Re: plot data stream in realtime

[Matt Flax <flatmax flatmax org>]

Can't you just use the function gtk_databox_xyc_graph_set_length to 
change the length ?

When you call gtk_databox_xyc_graph_set_length it also calls
g_object_notify (G_OBJECT (xyc_graph), "length");
which should re-draw.

Matt

On 11/12/2012 06:38 AM, Joaquín Ignacio Aramendía wrote:
> > Good point.  We don't necessarily have to change the number of 
> > datapoints but "mute" a certain range at the very beginning of a 
> > run.  The range is all that seems to be changing. Now the difference 
> > (and I'm not sure what the goal is) here is gtkdb pre-bounds the data 
> > ahead of time (to a max runlength) which prevents this from running 
> > unbound in time.
> >
> > Should we modify gtkdatabox to have a fifo mode where data is dropped 
> > as new data comes in?
> I was going to this issue when pointing the use of GArray for the data 
> and add a *_push_point(x,y) method in the graph object. We can use the 
> GArray functionality for growing arrays of points and take the lenght 
> and other data at drawing time, not at creation time. Sounds 
> reasonable? (Maybe add a configurable maximum length or sth)
>
> Regards
> Joaquín
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