Rockbox Development > Feature Ideas

Unit Conversion Plugin

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Lope:
Firstly thanks to all the RockBox contributors. You ROCK!
(more rambling at the bottom)

Unit conversion is something I always seem to need when out and about.
All the popular units with the most common ones at the top (or chronological order within a family)

MPG <> l/100km <> km/l
litres <> gallons <> ounces <> ml <> cubic feet <> cubic meters
fahrenheit <> centigrade
yards <> feet <> inches <> meters <> centimeters <> mm <> km <> miles <> light years
(flow rate) gpm <> lpm <> gph <> lph
mph <> km/h <> m/s <> mach <> light speed
acre <> hectare <> m^2 <> km^2 <> miles^2 <> inch^2 <> cm^2 <> mm^2 <> ft^2
(pressure) bar <> psi <> Pa <> kPa <> lbft
(energy usage) watt-second <> kWh
(force): pound force <> newtons <> kilogram force <> gram force
LED illumination: mcd * angle <> lumens
picowatt <> nanowatt <> watts <> kilowatts <> megawatts <> gigawatts <> horsepower <> BTU/second <> BTU/hour


basic math should be allowed on the final result.
Eg: Energy 250W convert to kWh * 24 = kWh per day.

==========
I've been keen for years to get a decent mp3 player with rockbox.
Finally the sansa Clip+ has arrived :)
If the sansa Fuze had controls that could be operated without looking I would have gotten that.
I absolutely love the clip and how powerful you guys have made this thing with RockBox!
Favourite features of the Sansa Clip+: Sound quality, Decent size internal memory, microSD slot, Affordable, folder browsing, standard mini-usb plug, Weighs nothing, tiny, can operate without looking at screen.
When I've got some time I'll also play around with making plugins and themes.
Thanks!

Chronon:
I am sure if someone made such a plugin that it would be accepted.

redblade8:
I was looking just the other day to see if rockbox had such an application on it. I was hoping to convert cm to inches" . Making a goban when you only have cm dimensions & the teacher is insistent on everything being in inches is not good, lol.

froggyman:
You could use the calculator in rockbox to help you with your conversions. Assuming you know your conversion factors.

oayz:
This may make plugin simple and expandable (if you agree)

Make conversion definition in the separate text file, something like this:
//group,from,to,coefficient
length,mm,inch,25.4
length,inch,ft,12

Interface:

Group_pulldown_list

From_pulldown_list      To_pulldown_list
Numerical_edit_field    Result

0123456789.<-C


Up/Dn moves between pull_down lists and numerical_entry field. Left/Right/wheel selects item in the list. Data entry (in numerical_entry field) is done by simplified virtual keyboard ("<-" is delete, "C" is clear field). Result is updated immediately (no need for "enter")

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