Are you choosing "Mag" for magnitude or "real" or "imag" or ??? when you're
plotting a particular axis? Mag will, by defiinition, do
sqrt(real^2+imag^2), which is positive. I think that was submitted as a bug
on sourceforge, when, in fact, it's not... just poor choice on the user's
part. See the sourceforge page for KJWAVES for more information.
I hope that helps.
Regards,
Kurt
======================
Message: 4
Date: Wed, 26 Mar 2008 17:09:31 +0200
From: "Yaniv Hachamo" <[EMAIL PROTECTED]>
Subject: gEDA-user: negative voltage on KJwaves
To: <geda-user@moria.seul.org>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
Hello,
I have trouble to get a plot of negative voltage in KJwaves using
Ngspice,
i.e. negative values become positive.
My test netlist is:
V1 n0 0 SIN(0 10 1kHz)
C1 n1 n0 3.3nF
R1 0 n1 1k
.END
When running Ngspice and plot n0 I get nice sine wave.
When I`m importing this net to KJwaves and plotting V(n0) I get the negative
part of the sine as positive.
Any ideas will be welcome.
Yaniv
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