Openbci_gui: Start data stream should clear previous time series and accelerometer screen

[jps2000]

Problem

Start data stream does not clear time series and accelerometer

Expected

start always with blank screens. If there is remaining data this is confusing.

Operating System and Version

w7

GUI Version

4.0.1

Running standalone app

downloaded app

Type of OpenBCI Board

/Ganglion

Are you using a WiFi Shield?

No

[retiutut]

@jps2000 Is this after you press Stop System and then press Start System?

[jps2000]

No; Start system clears the time series + acc already.
I am talking about Start Data Stream. Clear traces is in particular important in playback when moving to another time and start data stream again.
Try following sequence:
do playback of a file
press start data stream
press stop data stream
move slider to a different time point
press start data stream to continue
then you see old data and new data moving along the time series and acc without a gap

But also during normal mode it is strange behaviour to see recordings in one sequence coming from different times. So I suggest to clear times series and accelerometer whenever start data stream is pressed.
Also when the slider is moved to a different timepoint. this would be nice to have

[retiutut]

@jps2000 Thank you for describing the process step by step!

I think the crucial step is when you move slider to a different time point. Currently, accelerometer and time series are cleared when we use skipToStartButtonAction(). I'm sure I can apply this to when the slider is moved.

getting input from @produceconsumerobot

[retiutut]

@produceconsumerobot Agrees with you @jps2000. 😄

I will try to implement the following fixes:

• Clear accelerometer and time series when playback slider is moved

• Clear accelerometer and time series when start data stream is pressed

[jps2000]

Thank you looks, good now