drawing tablet - extract coordinates
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Hi,
I am trying to extract X Y drawing coordinates from a tablet (sort of touchscreen) that is connected to my computer using a USB connection. It is not a wacom tablet (so I can't use the great wintabmex functions). Does anyone have an idea on how to extract this data to matlab?
Thanks! Naama
2 Comments
Walter Roberson
on 23 Feb 2011
What kind of tablet is it then?
I would hazard a guess that it creates a virtual serial port and communicates via serial -- that was a common design for non-USB tablets.
Umar
on 18 Jul 2024
Hi Naama,
Try using Psychtoolbox PsychHID functions because it will help you read the raw data from the tablet, including the X Y coordinates of the drawing. For more information PsychHID function, please refer to
http://psychtoolbox.org/docs/PsychHID-Devices
http://psychtoolbox.org/docs/GetTouchDeviceIndices
http://psychtoolbox.org/docs/PsychHID
Please let me know if you have any further questions.
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