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Posted by Tijn  |
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I know that you implemented the rounding algorithm before, but I have been thinking about it and want to share my thoughts on this.
Since you've implemented the rounding itself quite well, I'll take that for granted. To ensure proper rounding I would suggest the following algorithm: 1) The rounding value starts at zero. 2) Correct rounding increases the value by one 3) Reverse rounding decreases the value by one 4) Maximum value is 1 5) Mark is rounded when and only when value is 1 Especially number 4 is very important to prevent invalid roundings. I checked it with various scenarios and it seems to work for all of them. Implementation should be fairly easy I think ** Tijn **
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Posted by AGage  |
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First about 76T's quoting of the SOL manual...
Well actually it was mostly meant to be an update of the new features in SOL - published in time incase we got some new SOLers from the Tall Ships. That pic was taken from the previous version, and I didnt really take much notice of it (ie the backtrack could never be legal as it comes from the wrong side)... Secondly, the manual is NOT meant to be a rule book, but a (basic) guideline to using the SOL interface. IMHO - It has been made abundantly clear from previous forum posts, and the very fact that code was introduced to prevent such 'unrounding' that such a rounding is NOT acceptable. Sure - there is an issue at the moment with that code - but the intention still stands. It seems (i was not in the chat at the time) that it was made very clear the rounding was not legal - and merely stating 'But the client says I am ok' is, well, pathetic... Someone in the overall top 10 of SOL knows exactly how a mark should be rounded, and was clearly trying to exploit a loophole that was believed (correctly) to still be in the server code. Not going back and rounding correctly was poor sportsmanship - and I am sure this will be reflected in how the SOLer in question is regarded in the future... I help develop the client interface for the best online ocean racing sim there is... __/)/)_/)__ |
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Posted by AGage |
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Actually - easy fix for this...
Make the NOR linked to on brainaid;s site a REAL NOR... In the course listing it says 'Leave to Starboard/Port' - which is clearly impossible to do if you unwind your rounding... ?? I help develop the client interface for the best online ocean racing sim there is... __/)/)_/)__ |
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Posted by 76Trombones  |
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Yes absolutely. The manual is a manual.
In the absence of written rules, the text and the diagram were being used by others both here and in chat as evidence in what amounts to protest hearing. The arguments presented based on reading of the manual do not show that any rule was broken. It's important that procedure is followed. If the current "rules"/code/course-design produced a result that was unsatisfactory, the correct response is to ensure that *next* time it won't It has already been stated (in chat at least) that we will go back to setting additonal course-forcing marks until the new code is up and tested. The code fix is being worked on. So that leaves the rules. Really, so long as the server is working properly, the rule ends up being "what the server says goes", putting us right back here if it doesn't. If we really don't want to rely on the server, we need rules that cover everything that the server does, as we can no longer say "all rules are automatically enforced". There is a short list of possible points of contention: NOR/SI, navigable water, jumping, roundings, finishes, timing and changes to course? I'll kick things off with assistance from PaulR and ISAF:
Sorry to be a stickler, and I know that it's unpopular result. Nothing that has been argued so far holds up - if boats currently racing can present a valid case so much the better. So far I don't see any case against the involved boats, but it's also not my job to look (assuming I'm hearing the protest, and besides I have no boat in this race). |
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Posted by 76Trombones |
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If I sail around a mark twice clockwise and then once anti-clockwise what direction do I leave the mark on? We all know "what is meant by" leave to port, but PaulR has it perfectly correct - the IRL rules have evolved to eliminate all ambiguity. The casebook makes for great bedtime reading
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Posted by A2  |
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* This field is required. * --- Last Edited by A2R at 2012-02-10 07:12:59 --- None so blind |
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Posted by NZL_PaulR  |
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Thanks 76T.
If this was a Formula 1, NASCar or World Car Rally event, instead of sailing, then the F1 rules, road code for that country would apply, and be part of the car racing game. Whether one drives on the right, or on the left, I am pleased to say that down under , we drive on the topside of the road; but is that not the bottom side of your road?? Joking aside, the evolution of the IRL Racing Rules will save us a lot of time. My only suggestion 76T, is that when we number our rules, we put in brackets a reference to the ISAF RRS Rules. So your No 1 rule as above may need to be renumbered because the IRL RRS Rules 2, 3 & 4 should also apply. Is Rule 5 applicable? Should we test? Or can anyone race regardless of their abbilities. What happens if you fail? So your first rule above should include "(RRS 28)". This will save us all a lot of future problems if we stick to the ISAF numbering system as well. So rule 5 may show: 5. (RRS 5) NOT applicable to SoL. . . . etc. Cheers --- Last Edited by NZL_PaulR at 2011-07-18 04:25:26 --- If it breaks, it's not strong enough! |
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Posted by NZL_PaulR |
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8mr Who: I do agree with your tidal situation but I think this was dropped several years ago as being impractical, because of server loads, local knowledge, lack of information available (copyrights?) for all SoLers around the world.
It could however be re-visited. Alternatively the ISAF Right of Way Rules 10, 11, 12, 13. It could be interesting if a penalty of say 3% or 4% performance drop could happen if a vessel comes within a certain distance of another. E.G. if when one zooms in to say less than 1nm on the zoom scale, a red "danger circle" of "x" boat lengths or 0.25nm appears around each boat. Then if a port tack boat fails to avoid or dip a starboard boat, the port tacked boat gets a penalty, and so goes slower for a time until back to 100%. Equally zooming in and steering you port tacked boat to avoid others on starboard, would mean you can avoid such a penalty. When on starboard, you can sleep!! just as IRL!! It may need some time or distance limit before this happens after a start; say after 10% of the race has been covered which would often allow boats to spread out a bit. Cheers --- Last Edited by NZL_PaulR at 2011-07-18 04:27:17 --- If it breaks, it's not strong enough! |
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Posted by NZL_PaulR |
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Thinking a bit further, instead of circles, we could have the Red & Green sectors showing.
That way the International Collision Avoidence Regulations can apply at night and the RRS during the day. Realistic or knot?? If it breaks, it's not strong enough! |
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Posted by mustang_sally |
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I Think it is hard enough for the sailors at the moment that have to work or go to school and cant access a PC for hours in the day.
The races of late and in the near future only let you do well if you are around 24hrs a day!!! And still no race that can be started and finished in the weekend! Now you are talking about putting in port/stb rules to make it harder for them!! not the best way to recruit or keep members!! |
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Garagiste's Test Lab
Race #1939
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Patricks Test
Race #1932
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Joanne's Test Race Zone
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Marstrand to Cowes 2025
We invite you to another race, which will kick off the third quarter of our ARCH series. We'll set off from Marstrand, Sweden, which, along with Skagen, Denmark, marks the line commonly recognised as the border separating the Baltic Sea from the North Sea. The 650nm route will take our Ripitide 50 across the North Sea and the English Channel to Cowes, England. Watch out for the fast ferries crossing the Channel from Calais to Dover 😊.
Race #1935
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Nantucket Sprint 2025
Welcome to Nantucket, from whence Herman Melville’s Cap’n Ahab sailed round The Horn into the northern Pacific Ocean to hunt the gray whale - whose migrations are celebrated elsewhere in SOL’s Q4 schedule - he never to return. And whaling too, as the 19th C progressed, like Ahab disappeared from Nantucket as the harbour silted up and mainland Massachusetts whaling stations benefited from rail connections. But beach life, yachting and nostalgia has rescued the island from oblivion, so to celebrate leisure, SOL gives you the Nantucket Sprint - 25nm in 29er_XX’s from east of Tuckernuck Island across the sound to a finish just inside the mouth of the harbour. Enjoy!
Race 1936
INFO by brainaid.de
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Puil's Practice Palaver
Nearly there; only 2500nm to go, round the Horn and up the Red Sea to Suez into what will more than likely be more headwinds for this sixth leg of our African circumnavigation, to be followed in September by a final sneaky dash up the canal back to where we started all those months ago. We’ll be sailing a not entirely appropriate-for-upwind-work 60ft Trimaran!
Race #1859
INFOby brainaid.de
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Gulf of St Lawrence - test - Mirek
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Race starts: Apr 21st 17:00
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Stefan's Duck Pond
PRIZE: SMPF
Race #1900
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Trapped Camel
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Race starts: Aug 21st 15:03
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Caravanserai
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Race starts: Aug 08th 17:00
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Patrick's Playpen
Welcome to the legendary "Westcoaster," a race that has tested sailors for over 50 years. Spanning 435 nautical miles, this iconic journey takes racers from Melbourne, across the formidable Bass Strait, and around Tasmania's rugged west coast to the finish line in Hobart. Organized by the Ocean Racing Club of Victoria, the Westcoaster is renowned for its challenging conditions and adventurous spirit. This year, our SOLers will tackle the course in the swift and capable First 47.7, a yacht launched by Beneteau in 2000, built for speed and endurance in long ocean races. Get ready for an exhilarating ride in one of Australia’s most celebrated yacht races!
Race #1841
INFO by brainaid.de
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Mirek's Mess & Canteen
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Race starts: Apr 26th 18:00
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Antarctica 1 of 3
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Race starts: Jan 27th 21:57
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Flinders Island TIMED Race 2024
Race #1776
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Tasman Double 2023 - Hobart to Sydney
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Race starts: Jan 02nd 02:00
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John's Test Zone
It's time to test your ocean racing skills in a variety of weathers as we head the 6400 NM between Hong Kong and Auckland in a fast Super Maxi 100. We'll be heading from a northern summer to a southern winter so keep plenty of cold weather gear and warm rum on board!
PRIZE: SMPF
Race #1597
INFOby brainaid.de
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calm's Practice Race
Last raced in 2021, we return to Boston for another race to Newport. And just like in 2021, the chosen boat is once again the speedy R/P 66. This is a TIMED race so pick your winds wisely and see how quickly you can complete this 132nm run! For reference, the winning time in 2021 was 6:12:28.
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Race #1700
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ZONA DE PRUEBA DE MANUEL
Please note the displayed course is provisional; the actual course will be set after the IRL course is announced at the skipper's briefing 48 hours before the start, and no later than 24 hours before the start.
Race #1561
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San Sebastian to La Rochelle 2021
Once again, our SOL race will be shared with a group of Polish sailors, representing one of the stages of their Virtual Training Cruise around Europe. 171 nm in Delphia 47s across the not always calm Bay of Biscay from San Sebastian to La Rochelle will undoubtedly be one to test their skills. Welcome/Witajcie and we wish you all fair winds.
Race #1441
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Aland Sea TIMED Race
Norrtalje Segelsallskap, 70km NE of Stockholm was founded in 1920, and time was when the society’s season opened with a challenging offshore race from the club line off Flaten island at the mouth of the long and narrow Norrtaljeviken, out onto a triangular course around the Aland Sea, to finish at Simpnas slightly to the north on Bjorko island - some 78nm in total. A fine race that SOL, being from these parts, ran annually up until 2013. Last run in autumn 2018, we return here to race the course again in the form a TIMED RUN in spanking new Club Swan 50s.
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Race #1444
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Bimmer's Test Zone
What about a speedy X-362 380nm race in the waters off S America, just to blow cobwebs away!!
Race #1415
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Antarctica 3 of 3
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Race starts: Sep 16th 11:13
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BLANK POLAR
Race starts: Feb 16th 00:00
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