Re: plotting free form ascii data

[Raphael Kudela <kudela(at)cats.ucsc.edu>]

Dr. Fanning-

You are correct, my original problem was that the READ_ASCII function
didn't like my file name. After I fixed that issue I tried passing the
ascii data to the wv_applet function which controls the wavelet tookit.
Since the previous post Ronn Kling noted that it is an add on package that
I don't believe my department has the license for. No big deal really, what
I am basically interested in is how to plot the data after it's been read
by READ_ASCII? I don't believe I need the toolkit for this but I'm not
experienced enough to be certain. The online help indicates the READ_ASCII
places the data in a structure variable, which I assume does not need to be
defined independently?

Cheers,

Patrick

David Fanning wrote:

> Patrick writes:
>
> > sorry for the brevity on the last post. What I have currently is:
> > pro plotinteractive_doplot, pstate
> > plot, (*pstate).profile_data, LINESTYLE = (*pstate).linestyle
> > end
> >
> > pro plotinteractive_read, event
> > widget_control, event.top, GET_UVALUE = pstate
> > ; read in the data for the 1-D plot from a free-form ascii
> > ; matrix.
> >
> > profile_data = read_ascii(test,
> > template=ascii_template(test,BROWSE_LINES=4241), $
> >                       DATA_START=13)
> >
> > ; call the wavelet toolkit:
> > plotinteractive_wvtoolkit, pstate
> >
> > end
> >
> > ;pro plotinteractive_draw, event
> >
> > ;widget_control, event.top, GET_UVALUE = pstate
> > ; check for motion events.
> > ;if (event.type eq 2) then begin
> >       ; convert the coordinates from device to data
> > ;     datac = convert_coord(event.x, event.y, /DEVICE, /TO_DATA)
> > ;     statusstr = strtrim(datac[0], 2) + ',' + strtrim(datac[1],2)
> > ;     widget_control, (*pstate).status, SET_VALUE = statusstr
> > ;endif
> >
> > ;end
> >
> >
> > pro plotinteractive_quit, event
> > widget_control, event.top, GET_UVALUE = pstate
> > ; kill the widget.
> > ptr_free, pstate
> > widget_control, event.top, /DESTROY
> >
> > end
> >
> > pro plotinteractive_wvtoolkit, event
> > ;widget_control, event.top, GET_UVALUE = pState
> > WV_APPLET, ARRAY=profile_data, GROUP_LEADER=winID
> >
> > ; call the do routine to replot.
> > plotinteractive_doplot, pstate
> >
> > end
> >
> > --the program proceeds until it gets to pro plotinteractive_wvtoolkit
> > then stops. Giving the error:
> > % XMANAGER: Caught unexpected error from client application. Message
> > follows...
> > % Attempt to call undefined procedure/function: 'WV_APPLET'.
> > % Execution halted at:  PLOTINTERACTIVE_WVTOOLKIT   42
> > /home/swifs/training/idlinterm/interplot4.pro
> > %                       PLOTINTERACTIVE_READ   14
> > /home/swifs/training/idlinterm/interplot4.pro
> > %                       XMANAGER_EVLOOP_STANDARD  478
> > /auto/soft/idl/idl_5.4/lib/xmanager.pro
> > %                       XMANAGER          708
> > /auto/soft/idl/idl_5.4/lib/xmanager.pro
> > %                       PLOTINTERACTIVE   101
> > /home/swifs/training/idlinterm/interplot4.pro
> > %                       $MAIN$
> >
> > What is the correct way to call wv_applet?
>
> I don't know how WV_APPLET should be called.
> I've never heard of it. Is this an IDL program in
> your path?
>
> But I thought the original problem was that
> READ_ASCII didn't like the filename. I can well
> believe this, since in the example:
>
> > profile_data = read_ascii(test, $
> > template=ascii_template(test,BROWSE_LINES=4241), $
> >                       DATA_START=13)
>
> the variable "test" is nowhere defined in this
> procedure. This should be the name of a data file,
> for example:
>
>    test = 'mydata.dat'
>
> I'd be saving up for a good book on widget
> programming, too. I'm not sure the example
> you are following is going to get you too far. :-)
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting
> Phone: 970-221-0438 E-Mail: davidf@dfanning.com
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Toll-Free IDL Book Orders: 1-888-461-0155