Re: gEDA-user: On integrating simulator in gschem

[al davis <ad252@xxxxxxxxxxxxxxxx>]

On Monday 15 March 2010, Dave McGuire wrote:
> On Mar 15, 2010, at 12:32 AM, Dan McMahill wrote:
> >>> With the help of Ivan I'm writing a viewer, oscopy
> >>> (http://repo.or.cz/w/oscopy.git) based draft #4 of this
> >>> page:
> >>> http://geda.seul.org/wiki/geda:data_plotting_improvements
> >>
> >> IMHO, there are already very mature open source data
> >> plotters out   there. Think gnuplot, or grace. What is the
> >> rationale in rolling your own?
> >
> > unless I'm missing some key feature of gnuplot and grace,
> > they   stink for plotting simulator output.
> >
> > I spend a *lot* of time looking at simulator output and
> > some of the   things which are used over and over again are
> > easy interactive zoom in/out, panning at a fixed zoom,
> > putting cursors on waveforms that will lock onto the actual
> > datapoints, having delta cursors, and having a flexible and
> > *extensible* waveform calculator.  The types of
> > postprocessing range from the very simple (out_plus -
> > out-minus) to more complex but standard like an fft to
> > fairly complex custom functions.
>
>    Good heavens.  That's the sort of stuff I do with a
> digitizing   oscilloscope.  I could never imagine doing that
> with simulator output.

Because you have never used a good simulator/schematic 
combination.  What Dan describes is not only doable, it is what 
is needed to be taken seriously.  Nothing less will do.  

The functionality of a digital oscilloscope is the minimum.  
Build that as a base, then you can start to think of what is 
really needed.

I use gwave.  It is the best so far, but there is a lot of room 
for improvement.



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