SUBSIM Radio Room Forums - View Single Post - New Astronavigation Mod (ANM)

silent marshal · 04-05-12, 08:08 AM

@ Vanilla: you're exactly right: SH5 doesn't reflect realistic sun behaviour. The process I use is totally independent from SH5 and that's why it works absolut correctly. There must only be a script which prevents the use of the sextant-UI at heavy weather when the sun can't be seen (or at night of course) - but this for realistic gameplay only.

The crucial point of the process ist this:
If you know your exact position, you can calculate the hight of the sun. I do this as the first step (using SH5's exact position data which the player doesn't know) and now you can calibrate your sextant's scala this way that the (dummy) sun touches the horizont with the exact angle - and this for every second of a year.

See the result below: delta [Pos] ist the distance from the exact position of SH5.

I make some tests and the results are awsome. Depending on the accuracy of your input data your graphically located position is in a radius of a few hundret meters (well only if I use the exact calculation values; for real life conditions the accuracy will be 1km up and more - like it is in real world navigation).

I forgot to upload the nautical yearbook which will be written by a routine for a 1-hour period depending on your data input on the sextant-UI.

Here only the period from Minute 00-30 is shown. There will be a second page with the second half of the hour. Still in progress.

It works pretty well, belief me!

04-05-12, 08:08 AM	#4
silent marshal Watch Join Date: Aug 2008 Location: Vienna - Austria Posts: 25 Downloads: 89 Uploads: 0	@ Vanilla: you're exactly right: SH5 doesn't reflect realistic sun behaviour. The process I use is totally independent from SH5 and that's why it works absolut correctly. There must only be a script which prevents the use of the sextant-UI at heavy weather when the sun can't be seen (or at night of course) - but this for realistic gameplay only. The crucial point of the process ist this: If you know your exact position, you can calculate the hight of the sun. I do this as the first step (using SH5's exact position data which the player doesn't know) and now you can calibrate your sextant's scala this way that the (dummy) sun touches the horizont with the exact angle - and this for every second of a year. See the result below: delta [Pos] ist the distance from the exact position of SH5. I make some tests and the results are awsome. Depending on the accuracy of your input data your graphically located position is in a radius of a few hundret meters (well only if I use the exact calculation values; for real life conditions the accuracy will be 1km up and more - like it is in real world navigation). I forgot to upload the nautical yearbook which will be written by a routine for a 1-hour period depending on your data input on the sextant-UI. Here only the period from Minute 00-30 is shown. There will be a second page with the second half of the hour. Still in progress. It works pretty well, belief me!