on-course in this, our second virtually-only Cape2Rio Race, which we will once again be sailing in Mark Mills' 74ft speedster, the stunning C2R74.
PRIZE: SMPF
Race #1537
INFO by brainaid.de
C2R74 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
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RACE CLOSE: Tuesday,
January 25 at 2300 UTC.
Race starts: Jan 02nd 14:00 Registration Closed

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