Hide the red dot when drawing on the whiteboard

macielbombonato / bigbluebutton

Automatically exported from code.google.com/p/bigbluebutton

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Binayak posted a YouTube video in this discussion thread 

   http://groups.google.com/group/bigbluebutton-dev/browse_thread/thread/5e460c3d27bcf964

showing the trailing red dot when writing on the whiteboard.  This is currently 
the default UI.

As each movement of the red dot requires and RPC call within BigBlueButton's 
server, it's worth investigating if temporarily hiding the red dot (such as 
when the presenter is holding down the mouse) would reduce the network traffic 
and increase the speed of the whiteboard.

Original issue reported on code.google.com by ffdixon@gmail.com on 24 Feb 2011 at 12:55

Fixed by https://github.com/bigbluebutton/bigbluebutton/commit/e60bf5aa233dfb2746ee14cffb 3c4cdd065c071e The issue was not the red dot, but rather there is always some latency between the server and the client. The issue was resolved by not erasing the locally drawn shape until the callback shape was received from the server.

macielbombonato / bigbluebutton

Hide the red dot when drawing on the whiteboard #882