mifr/subsurface
1
0
Fork 0
mirror of https://github.com/subsurface/subsurface.git synced 2025-02-19 22:16:15 +00:00
Code Issues Projects Releases Packages Wiki Activity

Convert the atmospheric pressure in the Information Tab to an editable field

Browse source 
The Information tab shows the atmospheric pressure. Make this value editable
and also ensure that changes to it are undo-able.

Signed-off-by: willemferguson <willemferguson@zoology.up.ac.za>
This commit is contained in:
willemferguson 2019-04-30 12:42:33 +02:00 • committed by Dirk Hohndel
parent ca6aa38139
commit 1bdf00b2b4
19 changed files with 323 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

11
core/units.h
View file

@ -254,6 +254,17 @@ static inline int mbar_to_PSI(int mbar)
return to_PSI(p);
}
static inline int32_t altitude_to_pressure(int32_t altitude) // altitude in mm above sea level
{ // returns atmospheric pressure in mbar
return (int32_t) (1013.0 * exp(- altitude / 7800000.0));
}
static inline int32_t pressure_to_altitude(int32_t pressure) // pressure in mbar
{ // returns altitude in mm above sea level
return (int32_t) (log(1013.0 / pressure) * 7800000);
}
/*
* We keep our internal data in well-specified units, but
* the input and output may come in some random format. This