OnlineSignal 
    Class to represent 1-dimensional online time signals.
Functions
Link copied to clipboard
                  Returns the internal chain of segments.
Link copied to clipboard
                  Link copied to clipboard
                  Performs an update of the internal representation of the signal, given the data available in the update.
Refines the current signal given the argument's update data by setting the signal value in the time interval: [
u.getStart(), u.getEnd()).