1. Frame origin: coordinates 0, 0 How a tablet works 10-12 April 2012, Mshs, University of Poitiers, France

2. Frame origin: coordinates 0, 0 Screen 10-12 April 2012, Mshs, University of Poitiers, France

3. Frame origin: coordinates X =0, y= 0 10-12 April 2012, Mshs, University of Poitiers, France In E&P, a tablet area (zone) can be associated with an action

4. coordinates Talking about handwriting or eye movements is basically talking about locations and time. Locations are defined in reference to a 2D coordinates system (screen, tablet, etc.), in the form « vertical position » and «horizontal position ». The location is expressed in a measure unit, relative to its coordinates frame. 10-12 April 2012, Mshs, University of Poitiers, France