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View Full Version : A new calculator of aob and speed


galaxy8691
06-23-2009, 07:56 AM
just made a calculator for aob and speed.
the aob calculator would be useful for u-boat, not sure is that useful with us-sub
speed cal support both sub
http://files.filefront.com/SubCalzip/;13923631;/fileinfo.html
happy hunting

galaxy8691
06-23-2009, 07:58 AM
any bug or improvement u want, plz post here!!:DL:DL

joegrundman
06-23-2009, 08:01 AM
Galaxy, ever interested in this sort of thing, i just d/l'ed that.

How does it get installed? how is it then used? Could we have some pix please?

i am surprised to see that it's two dll files and an unknown app. I have to say i'm a bit loathe to click on it without more info.

Edit: i just noticed your join date! It's your first two posts! Good to take time to make sure your first post is a good one :)

galaxy8691
06-23-2009, 08:14 AM
sorry about the confuse
the application does not need to install, juz clicked the .exe file, then it will run.
The two .dll files are come from qt package. Qt is an interface api, i use it instead of windows api, coz I am not a windows programmer, beside I am a linux programmer, therefore, i have to use this api for cross-platform support.
I will upload some pic if require.

file://C:%5CDocuments%20and%20Settings%5CAdministrator%5C My%20Documents%5CMy%20Pictures%5Ccal1.jpg
http://www.subsim.com/radioroom/C:%5CDocuments%20and%20Settings%5CAdministrator%5C My%20Documents%5CMy%20Pictures%5Ccal1.jpg

galaxy8691
06-23-2009, 08:17 AM
how can i post pics??

joegrundman
06-23-2009, 08:17 AM
yes please on the pix! When you say it doesn't install, does this mean it's a stand alone program?

joegrundman
06-23-2009, 08:18 AM
Host the pix using imageshack and use the link to image feature. Just paste the url into a post

galaxy8691
06-23-2009, 08:25 AM
joegrundman (http://www.subsim.com/radioroom/member.php?u=232002) thx for ur help, however, i have post a screenshot in the downlink, yup, it is a stand alone calculator, not sure if u will find it useful, for myself it is useful enough!!:DL:DL

joegrundman
06-23-2009, 08:45 AM
OK Galaxy,

i gave it a whirl.

Personally i use another tool for aob-target course conversion, specifically the submarine attack course finder and the kriegsmarine equivalent

http://www.subsim.com/radioroom/showthread.php?t=106923&highlight=iswas

But, I have a couple of suggestions for improving the versatility of your tool.

It's not the case that everyone wants to only convert from target course to AOB. For many of us, it is more important to be able to convert from AOB to target course, so if possible could you make it so that it could solve either problem?

The same could be true of speed too.

E.g for given speed, how far in, say 9 hours 30 mins.

This could help plan long range intercepts

Other than that, id just like to say, great way to make your presence known galaxy:up: Welcome

edit:

one last thing, you abbreviate Starboard as STRN, which is not a well-known abbreviation.

May i recommend Stbd?

joegrundman
06-23-2009, 08:51 AM
Oh i have another question: do you run SH4 satisfactorily with Linux then? Please let me know details if so!

galaxy8691
06-23-2009, 08:56 AM
Thx for advice, the aob to course problem can be done easily,
but the intercept problem will be time consuming. yup I will try.
Sorry about my english, I will make it to stbd!!:D:D

joegrundman
06-23-2009, 10:32 AM
no probs! I think these improvements will make the tool more useful:up:

Rockin Robbins
06-23-2009, 12:35 PM
Ditto what Joe says. If you're running SH4 with Linux, you need to start a new thread right now and get into the details. I've tried and some people I consider experts have tried without any luck. Every time I don't have to boot Windows and can boot up my Ubuntu installation is a victory for me.

I know that every program I have that works both in Windows XP and Ubuntu (Firefox, Thunderbird, Inkscape, etc) runs approximately twice as fast in Ubuntu. I'd love to see that happen in SH4. You'd be a hero in my book!:rock:

http://i196.photobucket.com/albums/aa293/RockinRobbins13/Screenshot-1.png

See? I have successfully installed the program under WINE but can't get it to run.

galaxy8691
06-23-2009, 07:23 PM
true:D:D:D the only reason i still got windows is i can play games on it. If all games are portable to linux, i will definitely ignore windows

galaxy8691
06-23-2009, 07:31 PM
to joe, I have an idea how to convert aob to course, the solution is even simpler than course to aob. However, for ideal intercept problem, I have a complex mathematical solution, but I am lookin for a better one, btw can you provide more detail of this problem. What I can think of is (not sure if it is what you want),
you have target's aob, bearing relied on aob, speed and the distance bettwen you and the target, then you input a desired aob, whereas the application will calculate a spped and heading the satisfied your requirement. Am i right??

joegrundman
06-23-2009, 10:13 PM
So you still play SH4 on windows..pity! I too would drop windows in a flash if i could run games on Linux.

Regarding the program, i'm not suggesting major changes to the speed calculator.

Since speed = distance/time

at present you have to enter distance and time and can only solve speed

i just think it would be useful if the program would calculate the solution whichever two pieces of information you enter. Ie. enter speed and time, get distance. enter speed and distance, get time.

trying to calculate actual intercepts requires knowledge of your and the target's course and i think would be an increased level of complexity.

there is already a tool, mobo, which you can find at the bottom of the SUBSIM main page, which solves complicated problems. Your tool if it has a niche is likely to be as a quick and easy calcultor for simple common problems.

Even better if you can have it appear on screen without having to ALT tab out of SH4 on a key command

joe

XLjedi
06-24-2009, 06:08 AM
I have a tendency to pop-up whenever mobo is mentioned...

Nice of you to share your work! :up:

If you have MS Excel, you're welcome to review my example of how the Constant Bearing formula works. The example also provides the cell-based formulas and inputs you would need to incorporate into your app for an intercept solution. :ping:

You can get to it here:
http://www.subsim.com/radioroom/showthread.php?t=121696

Urge
06-24-2009, 11:13 AM
joegrundman wrote...

The same could be true of speed too.
E.g for given speed, how far in, say 9 hours 30 mins.
This could help plan long range intercepts...
Since speed = distance/time

at present you have to enter distance and time and can only solve speed
i just think it would be useful if the program would calculate the solution whichever two pieces of information you enter. Ie. enter speed and time, get distance. enter speed and distance, get time.


Here is a link to a post by 6SJ7GT about a tool that will help solve time/speed/distance problems. I downloaded and made this last year. The link to the version I made is dead but I see on the celestial navigation thread

http://www.subsim.com/radioroom/showthread.php?t=135215

that he is reuploading his files so I'll bet if you asked he would upload the version of the TSD circular computer that has the yards on it.

http://www.subsim.com/radioroom/showthread.php?t=134994

Urge