On 2025-03-11 00:16, Ekaitz Zarraga wrote:
On 2025-03-10 16:21, Christopher Howard wrote:
According to ngspice documentation, it doesn't have a GUI. There are
many GUIs you can use though.
Properly speaking, ngspice does not have a GUI to drive commands.
However, ngspice comes with a "plot" command, which per this tutorial,
is supposed to make a graph appear in a graphical window.
https://ngspice.sourceforge.io/ngspice-tutorial.html
With some more investigation last week, I determined that ngspice has
a --with-x option, and I believe that the ngspice package in Guix is
not using the option. However, I tried building ngspice myself using
this option and I quickly ran into a build error, related to it not
being able to find an an Xaw library. Even with -D libxaw, configure
reports "configure: error: Couldn't find Xaw library". So, perhaps the
package was simply unable to build ngspice --with-x.
I don't really care much about this now, though, as I figured out that
ngspice's "plot" command can be replaced by a similar "gnuplot"
command which causes the same graph to be constructed with gnuplot.
This works well most of the time. However, "gnuplot" command does
require an extra argument (specifying the image file to save to) and
it doesn't handle axis ranges in quite the same way, so "gnuplot" is
not quite a drop-in replacement for "plot" in tutorials.
Oh! OK! Now I get what you meant!
I managed to make it build with the viewport and also moved some deps
from the library to the package itself.
Here's the patch for it. I'll review carefully and commit it during the
next days.
If you want to add anything, please do.
From e349d634209621bb20ae96c0aec1d5310341ec15 Mon Sep 17 00:00:00 2001
Message-ID:
<e349d634209621bb20ae96c0aec1d5310341ec15.1741648445.git.eka...@elenq.tech>
From: Ekaitz Zarraga <eka...@elenq.tech>
Date: Tue, 11 Mar 2025 00:12:44 +0100
Subject: [PATCH] WIP: ngspice
Change-Id: I00e8766947d2c5dfea20d42e3eb02b0e9e15879a
---
gnu/packages/engineering.scm | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 28c1996df90..8fa123bc617 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -2200,10 +2200,10 @@ (define-public libngspice
(delete-file-recursively
(string-append #$output
"/share/ngspice/scripts")))))
- #:configure-flags #~(list "--enable-openmp" "--enable-ciderlib"
+ #:configure-flags #~(list "--enable-openmp" "--enable-cider"
"--enable-xspice" "--with-ngshared")))
(native-inputs (list bison flex))
- (inputs (list libxaw openmpi))
+ (inputs (list openmpi))
(home-page "https://ngspice.sourceforge.net/";)
(synopsis "Mixed-level/mixed-signal circuit simulator")
(description
@@ -2222,19 +2222,16 @@ (define-public ngspice
(inherit libngspice)
(name "ngspice")
(arguments
- (substitute-keyword-arguments
- (strip-keyword-arguments
- (list #:tests?)
- (package-arguments libngspice))
+ (substitute-keyword-arguments (package-arguments libngspice)
+ ;; Tests require a X server running, so we keep them disabled
((#:configure-flags flags)
- #~(cons "--with-readline=yes"
- (delete "--with-ngshared"
- #$flags)))
+ #~(cons* "--enable-rpath" "--with-x" "--with-readline=yes"
+ (delete "--with-ngshared" #$flags)))
((#:phases phases)
#~(modify-phases #$phases
(delete 'delete-scripts)))))
(native-inputs (list perl))
- (inputs (list libngspice readline))))
+ (inputs (list libngspice readline libxaw libx11))))
(define trilinos-serial-xyce
;; Note: This is a Trilinos containing only the packages Xyce needs,
so we
base-commit: 90b0d2936b90e7a892fc43bf176977a8043ff732
Pushed in 3bf7a0e8c431abfcba51806ee2a3eea9e0865472 and
d9a25a19e4e225c38d231915647826e66aca4498
Those should make your ngspice have X11 support and also some extra minifix.
If you guix pull you'll have that available.
I tested with:
```
voltage divider netlist
V1 in 0 1
R1 in out 1k
R2 out 0 2k
.control
tran 50u 50m
plot in out
.endc
```
Let me know if you find any issues.
Best,
Ekaitz
.end
