GPS - collecting track while filling in questions

[Emma_Joseph_Oudin]

Dear community,

Is there a way to

• start collecting a track (using a geoshape or geotrace type question, wit setting on automatic recording)
• be able to follow up with the questions in the form?

Our particular user case are enumerators taking tracks around big parcels, and taking the opportunity of walking with the interviewee to ask the rest of the questions.

Thanks for you support and answers, as usual
Emma

[mathieubossaert]

Hi @Emma_Joseph_Oudin ,

no but it is a feature some of us would be glad to have :

Record a geoline in the background

What is the general goal of the feature? I'd like to be able to kick off a 'trace' at the beginning of a form or group and for it to collect location points automatically in the background while being able to complete the rest of the form. This would then be saved in a field (in a format that can be converted to a 'track' - maybe just lat/long pairs). If its possible to set the time interval that would be a good way of reducing battery load (i.e. turn gps on and off between points if necessary…

[justinsven]

Hi @Emma_Joseph_Oudin,

CyberTracker (an ODK client) does support this. Check out the documentation here:

Save

There is also a sample form under demos here called "Track file":
https://cybertrackerwiki.org/xlsform/demos.

The way it works is through side-effects of the save operation, i.e. when you save you can turn the track timer on/off using an expression. When stopping, it populates a hidden file question in the form with a compressed geojson or KMZ file with all the track points.

Let me know if you would like to explore this and I can help you get set up.

Cheers,
-Justin