Michael Keller 1e47f597fa Added parsing of the CCR setpoint information for Garmin Descent computers.
This is adding support for parsing the setpoint information in logfiles downloaded from Garmin Descent devices.

The Garmin devices do not have support for ppO2 sensor input, so they only work in 'fixed setpoint' mode for CCR dives, and dive data records do not contain actual ppO2 values.
The ppO2 values are retrofitted to the dive data based on 'setpoint change' events reported by the device. With this change CCR dives downloaded from a Garmin device are correctly classified as CCR dive, and the calculated ceiling / tissue loading graphs are accurate and match the deco stops reported by the device.
Before this change, CCR dives were classified as open circuit dives, often resulting in a massively overstated calculated ceiling.

This has been tested for logs with only automated setpoint changes - more test dives are needed to reverse engineer the log file format for manual setpoint changes, as the setpoint fields are not documented in Garmin's documentation for the FIT file format.

Signed-off-by: Michael Keller <github@ike.ch>
2022-11-24 11:20:04 +13:00
2014-03-19 09:16:07 +01:00
2021-05-07 21:22:36 +02:00

Overview
========

Libdivecomputer is a cross-platform and open source library for
communication with dive computers from various manufacturers.

The official web site is:

  http://www.libdivecomputer.org/

The sourceforge project page is:

  http://sourceforge.net/projects/libdivecomputer/

Installation
============

On UNIX-like systems (including Linux, Mac OS X, MinGW), use the
autotools based build system. Run the following commands from the top
directory (containing this file) to configure, build and install the
library and utilities:

  $ ./configure
  $ make
  $ make install

If you downloaded the libdivecomputer source code directly from the git
source code repository, then you need to create the configure script as
the first step:

  $ autoreconf --install

To uninstall libdivecomputer again, run:

  $ make uninstall

Support
=======

Please send bug reports, feedback or questions to the mailing list:

  http://libdivecomputer.org/cgi-bin/mailman/listinfo/devel

or contact me directly:

  jef@libdivecomputer.org

License
=======

Libdivecomputer is free software, released under the terms of the GNU
Lesser General Public License (LGPL).

You can find a copy of the license in the file COPYING.
Description
No description provided
Readme 4.5 MiB
Languages
C 98.3%
M4 1.2%
Makefile 0.5%