sigmatools

Convert sigma rox 10.0 data to useable standard formats. slf2gpx

motivation

I bought myself a sigma rox 10.0 gps bike training computer. While it is a neat little device, the software and especially the export to strava sucks ass. Their "data center 3" (besides that its adobe air crap), just fails to export correct data. For example all pauses are missing, Timezones are wrong. etcpp

But in the sigma own format "slf", all data seems to be present, even if sometimes in a very crude own way of doing things :)

So i digged into the fileformat and came up with a working solution for me:

slf2gpx

slf2gpx.js converts a sigma "slf" file to standard gpx with gpxtpx:TrackPointExtension extensions.

It can process the additional pause markers correctly, so the resulting gpx has correct timestamps for every track point!

features

• Uses the correct Start Time and not the file creation date (oh boy sigma)
• Calculates the correct timestamps for each gpx track point based
• Inserts pauses so that the total ride time is correct and the gps point's timestamp at which the pause occured is shifted correctly
• Supports an exports HeartRate, Cadence, Elevation and Temperature Data

installation

You need a working nodejs installation. Probably do a pacman -S nodejs or whatever your distibution would like you to do...

Just clone the git repo and do a npm install:

git clone https://github.com/bonkzwonil/sigmatools.git
cd sigmatools
npm install
node slf2gpx.js input.slf output.gpx

usage:

In Basic usage it should suit your needs.

However you can also force it to not do some processing:

Help: 
 -h or --help: this help
 -p or --nopauses: do not process pause markers. This will lead to wrong daytimes in trkpts
 -k or --keepnongps: do not filter out points without gps coords.
 -d or --debug: debug on
 -s or --silent: rig for silent running

Im working on more tools to get rid of even using that "data center" software, so stay tuned while im analyzing the usb dumps :)