Re: XForms: downsampling data before plotting via xy_plot

From: zaphodb (zaphodb@wanadoo.nl)
Date: Wed Mar 07 2001 - 13:20:51 EST

  • Next message: Bill Unruh: "Re: XForms: downsampling data before plotting via xy_plot"

    # To subscribers of the xforms list from "zaphodb" <zaphodb@wanadoo.nl> :

    >
    > > I've been using the xy_plot routine a lot and only recently I noticed
    > > that when trying to plot a huge number of items in one window,
    > > sometimes nothing is shown at all although it is apparent
    > > that the window is refreshed.
    > > I'm talking about plotting an audio signal as a waveform here.
    >
    > What's a "huge number?" By items, you mean points, I assume. Or do
    > you mean overlays?

    I mean in excess of 100.000 digitized audio sample points, no overlays.

    > Can you provide an example?

    There is a screendump with an example at

    http://home.wanadoo.nl/zaphodb/software/sculpt_o_sound/software.html#1.2
     
    Greetz,

    Zaphod B.

    _________________________________________________
    To unsubscribe, send the message "unsubscribe" to
    xforms-request@bob.usuhs.mil or see
    http://bob.usuhs.mil/mailserv/xforms.html
    XForms Home Page: http://world.std.com/~xforms
    List Archive: http://bob.usuhs.mil/mailserv/list-archives/



    This archive was generated by hypermail 2b29 : Wed Mar 07 2001 - 08:20:17 EST