snapshot of signal automatically??

Hi everybody...

I work at my final project...and I need to snapshot of my signal from serial port, but I need that automatically by codes not manually...

I can do that in Matlab, if yes, how to do that?

Help me please...

[Walter Roberson]

What do you mean by "snapshot" in this context?

[Tariq Nazzal]

after I drawing the signal, I need to save this signal, but I need save it as image, snapshot is take a picture for the signal, that is I mean

Answer 1

[Walter Roberson]

getframe()

[Tariq Nazzal]

Thanks a lot to your answer, I read from help about it, but my new question is where the figure is store? In current folder? And what the name for figure, if I write f= getframe(s), f is name of image? And s is name of my signal?

[Walter Roberson]

http://www.mathworks.com/help/matlab/ref/getframe.html

F = getframe(h) gets a frame from the figure or axes identified by handle h.

getframe returns a movie frame, which is a structure having two fields: [...]

In other words the captured data is returned as an array, and you capture an axes (which would contain a plot). No figure name or signal name involved.

[Tariq Nazzal]

aha, thanks a lot Walter