Re: gEDA-user: Simulation troubles ...

[Kai-Martin Knaak <kmk@xxxxxxxxxxxxxxx>]

On Sat, 10 Nov 2007 10:53:55 -0500, Dan McMahill wrote:

> Here are some questions I have about any tool for waveform viewing:

I'll fill in answers for xmgrace 


> Can you update plots as more data becomes available?

Yes.
There is an option to automatically rescale the graph if new data points 
exceed the visible limits. 


> Is a cursor readout supported?

Not exactly like you seem to imply (apply a user configurable formular to 
cursor readout). But there is a workaround: You can configure a 
derivative graph that applies some math magic to the raw data. The cursor 
will show the value of this second graph like any other.


> Custom gridlines?  (Rectangular, Polar, Nichols, Smith, others)

Yes, for Rectangular, Polar, Smith, and others. I don't know what a 
Nichols chart is ...


> Is it easy to zoom in and out?

yes.


> Can you scroll once you're zoomed in?

yes.


> Can large amounts of data be handled (thousands and thousands of
> points)?

My data sets typically comprised 1^6 points. Does this qualify as 
"thousends and thousends"? Anyway, I didn't test how large the data files 
could get.


> Can it read out one or two waveforms out of a file that may have
> thousands?

No. 
I'd use a trivial awk scrip to single out the desired waveform.


>> Any reason to reinvent the wheel?
> 
> We'd like a round one?

xmgrace is open source. If the offending edges are small, it may be a lot 
easier to fix the issue in place than to breed a whole new app.

---<(kaimartin)>---
-- 
Kai-Martin Knaak
http://lilalaser.de/blog



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