When combined it works like this:
- a) Table’s metal frame
- b) Table-top - made of two sheets of acrylic glass and architect paper (working as diffuser for the picture emitted by projector) and two lines of infra-red (IR) Light Emitting Diodes (LED). It's fixed to a metal frame fixed with two hinges to the table’s frame.
- c) Two lines of IR LEDs - with appropriate power supply
- d) USB Web-camera with IR filter attached on flexible arm. IR filter is made of overexposed and processed negative film.
- e) Short-throw projector
- f) PC with Windows
The software part consist of Flash application which takes the touch coordinates from Flosc which is an open source communication gateway transforming all TUIO (OSC based) standarized UDP communication from e.g. Touchlib (which is a video-analysis software library for reading the touch coordinates on multitouch displays) or from TUIO Simulator to TCP-formatted data for Flash (via Flash's XMLSocket).
The main goal of this project is to create a multi‐touch sensitive application for two‐dimensional graphic visualizations of a few basic concepts of physics (esp. mechanics). It is meant to be used by primary school pupils as a simple educational entertainment tool making them familiar with physics and allowing for certain extent of creativity. Young users can actively participate in the learning process by designing and testing their own simulations in a visually catchy cartoon‐style environment. Therefore the program will fulfill the idea of "learning by playing" and hopefully promote interest in science and technology among children.