exposurses

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Overview
Comment:Implement functionality to calc req'd and then sel nearest match in menu

So far only implemented on Shutter menu, i.e. have to select ISO and
Aperture, it will then use the equations to calculate the exact required
shutter speed, but then select the nearest value in the menu.

In order to do that added these two functions:

- nearest_match
- fraction_to_double

The latter needed, because need to convert "1/1000", etc into float. For
Aperture menu items can just strip off the "f/".

Seems to work for Sunny 16.

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SHA3-256: 6513b427e7cb2d6191054029b8a73724a11be100601d6317c34b2a9d480a3ce3
User & Date: base@atomicules.co.uk 2013-08-29 23:24:17
Context
2013-08-31
07:47
Remove extraneous line that came from menu_scroll.c check-in: ed161d4179 user: base@atomicules.co.uk tags: origin/master, trunk
2013-08-29
23:24
Implement functionality to calc req'd and then sel nearest match in menu

So far only implemented on Shutter menu, i.e. have to select ISO and
Aperture, it will then use the equations to calculate the exact required
shutter speed, but then select the nearest value in the menu.

In order to do that added these two functions:

- nearest_match
- fraction_to_double

The latter needed, because need to convert "1/1000", etc into float. For
Aperture menu items can just strip off the "f/".

Seems to work for Sunny 16. check-in: 6513b427e7 user: base@atomicules.co.uk tags: origin/master, trunk

2013-08-27
12:00
Fix order of arguements in exposure functions check-in: c663824d67 user: base@atomicules.co.uk tags: origin/master, trunk
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Changes to exposurses.c.