Re: [gtkextra] slow updates

[Jose Eusebio Roza Pando <jeroza alu uah es>]

Hi, Alan.
I haven't any idea. I use
gtk_plot_set_yrange(GTK_PLOT(active_plot), 0.,value);
and
gtk_plot_set_ticks(GTK_PLOT(active_plot),1,value/2,1);
and it works fine.
Remember: If you use logaritmic scale you must use 0.1 instead 0.0
in the min value.
I'm sorry i don't know what is your problem.
Cheers
          Eusebio.

"Dugas, Alan" escribió:

> Jose,
>
> Thanks for your response!  I have been able to make some progress on this
> issue.  It appears that the order of setting the axis ticks and the axis
> range is important.  Initially I was setting the axis ticks and then the
> axis range before painting and refreshing.  When I changed the order to set
> the axis range first and then the tick marks, I got a significant
> improvement in performance:-)
>
> In addition to the above, I am running into a problem where the y-axis does
> not always display a number next to all the major tick marks.  The problem
> is always at the bottom of the axis where the x and y axis' meet.  This is
> somewhat confusing since I set the axis range using:
>
> gtk_plot_set_range(GTK_PLOT(active_plot), x_min, x_max, 0.0,
> largest_bin_number);
>
> Based on this function, I would expect the y-axis should always display a
> number 0.0 up to largest_bin_number.  Any ideas?
>
>                                 -- Stupid Genius
>
> > ----------
> > From:         Jose Eusebio Roza Pando[SMTP:jeroza alu uah es]
> > Sent:         Monday, December 18, 2000 2:10 PM
> > To:   Dugas, Alan
> > Cc:   gtk-app-devel-list gnome org;
> > scigraphica-gtkextra lists sourceforge net
> > Subject:      Re: [gtkextra] slow updates
> >
> > "Dugas, Alan" escribió:
> >
> > > Hi,
> > >
> > > I am running into a problem while using a gtkplot inside a
> > gtkplotcanvas.
> > > Has anyone run into slow updating of plots when the dataset is changed?
> > It
> > > seems that when the x-axis range changes dramatically, say 700K to 7, I
> > get
> > > updates that take over a minute to occur:-(  During this time my cpu
> > usage
> > > spikes, the gtk app I'm writing locks up, and the system slows down to a
> > > crawl.  Any ideas would be greatly appreciated!
> > >
> > >                                 -- Stupid Genius
> > >
> > > _______________________________________________
> > > Scigraphica-gtkextra mailing list
> > > Scigraphica-gtkextra lists sourceforge net
> > > http://lists.sourceforge.net/mailman/listinfo/scigraphica-gtkextra
> >
> > I have the same problem, when a parameter in gtkplot is changed the update
> > is
> > very slow.
> > When I have a dataset with 300.000 points inside, the update takes 15
> > seconds.
> >
> > If your array_x has 700K points , although you only use some of them, the
> > updating will be very slow,
> > I think the array_x must only have the elements with points.
> > Cheers,
> > Eusebio
> >
> > --
> > "No me des las gracias a mi,
> >  daselas a la ley de la gravedad"
> >  MacGyver en The Simpsons

--
"No me des las gracias a mi,
 daselas a la ley de la gravedad"
 MacGyver en The Simpsons