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Board » General Discussion » Polar analysis spreadsheet

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Posted by
Incognito


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2008-12-06 13:43:52
2010-02-23 22:01:36 - Polar analysis spreadsheet
New version for those who are interested.

Go to the page 'VMG overview' and change only the figures in red.

Two exceptions:
-'Chosen setting' where you can input either a TWA in cell C7 or or a CC in cell C8.
- Cell V10, which defines the scale of the graph.

--- Last Edited by Incognito at 2010-02-24 20:19:56 ---
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Posted by
A2


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2010-02-23 22:56:01 - Re: Polar analysis spreadsheet
Excellent work as usual Incognito.. I think I can see how this has progressed from your earlier SS.

If you wouldn't mind giving us the benefit of your insight as to how you improved this from the last one and how to utilize its features.

thanks
None so blind
Posted by
Incognito


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2010-02-24 08:17:10 - Re: Polar analysis spreadsheet
There are 3 main changes:
- I added an input for the settings that you are using or want to use in cells 'C7' and 'C8', an the corresponding data in colum 'G2:G8'.
- I added the VMC row 'E6:T6'.
- I added a macro to adjust the graph automatically when changing cell 'V10'.

I am already thinking of the next version. I would like to give it a more dynamic character by providing key data at various wind speeds and wind angles. That requires a bit more programming however, and that is always time-consuming.
Posted by
Joshua_Pig


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2010-02-24 11:59:30 - Re: Polar analysis spreadsheet
Many thanks for this great job, Inco :)

Where can we find spreadsheets for other boats ?
Posted by
A2


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2010-02-24 16:55:08 - Re: Polar analysis spreadsheet
See Below

--- Last Edited by Aethereal at 2010-02-24 19:51:48 ---
None so blind
Posted by
Incognito


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2010-02-24 19:44:48 - Re: Polar analysis spreadsheet
Almost correct, but it will not work with the Santa Cruz spreadsheet. Reason is that the Santa Cruz polar data does not come from brainaid's site. It is an own construct based on the raw data provided in the race screen. (Interestingly, my interpolations seemed to come very close to the real thing.)

Anyway, here is how to use the spreadsheet for another boat.

1. Download the attached spreadsheet for the Seacart 30.

2. Download the polar data from Brainaid's site and copy it into the cells 'A11:d7250' on the page 'Data'.

3. Right-click on any cell in the table 'F9:AT191' on the page 'Data'.

4. Select 'Refresh Data' in the menu that just appeared. You should see some changes in the table as a result.

5. That 's it! You are ready to go.

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Posted by
kalle


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2010-02-24 20:16:52 - Re: Polar analysis spreadsheet
Also note that our raw polar data is downloadable from the "Help tab" in the client.
Posted by
Joshua_Pig


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2010-03-16 15:54:22 - Re: Polar analysis spreadsheet
Thanks for your reply but it doesn't work...

When pasting new polar data, the following error message appears : "La taille et la forme des données ne correspondent pas à la zone sélectionnée"

If I ignore that message, values obtained in spreadsheet don't correspond with reality.

Sorry for the trouble...
Posted by
Incognito


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2010-03-17 09:28:52 - Re: Polar analysis spreadsheet
FR Joshua74 said @ 2010-03-16 15:54:22:
Thanks for your reply but it doesn't work...

When pasting new polar data, the following error message appears : "La taille et la forme des données ne correspondent pas à la zone sélectionnée"
-------

Hello Josh,

Sorry for the late answer, I was a bit sick for the last few days.

So, if I understand you well, you want to use my spreadsheet with the polar data of another boat.

My first question then is: where does the new polar data come from?

Regards,

Francois
Posted by
Joshua_Pig


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2010-03-18 16:16:56 - Re: Polar analysis spreadsheet
Salut François, j'espère que tu vas mieux maintenant.

En fait ce que je recherche pour l'instant, c'est un moyen de connaître le meilleur twa pour une tws donnée... Pour cela, je n'ai que ta feuille de calcul et j'essaye de rentrer les data obtenues sur le site de Brain ou dans l'onglet "boat polar" du bateau en question et selon le mode d'emploi que tu indiques plus haut.

Mais je suis une vraie bille en info et je dois faire quelque chose de faux sous excel sans savoir quoi évidemment...

Merci d'avance !

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