open whiteboard
is a drawing websocket javascript application,
you can find more information on the given link.
https://developer.mozilla.org/fr/demosdetail/open-whiteboard
Get ChicagoBoss
git clone http://github.com/mihawk/ChicagoBoss.git
cd ChicagoBoss
make
cd ..
Get draw
git clone http://github.com/mihawk/draw.git
cd draw
make
make start
Open http://localhost:8001/draw
in your browser,
open a second web browser on the same url, or a tab
in the first browser then start to draw. :)
Behind the scenes, you should look at:
src/lib/draw_protocol.erl
priv/init/draw_02_draw_protocol.erl