Visual Represenation of Eye tracking data in Grasshopper

Hi!

I am undertaking a university project where by I wish to understand people's eye movements.

I have built this eye tracking device:
http://rmantiuk.strony.wi.ps.pl/projects/diy/

And am using this software to capture the raw data:
http://eyeinfo.itu.dk/index.php/projects/low-cost-gaze-tracking

I wish to then use that raw data in Grasshopper to somehow produce a visual representation of: - Hotspots/key areas paid attention to
- Pathways eye movement have made

It would be great if this could be done on some form of timeline so that I could place a video/scenes behind and see where the subject was looking and at what.

I am an absolute newby at Grasshopper so would really appreciate any advice anyone could provide!

Many thanks
Lucy

Replies to This Discussion

Permalink Reply by David Rutten on October 21, 2015 at 10:14am

What's the shape your recorded data comes in? Is it a textfile, csv, some sort of binary format? Can you upload one of these recordings (or partial recordings, or made up data)?

In general creating animations with Grasshopper is possible but awkward, as it does not have an in-build timer or sense of duration. A common approach is to load all data and then animate a slider that iterates over all entries. Sometimes it is not possible to load all data if there's too much of it, but it sounds like your data would not take up too much space as it's made up of points/vectors and timestamps.

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