2012-09-11

Sketch-a-TUI

Upplagd av Víctor Guerrero



Sketch-a-TUI Fast and low-cost alternative to prototype tangible user interfaces using:
  • paper
  • conductive ink pen
  • device with capacitive screen
Build your desired shape with paper and then with the ink pen draw lines with dots in the end. When the user touches the lines with the fingers his capacity is carried to the dots at the end. As these are in contact with the screen it will be as the user touches the screen.

Use different dot disposition to identify different shapes. A basic approach to code your own algorithm to detect the shapes could be as follows:
  • detect the touches in the screen
  • compute the distance between the dots and find the shape with that distance
  • compute the orientation of the shape using the angle of the segment that binds both dots

Slides available here

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